Lincoln Nautilus Manuals

Lincoln Nautilus: Parking Aid - Vehicles With: Rear Parking Aid / Parking Aid. Diagnosis and Testing

Diagnostic Trouble Code (DTC) Chart

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).


Module DTC Description Action
PAM B1303:13 Park Assist Switch: Circuit Open GO to Pinpoint Test D
PAM B1303:9E Park Assist Switch: Stuck On GO to Pinpoint Test D
PAM B1B36:08 Right Front Outer Sensor: Bus Signal/Message Failures GO to Pinpoint Test I
PAM B1B36:1F Right Front Outer Sensor: Circuit Intermittent GO to Pinpoint Test I
PAM B1B36:31 Right Front Outer Sensor: No Signal GO to Pinpoint Test I
PAM B1B36:96 Right Front Outer Sensor: Component Internal Failure GO to Pinpoint Test N
PAM B1B36:98 Right Front Outer Sensor: Component Or System Over Temperature GO to Pinpoint Test O
PAM B1B38:08 Right Front Inner Sensor: Bus Signal/Message Failures GO to Pinpoint Test J
PAM B1B38:1F Right Front Inner Sensor: Circuit Intermittent GO to Pinpoint Test J
PAM B1B38:31 Right Front Inner Sensor: No Signal GO to Pinpoint Test J
PAM B1B38:96 Right Front Inner Sensor: Component Internal Failure GO to Pinpoint Test N
PAM B1B38:98 Right Front Inner Sensor: Component Or System Over Temperature GO to Pinpoint Test O
PAM B1B40:08 Left Front Outer Sensor: Bus Signal/Message Failures GO to Pinpoint Test K
PAM B1B40:1F Left Front Outer Sensor: Circuit Intermittent GO to Pinpoint Test K
PAM B1B40:31 Left Front Outer Sensor: No Signal GO to Pinpoint Test K
PAM B1B40:96 Left Front Outer Sensor: Component Internal Failure GO to Pinpoint Test N
PAM B1B40:98 Left Front Outer Sensor: Component Or System Over Temperature GO to Pinpoint Test O
PAM B1B42:08 Left Front Inner Sensor: Bus Signal/Message Failures GO to Pinpoint Test L
PAM B1B42:1F Left Front Inner Sensor: Circuit Intermittent GO to Pinpoint Test L
PAM B1B42:31 Left Front Inner Sensor: No Signal GO to Pinpoint Test L
PAM B1B42:96 Left Front Inner Sensor: Component Internal Failure GO to Pinpoint Test N
PAM B1B42:98 Left Front Inner Sensor: Component Or System Over Temperature GO to Pinpoint Test O
PAM B1B44:08 Right Rear Outer Sensor: Bus Signal/Message Failures GO to Pinpoint Test E
PAM B1B44:1F Right Rear Outer Sensor: Circuit Intermittent GO to Pinpoint Test E
PAM B1B44:31 Right Rear Outer Sensor: No Signal GO to Pinpoint Test E
PAM B1B44:96 Right Rear Outer Sensor: Component Internal Failure GO to Pinpoint Test M
PAM B1B44:98 Right Rear Outer Sensor: Component Or System Over Temperature GO to Pinpoint Test P
PAM B1B46:08 Right Rear Inner Sensor: Bus Signal/Message Failures GO to Pinpoint Test F
PAM B1B46:1F Right Rear Inner Sensor: Circuit Intermittent GO to Pinpoint Test F
PAM B1B46:31 Right Rear Inner Sensor: No Signal GO to Pinpoint Test F
PAM B1B46:96 Right Rear Inner Sensor: Component Internal Failure GO to Pinpoint Test M
PAM B1B46:98 Right Rear Inner Sensor: Component Or System Over Temperature GO to Pinpoint Test P
PAM B1B48:08 Left Rear Outer Sensor: Bus Signal/Message Failures GO to Pinpoint Test G
PAM B1B48:1F Left Rear Outer Sensor: Circuit Intermittent GO to Pinpoint Test G
PAM B1B48:31 Left Rear Outer Sensor: No Signal GO to Pinpoint Test G
PAM B1B48:96 Left Rear Outer Sensor: Component Internal Failure GO to Pinpoint Test M
PAM B1B48:98 Left Rear Outer Sensor: Component Or System Over Temperature GO to Pinpoint Test P
PAM B1B50:08 Left Rear Inner Sensor: Bus Signal/Message Failures GO to Pinpoint Test H
PAM B1B50:1F Left Rear Inner Sensor: Circuit Intermittent GO to Pinpoint Test H
PAM B1B50:31 Left Rear Inner Sensor: No Signal GO to Pinpoint Test H
PAM B1B50:96 Left Rear Inner Sensor: Component Internal Failure GO to Pinpoint Test M
PAM B1B50:98 Left Rear Inner Sensor: Component Or System Over Temperature GO to Pinpoint Test P
PAM B1B57:11 Front Sensors Power Circuit: Circuit Short To Ground GO to Pinpoint Test B
PAM B1B58:11 Rear Sensors Power Circuit: Circuit Short To Ground GO to Pinpoint Test C
PAM U0100:00 Lost Communication With ECM/PCM 'A': No Sub Type Information GO to Pinpoint Test S
PAM U0101:00 Lost Communication with TCM: No Sub Type Information GO to Pinpoint Test S
PAM U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module 'A': No Sub Type Information GO to Pinpoint Test T
PAM U0131:00 Lost Communication With Power Steering Control Module 'A': No Sub Type Information GO to Pinpoint Test U
PAM U0140:00 Lost Communication With Body Control Module: No Sub Type Information GO to Pinpoint Test V
PAM U0146:00 Lost Communication With Serial Data Gateway 'A': No Sub Type Information GO to Pinpoint Test W
PAM U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information GO to Pinpoint Test X
PAM U0164:00 Lost Communication With HVAC Control Module: No Sub Type Information GO to Pinpoint Test Y
PAM U0212:00 Lost Communication With Steering Column Control Module: No Sub Type Information GO to Pinpoint Test AA
PAM U0252:00 Lost Communication With Lighting Control Module- Rear 'B': No Sub Type Information GO to Pinpoint Test AB
PAM U0300:57 Internal Control Module Software Incompatibility: Invalid/Incompatible Software Component GO to Pinpoint Test AG
PAM U0401:00 Invalid Data Received from ECM/PCM A: No Sub Type Information GO to Pinpoint Test S
PAM U0402:00 Invalid Data Received from TCM: No Sub Type Information GO to Pinpoint Test S
PAM U0415:00 Invalid Data Received from Anti-Lock Brake System (ABS) Control Module 'A': No Sub Type Information GO to Pinpoint Test T
PAM U0420:00 Invalid Data Received from Power Steering Control Module 'A': No Sub Type Information GO to Pinpoint Test U
PAM U0422:00 Invalid Data Received From Body Control Module: No Sub Type Information GO to Pinpoint Test V
PAM U0423:82 Invalid Data Received from Instrument Panel Cluster Control Module: Alive/Sequence Counter Incorrect/Not Updated GO to Pinpoint Test X
PAM U0424:00 Invalid Data Received From HVAC Control Module: No Sub Type Information GO to Pinpoint Test Y
PAM U0424:82 Invalid Data Received From HVAC Control Module: Alive/Sequence Counter Incorrect/Not Updated GO to Pinpoint Test Y
PAM U0485:82 Invalid Data Received From Radio: Alive/Sequence Counter Incorrect/Not Updated GO to Pinpoint Test Z
PAM U0553:82 Invalid Data Received From Lighting Control Module-Rear 'B': Alive/Sequence Counter Incorrect/Not Updated GO to Pinpoint Test AB
PAM U0554:00 Invalid Data Received From Accessory Protocol Interface Module: No Sub Type Information GO to Pinpoint Test AD
PAM U0554:82 Invalid Data Received From Accessory Protocol Interface Module: Alive/Sequence Counter Incorrect/Not Updated GO to Pinpoint Test AD
PAM U055E:82 Invalid Data Received From Front Controls Interface Module 'B': Alive/Sequence Counter Incorrect/Not Updated GO to Pinpoint Test AC
PAM U1000:00 Solid State Driver Protection Active -Driver Disabled: No Sub Type Information GO to Pinpoint Test AE
PAM U2024:41 Control Module Cal-Config Data: General Checksum Failure GO to Pinpoint Test AF
PAM U2100:00 Initial Configuration Not Complete: No Sub Type Information GO to Pinpoint Test AF
PAM U2101:00 Control Module Configuration Incompatible: No Sub Type Information GO to Pinpoint Test AF
PAM U3000:44 Control Module: Data Memory Failure GO to Pinpoint Test AG
PAM U3000:45 Control Module: Program Memory Failure GO to Pinpoint Test AG
PAM U3000:46 Control Module: Calibration/Parameter Memory Failure GO to Pinpoint Test AG
PAM U3000:49 Control Module: Internal Electronic Failure GO to Pinpoint Test AG

Symptom Chart(s)

  Symptom Chart: Parking Aid


Condition Possible Sources Actions
A module does not communicate with the diagnostic scan tool
  • Fuse
  • Wiring, terminals or connectors
  • PAM
 
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).
The audible parking aid is inoperative
  • Refer to the Pinpoint Test
  GO to Pinpoint Test A
Continuous or intermittent tone when no obstacles or fault codes are present
  • Refer to the Pinpoint Test
  GO to Pinpoint Test Q
The parking aid audio tones are inoperative
  • Refer to the Pinpoint Test
  GO to Pinpoint Test A
The parking aid menu is not available in the message center and cannot be deactivated
  • A MyKey® restricted key is in use
Normal operation.
The parking aid switch is inoperative
  • Refer to the Pinpoint Test
  GO to Pinpoint Test D
The reverse brake assist is inoperative or does not operate correctly
  • Refer to the Pinpoint Test
  GO to Pinpoint Test R

Pinpoint Test(s)


PINPOINT TEST A: THE AUDIBLE PARKING AID IS INOPERATIVE

NOTE: Before disconnecting the PAM or any of the parking aid sensors, verify the connectors are properly seated and latched.

NOTE: If a MyKey® restricted key is in use, the parking aid menu is not available in the message center and the parking aid cannot be deactivated.


Refer to Wiring Diagrams Cell 145 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Parking Aid - System Operation and Component Description (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Description and Operation).

Possible Sources

  • Parking aid system disabled
  • Communication concern
  • PAM
  • IPC concern
  • TR input concern
A1 PERFORM A NETWORK TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform a network test.

Do all modules pass the network test?
Yes GO to A2
No DIAGNOSE any communication concerns.
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

A2 CHECK THE PAM (PARKING ASSIST CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using the diagnostic scan tool, perform the PAM self-test.

Are any parking aid Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to the appropiate DTC Chart in this section.
No GO to A3

A3 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST
  • Using the diagnostic scan tool, perform the IPC self-test.

Are any IPC Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Instrumentation, Message Center and Warning Chimes (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing).
No GO to A4

A4 VERIFY THE PARKING AID IS ENABLED
  • Verify the rear parking aid and front parking aid (if equipped) is enabled in the IPC message center.

Is the parking aid system enabled?
Yes GO to A5
No ENABLE the parking aid system.

A5 CHECK FOR CORRECT GEAR INPUT
  • Apply the parking brake.
  • Ignition ON.
  • While monitoring the IPC PRNDL display, briefly select each gear in the entire gear range.

Does the IPC PRNDL indicator match the gear selection throughout the entire range?
Yes GO to A6
No
REFER to: Instrumentation, Message Center and Warning Chimes (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing).

A6 CHECK THE AUDIO CHIMES
  • Ignition OFF.
  • Open the driver door.
  • Place the headlamp switch in the ON position.

Does the warning chime operate through the audio system?
Yes GO to A7
No
REFER to: Instrumentation, Message Center and Warning Chimes (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing).

A7 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the PAM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PAM .
REFER to: Parking Assist Control Module (PAM) (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST B: B1B57:11

NOTE: Before disconnecting the PAM or any of the parking aid sensors, verify the connectors are properly seated and latched.


Refer to Wiring Diagrams Cell 145 for schematic and connector information.

Normal Operation and Fault Conditions

The PAM supplies voltage to the front parking aid sensors via a common circuit.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM B1B57:11 Front Sensors Power Circuit: Circuit Short To Ground A continuous memory and on-demand DTC that sets when the front sensor voltage supply circuit is shorted to ground or the signal return circuit.

Possible Sources

  • Wiring, terminals or connectors
  • Front parking aid sensor
  • Front active park assist sensor (if equipped)
  • PAM
B1 CHECK THE FRONT BUMPER WIRING HARNESS
  • Ignition OFF.
  • Inspect the front bumper wiring harness for opens, shorts, grounds, or corrosion.

Is the front bumper wiring harness OK?
Yes GO to B2
No REPAIR or INSTALL a new bumper wiring harness.

B2 CHECK THE LHF (LEFT-HAND FRONT) OUTER PARKING AID SENSOR FOR AN INTERNAL SHORT
  • Disconnect: LHF Front Outer Parking Aid Sensor C1428.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the PAM self-test.

Is DTC B1B57:11 present?
Yes GO to B3
No INSTALL a new LHF outer parking aid sensor.
REFER to: Front Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).

B3 CHECK THE LHF (LEFT-HAND FRONT) INNER PARKING AID SENSOR FOR AN INTERNAL SHORT
  • Ignition OFF.
  • Disconnect: LHF Inner Parking Aid Sensor C1429.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the PAM self-test.

Is DTC B1B57:11 present?
Yes If the vehicle is equipped with active park assist, GO to B4
If the vehicle is NOT equipped with active park assist, GO to B6
No INSTALL a new LHF inner parking aid sensor.
REFER to: Front Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).

B4 CHECK THE LHF (LEFT-HAND FRONT) ACTIVE PARK ASSIST SENSOR FOR AN INTERNAL SHORT
  • Ignition OFF.
  • Disconnect: LHF active park assist sensor C1607.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the PAM self-test.

Is DTC B1B57:11 present?
Yes GO to B5
No INSTALL a new LHF front active park assist sensor.
REFER to: Front Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).

B5 CHECK THE RHF (RIGHT-HAND FRONT) ACTIVE PARK ASSIST SENSOR FOR AN INTERNAL SHORT
  • Ignition OFF.
  • Disconnect: RHF active park assist sensor C1608.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the PAM self-test.

Is DTC B1B57:11 present?
Yes GO to B6
No INSTALL a new RHF active park assist sensor.
REFER to: Front Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).

B6 CHECK THE RHF (RIGHT-HAND FRONT) INNER PARKING AID SENSOR FOR AN INTERNAL SHORT
  • Ignition OFF.
  • Disconnect: RHF inner parking aid sensor C1430.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the PAM self-test.

Is DTC B1B57:11 present?
Yes GO to B7
No INSTALL a new RHF inner parking aid sensor.
REFER to: Front Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).

B7 CHECK THE RHF (RIGHT-HAND FRONT) OUTER PARKING AID SENSOR FOR AN INTERNAL SHORT
  • Ignition OFF.
  • Disconnect: RHF Outer Parking Aid Sensor C1431.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the PAM self-test.

Is DTC B1B57:11 present?
Yes GO to B8
No INSTALL a new RHF outer parking aid sensor.
REFER to: Front Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).

B8 CHECK THE FRONT PARKING AID SENSOR VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect PAM C3237B .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C3237B-2   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to B9
No REPAIR the circuit.

B9 CHECK THE FRONT PARKING AID SENSOR VOLTAGE SUPPLY CIRCUIT AND GROUND CIRCUIT FOR A SHORT TOGETHER
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C3237B-2   C3237B-12

Is the resistance greater than 10,000 ohms?
Yes GO to B10
No REPAIR the circuit.

B10 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the PAM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PAM .
REFER to: Parking Assist Control Module (PAM) (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST C: B1B58:11

NOTE: Before disconnecting the PAM or any of the parking aid sensors, verify the connectors are properly seated and latched.


Refer to Wiring Diagrams Cell 145 for schematic and connector information.

Normal Operation and Fault Conditions

The PAM supplies voltage to the front parking aid sensors via a common circuit.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM B1B58:11 Rear Sensors Power Circuit: Circuit Short To Ground A continuous memory and on-demand DTC that sets when the rear sensor voltage supply circuit is shorted to ground or to the signal return circuit.

Possible Sources

  • Wiring, terminals or connectors
  • Rear parking aid sensor
  • PAM
C1 CHECK THE REAR BUMPER WIRING HARNESS
  • Ignition OFF.
  • Inspect the rear bumper wiring harness for opens, shorts, grounds, or corrosion.

Is the bumper wiring harness OK?
Yes GO to C2
No REPAIR or INSTALL a new bumper wiring harness.

C2 CHECK THE LHR (LEFT-HAND REAR) OUTER PARKING AID SENSOR FOR AN INTERNAL SHORT
  • Disconnect: LHR Outer Parking Aid Sensor C4009.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the PAM self-test.

Is DTC B1B58:11 present?
Yes GO to C3
No INSTALL a new LHR outer parking aid sensor.
REFER to: Rear Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).

C3 CHECK THE LHR (LEFT-HAND REAR) INNER PARKING AID SENSOR FOR AN INTERNAL SHORT
  • Ignition OFF.
  • Disconnect: LHR Inner Parking Aid Sensor C4010.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the PAM self-test.

Is DTC B1B58:11 present?
Yes GO to C4
No INSTALL a new LHR inner parking aid sensor.
REFER to: Rear Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).

C4 CHECK THE RHR (RIGHT-HAND REAR) INNER PARKING AID SENSOR FOR AN INTERNAL SHORT
  • Ignition OFF.
  • Disconnect: RHR Inner Parking Aid Sensor C4012.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the PAM self-test.

Is DTC B1B58:11 present?
Yes GO to C5
No INSTALL a new RHR inner parking aid sensor.
REFER to: Rear Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).

C5 CHECK THE RHR (RIGHT-HAND REAR) OUTER PARKING AID SENSOR FOR AN INTERNAL SHORT
  • Ignition OFF.
  • Disconnect: RHR Outer Parking Aid Sensor C4011.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the PAM self-test.

Is DTC B1B58:11 present?
Yes If the vehicle is equipped with rear side active park assist sensors, GO to C6
If the vehicle is NOT equipped with rear side active park assist sensors, GO to C8
No INSTALL a new RHR outer parking aid sensor.
REFER to: Rear Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).

C6 CHECK THE RHR (RIGHT-HAND REAR) SIDE SENSOR FOR AN INTERNAL SHORT
  • Ignition OFF.
  • Disconnect: RHR side active park assist sensor C4421.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the PAM self-test.

Is DTC B1B58:11 present?
Yes GO to C7
No INSTALL a new RHR side sensor.
REFER to: Rear Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).

C7 CHECK THE LHR (LEFT-HAND REAR) SIDE SENSOR FOR AN INTERNAL SHORT
  • Ignition OFF.
  • Disconnect: LHR Side Active Park Assist Sensor C4420.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the PAM self-test.

Is DTC B1B58:11 present?
Yes GO to C8
No INSTALL a new LHR side sensor.
REFER to: Rear Active Park Assist Sensors (413-13C Parking Aid - Vehicles With: Active Park Assist, Removal and Installation).

C8 CHECK THE REAR PARKING AID SENSOR VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect PAM C3237A .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C3237A-3   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to C9
No REPAIR the circuit.

C9 CHECK THE PARKING AID SENSOR VOLTAGE SUPPLY CIRCUIT AND GROUND CIRCUIT FOR A SHORT TOGETHER
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C3237A-3   C3237A-10

Is the resistance greater than 10,000 ohms?
Yes GO to C10
No REPAIR the circuit.

C10 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the PAM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PAM .
REFER to: Parking Assist Control Module (PAM) (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST D: THE PARKING AID DISABLE SWITCH IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

Refer to Wiring Diagrams Cell 145 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Parking Aid - System Operation and Component Description (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM B1303:13 Park Assist Switch: Circuit Open A continuous DTC that sets in the PAM when the PAM detects a stuck open in the parking aid disable switch input circuit.
PAM B1303:9E Park Assist Switch: Stuck On A continuous DTC that sets in the PAM when the PAM detects a short to ground in the parking aid disable switch input circuit.

Possible Sources

  • Wiring, terminals or connectors
  • Parking aid disable switch
  • PAM
D1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify the operation of the parking aid system.

Does the parking aid system operate correctly?
Yes CLEAR the DTC . The system is operating correctly at this time. The concern may have been caused by high network traffic or the driver's perception of how the parking aid system operate. REFER to the Owner's Manual.
No GO to D2

D2 CHECK THE PAM (PARKING ASSIST CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, perform the PAM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes For DTC B1303:13, GO to D4
For DTC B1303:9E, GO to D3
For all other PAM Diagnostic Trouble Codes (DTCs). REFER to the PAM DTC Chart in this section.
No GO to D5

D3 CHECK THE PARKING AID SWITCH CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect PAM C3237A .
  • Disconnect instrument panel switch pack C2035 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2035-2   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to D6
No REPAIR the circuit.

D4 CHECK THE PARKING AID SWITCH CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect PAM C3237A .
  • Disconnect instrument panel switch pack C2035 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2035-2   C3237A-13

Is the resistance less than 3 ohms?
Yes GO to D5
No REPAIR the circuit.

D5 CHECK THE PARKING AID SWITCH GROUND CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2035-1   Ground

Is the resistance less than 3 ohms?
Yes GO to D6
No REPAIR the circuit.

D6 CHECK THE PARKING AID SWITCH OPERATION
  • Connect instrument panel switch pack C2035 .
  • Measure while pressing and releasing the parking aid switch:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C3237A-13   Ground

Is the resistance less than 3 ohms with the switch pressed and greater than 10,000 ohms with the switch released?
Yes GO to D7
No INSTALL a new instrument panel switch pack.

D7 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the PAM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PAM .
REFER to: Parking Assist Control Module (PAM) (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST E: B1B44:08, B1B44:31, OR B1B44:1F

NOTE: Before disconnecting the PAM or any of the parking aid sensors, verify the connectors are properly seated and latched.


Refer to Wiring Diagrams Cell 145 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Parking Aid - System Operation and Component Description (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM B1B44:08 Right Rear Outer Sensor: Bus Signal/Message Failures A continuous and on-demand DTC that sets in the PAM when there is a message failure on the LIN for the RHR outer parking aid sensor.
PAM B1B44:31 Right Rear Outer Sensor: No Signal A continuous and on-demand DTC that sets in the PAM when no signal is received on the LIN for the RHR outer parking aid sensor.
PAM B1B44:1F Right Rear Outer Sensor: Circuit Intermittent A continuous and on-demand DTC that sets in the PAM when an intermittent fault is detected on the LIN for the RHR outer parking aid sensor.

Possible Sources

  • Wiring, terminals or connectors
  • RHR outer parking aid sensor
  • PAM
E1 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform the PAM self-test.
  • Check the parking aid Diagnostic Trouble Codes (DTCs) from the self-test.

Are Diagnostic Trouble Codes (DTCs) for multiple rear parking aid sensors recorded?
Yes GO to E2
No • For Diagnostic Trouble Codes (DTCs) B1B44:08, B1B44:31, or B1B44:1F GO to E3
• For all other PAM Diagnostic Trouble Codes (DTCs), REFER to the PAM DTC Chart in this section.

E2 CHECK THE REAR BUMPER WIRING HARNESS
  • Inspect the rear bumper wiring harness for opens, shorts, grounds or corrosion.

Is the rear bumper wiring harness OK?
Yes GO to E3
No REPAIR or INSTALL a new rear bumper wiring harness.

E3 CHECK FOR VOLTAGE TO THE SENSOR
  • Ignition OFF.
  • Disconnect RHR outer parking aid sensor C4011 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4011-1 Ground

Is the voltage greater than 9 volts?
Yes GO to E4
No REPAIR the circuit.

E4 CHECK FOR GROUND AT THE SENSOR
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4011-1   C4011-3

Is the voltage greater than 9 volts?
Yes GO to E5
No REPAIR the circuit.

E5 CHECK THE SENSOR FOR A SHORT TO POWER
  • Disconnect PAM C3237A .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4011-2 Ground

Is any voltage present?
Yes REPAIR the affected circuits.
No GO to E6

E6 CHECK THE SENSOR FOR A SHORT TO GROUND
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4011-2 Ground

Is the resistance greater than 10,000 ohms?
Yes GO to E7
No REPAIR the circuit.

E7 CHECK THE SENSOR FOR A SHORT TO VREF OR SIGNAL RETURN CIRCUITS
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4011-2   C4011-1
      C4011-2   C4011-3

Are the resistances greater than 10,000 ohms?
Yes GO to E8
No REPAIR the affected circuits.

E8 CHECK THE SENSOR CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
      C4011-1   C3237A-3
      C4011-2   C3237A-5
      C4011-3   C3237A-10

Are the resistances less than 3 ohms?
Yes GO to E9
No REPAIR the affected circuit.

E9 INSTALL A KNOWN GOOD SENSOR
  • Connect PAM C3237A .
  • Install a known good sensor for the suspect RHR outer parking aid sensor.
    REFER to: Rear Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
  • Ignition ON.
  • Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs) and repeat the self-test.

Is DTC B1B44:08, B1B44:31, or B1B44:1F still present?
Yes GO to E10
No INSTALL a new RHR outer parking aid sensor.
REFER to: Rear Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).

E10 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the PAM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PAM .
REFER to: Parking Assist Control Module (PAM) (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST F: B1B46:08, B1B46:31, OR B1B46:1F

NOTE: Before disconnecting the PAM or any of the parking aid sensors, verify the connectors are properly seated and latched.


Refer to Wiring Diagrams Cell 145 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Parking Aid - System Operation and Component Description (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM B1B46:08 Right Rear Inner Sensor: Bus Signal/Message Failures A continuous and on-demand DTC that sets in the PAM when there is a message failure on the LIN for the RHR inner parking aid sensor.
PAM B1B46:31 Right Rear Inner Sensor: No Signal A continuous and on-demand DTC that sets in the PAM when no signal is received on the LIN for the RHR inner parking aid sensor.
PAM B1B46:1F Right Rear Inner Sensor: Circuit Intermittent A continuous and on-demand DTC that sets in the PAM when an intermittent fault is detected on the LIN for the RHR inner parking aid sensor.

Possible Sources

  • Wiring, terminals or connectors
  • RHR inner parking aid sensor
  • PAM
F1 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform the PAM self-test.
  • Check the parking aid Diagnostic Trouble Codes (DTCs) from the self-test.

Are Diagnostic Trouble Codes (DTCs) for multiple rear parking aid sensors recorded?
Yes GO to F2
No • For Diagnostic Trouble Codes (DTCs) B1B46:08, B1B46:31, or B1B46:1F GO to F3
• For all other PAM Diagnostic Trouble Codes (DTCs), REFER to the PAM DTC Chart in this section.

F2 CHECK THE REAR BUMPER WIRING HARNESS
  • Inspect the rear bumper wiring harness for opens, shorts, grounds or corrosion.

Is the rear bumper wiring harness OK?
Yes GO to F3
No REPAIR or INSTALL a new rear bumper wiring harness.

F3 CHECK FOR VOLTAGE TO THE SENSOR
  • Ignition OFF.
  • Disconnect RHR inner parking aid sensor C4012 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4012-1 Ground

Is the voltage greater than 9 volts?
Yes GO to F4
No REPAIR the circuit.

F4 CHECK FOR GROUND AT THE SENSOR
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4012-1   C4012-3

Is the voltage greater than 9 volts?
Yes GO to F5
No REPAIR the circuit.

F5 CHECK THE SENSOR FOR A SHORT TO POWER
  • Disconnect PAM C3237A .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4012-2 Ground

Is any voltage present?
Yes REPAIR the affected circuits.
No GO to F6

F6 CHECK THE SENSOR FOR A SHORT TO GROUND
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4012-2 Ground

Is the resistance greater than 10,000 ohms?
Yes GO to F7
No REPAIR the circuit.

F7 CHECK THE SENSOR FOR A SHORT TO VREF OR SIGNAL RETURN CIRCUITS
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4012-2   C4012-1
      C4012-2   C4012-3

Are the resistances greater than 10,000 ohms?
Yes GO to F8
No REPAIR the affected circuits.

F8 CHECK THE SENSOR CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
      C4012-1   C3237A-3
      C4012-2   C3237A-15
      C4012-3   C3237A-10

Are the resistances less than 3 ohms?
Yes GO to F9
No REPAIR the affected circuit.

F9 INSTALL A KNOWN GOOD SENSOR
  • Connect PAM C3237A .
  • Install a known good sensor for the suspect RHR inner parking aid sensor.
    REFER to: Rear Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
  • Ignition ON.
  • Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs) and repeat the self-test.

Is DTC B1B46:08, B1B46:31, or B1B46:1F still present?
Yes GO to F10
No INSTALL a new RHR outer parking aid sensor.
REFER to: Rear Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).

F10 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the PAM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PAM .
REFER to: Parking Assist Control Module (PAM) (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST G: B1B48:08, B1B48:31, OR B1B48:1F

NOTE: Before disconnecting the PAM or any of the parking aid sensors, verify the connectors are properly seated and latched.


Refer to Wiring Diagrams Cell 145 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Parking Aid - System Operation and Component Description (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM B1B48:08 Left Rear Outer Sensor: Bus Signal/Message Failures A continuous and on-demand DTC that sets in the PAM when there is a message failure on the LIN for the LHR outer parking aid sensor.
PAM B1B48:31 Left Rear Outer Sensor: No Signal A continuous and on-demand DTC that sets in the PAM when no signal is received on the LIN for the LHR outer parking aid sensor.
PAM B1B48:1F Left Rear Outer Sensor: Circuit Intermittent A continuous and on-demand DTC that sets in the PAM when an intermittent fault is detected on the LIN for the LHR outer parking aid sensor.

Possible Sources

  • Wiring, terminals or connectors
  • LHR outer parking aid sensor
  • PAM
G1 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform the PAM self-test.
  • Check the parking aid Diagnostic Trouble Codes (DTCs) from the self-test.

Are Diagnostic Trouble Codes (DTCs) for multiple rear parking aid sensors recorded?
Yes GO to G2
No • For Diagnostic Trouble Codes (DTCs) B1B44:08, B1B44:31, or B1B48:1F GO to G3
• For all other PAM Diagnostic Trouble Codes (DTCs), REFER to the PAM DTC Chart in this section.

G2 CHECK THE REAR BUMPER WIRING HARNESS
  • Inspect the rear bumper wiring harness for opens, shorts, grounds or corrosion.

Is the rear bumper wiring harness OK?
Yes GO to G3
No REPAIR or INSTALL a new rear bumper wiring harness.

G3 CHECK FOR VOLTAGE TO THE SENSOR
  • Ignition OFF.
  • Disconnect LHR outer parking aid sensor C4009 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4009-1 Ground

Is the voltage greater than 9 volts?
Yes GO to G4
No REPAIR the circuit.

G4 CHECK FOR GROUND AT THE SENSOR
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4009-1   C4009-3

Is the voltage greater than 9 volts?
Yes GO to G5
No REPAIR the circuit.

G5 CHECK THE SENSOR FOR A SHORT TO POWER
  • Disconnect PAM C3237A .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4009-2 Ground

Is any voltage present?
Yes REPAIR the affected circuits.
No GO to G6

G6 CHECK THE SENSOR FOR A SHORT TO GROUND
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4009-2 Ground

Is the resistance greater than 10,000 ohms?
Yes GO to G7
No REPAIR the circuit.

G7 CHECK THE SENSOR FOR A SHORT TO VREF OR SIGNAL RETURN CIRCUITS
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4009-2   C4009-1
      C4009-2   C4009-3

Are the resistances greater than 10,000 ohms?
Yes GO to G8
No REPAIR the affected circuits.

G8 CHECK THE SENSOR CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
      C4009-1   C3237A-3
      C4009-2   C3237A-16
      C4009-3   C3237A-10

Are the resistances less than 3 ohms?
Yes GO to G9
No REPAIR the affected circuit.

G9 INSTALL A KNOWN GOOD SENSOR
  • Connect PAM C3237A .
  • Install a known good sensor for the suspect LHR outer parking aid sensor.
    REFER to: Rear Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
  • Ignition ON.
  • Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs) and repeat the self-test.

Is DTC B1B48:08, B1B48:31, or B1B48:1F still present?
Yes GO to G10
No INSTALL a new LHR outer parking aid sensor.
REFER to: Rear Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).

G10 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the PAM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PAM .
REFER to: Parking Assist Control Module (PAM) (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST H: B1B50:08, B1B50:31, OR B1B50:1F

NOTE: Before disconnecting the PAM or any of the parking aid sensors, verify the connectors are properly seated and latched.


Refer to Wiring Diagrams Cell 145 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Parking Aid - System Operation and Component Description (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM B1B50:08 Left Rear Inner Sensor: Bus Signal/Message Failures A continuous and on-demand DTC that sets in the PAM when there is a message failure on the LIN for the LHR inner parking aid sensor.
PAM B1B50:31 Left Rear Inner Sensor: No Signal A continuous and on-demand DTC that sets in the PAM when no signal is received on the LIN for the LHR inner parking aid sensor.
PAM B1B50:1F Left Rear Inner Sensor: Circuit Intermittent A continuous and on-demand DTC that sets in the PAM when an intermittent fault is detected on the LIN for the LHR inner parking aid sensor.

Possible Sources

  • Wiring, terminals or connectors
  • LHR inner parking aid sensor
  • PAM
H1 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform the PAM self-test.
  • Check the parking aid Diagnostic Trouble Codes (DTCs) from the self-test.

Are Diagnostic Trouble Codes (DTCs) for multiple rear parking aid sensors recorded?
Yes GO to H2
No • For Diagnostic Trouble Codes (DTCs) B1B50:08, B1B50:31, or B1B50:1F GO to H3
• For all other PAM Diagnostic Trouble Codes (DTCs), REFER to the PAM DTC Chart in this section.

H2 CHECK THE REAR BUMPER WIRING HARNESS
  • Inspect the rear bumper wiring harness for opens, shorts, grounds or corrosion.

Is the rear bumper wiring harness OK?
Yes GO to H3
No REPAIR or INSTALL a new rear bumper wiring harness.

H3 CHECK FOR VOLTAGE TO THE SENSOR
  • Ignition OFF.
  • Disconnect LHR inner parking aid sensor C4010 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4010-1 Ground

Is the voltage greater than 9 volts?
Yes GO to H4
No REPAIR the circuit.

H4 CHECK FOR GROUND AT THE SENSOR
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4010-1   C4010-3

Is the voltage greater than 9 volts?
Yes GO to H5
No REPAIR the circuit.

H5 CHECK THE SENSOR FOR A SHORT TO POWER
  • Disconnect PAM C3237A .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4010-2 Ground

Is any voltage present?
Yes REPAIR the affected circuits.
No GO to H6

H6 CHECK THE SENSOR FOR A SHORT TO GROUND
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4010-2 Ground

Is the resistance greater than 10,000 ohms?
Yes GO to H7
No REPAIR the circuit.

H7 CHECK THE SENSOR FOR A SHORT TO VREF OR SIGNAL RETURN CIRCUITS
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C4010-2   C4010-1
      C4010-2   C4010-3

Are the resistances greater than 10,000 ohms?
Yes GO to H8
No REPAIR the affected circuits.

H8 CHECK THE SENSOR CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
      C4010-1   C3237A-3
      C4010-2   C3237A-6
      C4010-3   C3237A-10

Are the resistances less than 3 ohms?
Yes GO to H9
No REPAIR the affected circuit.

H9 INSTALL A KNOWN GOOD SENSOR
  • Connect PAM C3237A .
  • Install a known good sensor for the suspect LHR inner parking aid sensor.
    REFER to: Rear Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
  • Ignition ON.
  • Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs) and repeat the self-test.

Is DTC B1B50:08, B1B50:31, or B1B50:1F still present?
Yes GO to H10
No INSTALL a new LHR inner parking aid sensor.
REFER to: Rear Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).

H10 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the PAM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PAM .
REFER to: Parking Assist Control Module (PAM) (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST I: B1B36:08, B1B36:31, OR B1B36:1F

NOTE: Before disconnecting the PAM or any of the parking aid sensors, verify the connectors are properly seated and latched.


Refer to Wiring Diagrams Cell 145 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Parking Aid - System Operation and Component Description (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM B1B36:08 Right Front Outer Sensor: Bus Signal/Message Failures A continuous and on-demand DTC that sets in the PAM when there is a message failure on the LIN for the RHF outer parking aid sensor.
PAM B1B36:31 Right Front Outer Sensor: No Signal A continuous and on-demand DTC that sets in the PAM when no signal is received on the LIN for the RHF outer parking aid sensor.
PAM B1B36:1F Right Front Outer Sensor: Circuit Intermittent A continuous and on-demand DTC that sets in the PAM when an intermittent fault is detected on the LIN for the RHF outer parking aid sensor.

Possible Sources

  • Wiring, terminals or connectors
  • RHF outer parking aid sensor
  • PAM
I1 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform the PAM self-test.
  • Check the parking aid Diagnostic Trouble Codes (DTCs) from the self-test.

Are Diagnostic Trouble Codes (DTCs) for multiple front parking aid sensors recorded?
Yes GO to I2
No • For Diagnostic Trouble Codes (DTCs) B1B36:08, B1B36:31, or B1B36:1F GO to I3
• For all other PAM Diagnostic Trouble Codes (DTCs), REFER to the PAM DTC Chart in this section.

I2 CHECK THE FRONT BUMPER WIRING HARNESS
  • Inspect the front bumper wiring harness for opens, shorts, grounds or corrosion.

Is the front bumper wiring harness OK?
Yes GO to I3
No REPAIR or INSTALL a new front bumper wiring harness.

I3 CHECK FOR VOLTAGE TO THE SENSOR
  • Ignition OFF.
  • Disconnect RHF outer parking aid sensor C1431 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1431-1 Ground

Is the voltage greater than 9 volts?
Yes GO to I4
No REPAIR the circuit.

I4 CHECK FOR GROUND AT THE SENSOR
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1431-1   C1431-3

Is the voltage greater than 9 volts?
Yes GO to I5
No REPAIR the circuit.

I5 CHECK THE SENSOR FOR A SHORT TO POWER
  • Disconnect PAM C3237B .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1431-2 Ground

Is any voltage present?
Yes REPAIR the affected circuits.
No GO to I6

I6 CHECK THE SENSOR FOR A SHORT TO GROUND
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1431-2 Ground

Is the resistance greater than 10,000 ohms?
Yes GO to I7
No REPAIR the circuit.

I7 CHECK THE SENSOR FOR A SHORT TO VREF OR SIGNAL RETURN CIRCUITS
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1431-2   C1431-1
      C1431-2   C1431-3

Are the resistances greater than 10,000 ohms?
Yes GO to I8
No REPAIR the affected circuits.

I8 CHECK THE SENSOR CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
      C1431-1   C3237B-2
      C1431-2   C3237B-3
      C1431-3   C3237B-12

Are the resistances less than 3 ohms?
Yes GO to I9
No REPAIR the affected circuit.

I9 INSTALL A KNOWN GOOD SENSOR
  • Connect PAM C3237B .
  • Install a known good sensor for the suspect RHF outer parking aid sensor.
    REFER to: Front Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
  • Ignition ON.
  • Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs) and repeat the self-test.

Is DTC B1B36:08, B1B36:31, or B1B36:1F still present?
Yes GO to I10
No INSTALL a new RHF outer parking aid sensor.
REFER to: Front Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).

I10 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the PAM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PAM .
REFER to: Parking Assist Control Module (PAM) (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST J: B1B38:08, B1B38:31, OR B1B38:1F

NOTE: Before disconnecting the PAM or any of the parking aid sensors, verify the connectors are properly seated and latched.


Refer to Wiring Diagrams Cell 145 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Parking Aid - System Operation and Component Description (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM B1B38:08 Right Front Inner Sensor: Bus Signal/Message Failures A continuous and on-demand DTC that sets in the PAM when there is a message failure on the LIN for the RHF inner parking aid sensor.
PAM B1B38:31 Right Front Inner Sensor: No Signal A continuous and on-demand DTC that sets in the PAM when no signal is received on the LIN for the RHF inner parking aid sensor.
PAM B1B38:1F Right Front Inner Sensor: Circuit Intermittent A continuous and on-demand DTC that sets in the PAM when an intermittent fault is detected on the LIN for the RHF inner parking aid sensor.

Possible Sources

  • Wiring, terminals or connectors
  • RHF inner parking aid sensor
  • PAM
J1 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform the PAM self-test.
  • Check the parking aid Diagnostic Trouble Codes (DTCs) from the self-test.

Are Diagnostic Trouble Codes (DTCs) for multiple front parking aid sensors recorded?
Yes GO to J2
No • For Diagnostic Trouble Codes (DTCs) B1B38:08, B1B38:31, or B1B38:1F GO to J3
• For all other PAM Diagnostic Trouble Codes (DTCs), REFER to the PAM DTC Chart in this section.

J2 CHECK THE FRONT BUMPER WIRING HARNESS
  • Inspect the front bumper wiring harness for opens, shorts, grounds or corrosion.

Is the front bumper wiring harness OK?
Yes GO to J3
No REPAIR or INSTALL a new front bumper wiring harness.

J3 CHECK FOR VOLTAGE TO THE SENSOR
  • Ignition OFF.
  • Disconnect RHF inner parking aid sensor C1430 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1430-1 Ground

Is the voltage greater than 9 volts?
Yes GO to J4
No REPAIR the circuit.

J4 CHECK FOR GROUND AT THE SENSOR
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1430-1   C1430-3

Is the voltage greater than 9 volts?
Yes GO to J5
No REPAIR the circuit.

J5 CHECK THE SENSOR FOR A SHORT TO POWER
  • Disconnect PAM C3237B .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1430-2 Ground

Is any voltage present?
Yes REPAIR the affected circuits.
No GO to J6

J6 CHECK THE SENSOR FOR A SHORT TO GROUND
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1430-2 Ground

Is the resistance greater than 10,000 ohms?
Yes GO to J7
No REPAIR the circuit.

J7 CHECK THE SENSOR FOR A SHORT TO VREF OR SIGNAL RETURN CIRCUITS
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1430-2   C1430-1
      C1430-2   C1430-3

Are the resistances greater than 10,000 ohms?
Yes GO to J8
No REPAIR the affected circuits.

J8 CHECK THE SENSOR CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
      C1430-1   C3237B-2
      C1430-2   C3237B-9
      C1430-3   C3237B-12

Are the resistances less than 3 ohms?
Yes GO to J9
No REPAIR the affected circuit.

J9 INSTALL A KNOWN GOOD SENSOR
  • Connect PAM C3237B .
  • Install a known good sensor for the suspect RHF inner parking aid sensor.
    REFER to: Front Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
  • Ignition ON.
  • Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs) and repeat the self-test.

Is DTC B1B38:08, B1B38:31, or B1B38:1F still present?
Yes GO to J10
No INSTALL a new RHF inner parking aid sensor.
REFER to: Front Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).

J10 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the PAM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PAM .
REFER to: Parking Assist Control Module (PAM) (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST K: B1B40:08, B1B40:31, OR B1B40:1F

NOTE: Before disconnecting the PAM or any of the parking aid sensors, verify the connectors are properly seated and latched.


Refer to Wiring Diagrams Cell 145 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Parking Aid - System Operation and Component Description (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM B1B40:08 Left Front Outer Sensor: Bus Signal/Message Failures A continuous and on-demand DTC that sets in the PAM when there is a message failure on the LIN for the LHF outer parking aid sensor.
PAM B1B40:31 Left Front Outer Sensor: No Signal A continuous and on-demand DTC that sets in the PAM when no signal is received on the LIN for the LHF outer parking aid sensor.
PAM B1B40:1F Left Front Outer Sensor: Circuit Intermittent A continuous and on-demand DTC that sets in the PAM when an intermittent fault is detected on the LIN for the LHF outer parking aid sensor.

Possible Sources

  • Wiring, terminals or connectors
  • LHF outer parking aid sensor
  • PAM
K1 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform the PAM self-test.
  • Check the parking aid Diagnostic Trouble Codes (DTCs) from the self-test.

Are Diagnostic Trouble Codes (DTCs) for multiple front parking aid sensors recorded?
Yes GO to K2
No • For Diagnostic Trouble Codes (DTCs) B1B40:08, B1B40:31, or B1B40:1F GO to K3
• For all other PAM Diagnostic Trouble Codes (DTCs), REFER to the PAM DTC Chart in this section.

K2 CHECK THE FRONT BUMPER WIRING HARNESS
  • Inspect the front bumper wiring harness for opens, shorts, grounds or corrosion.

Is the front bumper wiring harness OK?
Yes GO to K3
No REPAIR or INSTALL a new front bumper wiring harness.

K3 CHECK FOR VOLTAGE TO THE SENSOR
  • Ignition OFF.
  • Disconnect LHF outer parking aid sensor C1428 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1428-1 Ground

Is the voltage greater than 9 volts?
Yes GO to K4
No REPAIR the circuit.

K4 CHECK FOR GROUND AT THE SENSOR
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1428-1   C1428-3

Is the voltage greater than 9 volts?
Yes GO to K5
No REPAIR the circuit.

K5 CHECK THE SENSOR FOR A SHORT TO POWER
  • Disconnect PAM C3237B .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1428-2 Ground

Is any voltage present?
Yes REPAIR the affected circuits.
No GO to K6

K6 CHECK THE SENSOR FOR A SHORT TO GROUND
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1428-2 Ground

Is the resistance greater than 10,000 ohms?
Yes GO to K7
No REPAIR the circuit.

K7 CHECK THE SENSOR FOR A SHORT TO VREF OR SIGNAL RETURN CIRCUITS
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1428-2   C1428-1
      C1428-2   C1428-3

Are the resistances greater than 10,000 ohms?
Yes GO to K8
No REPAIR the affected circuits.

K8 CHECK THE SENSOR CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
      C1428-1   C3237B-2
      C1428-2   C3237B-10
      C1428-3   C3237B-12

Are the resistances less than 3 ohms?
Yes GO to K9
No REPAIR the affected circuit.

K9 INSTALL A KNOWN GOOD SENSOR
  • Connect PAM C3237B .
  • Install a known good sensor for the suspect LHF outer parking aid sensor.
    REFER to: Front Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
  • Ignition ON.
  • Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs) and repeat the self-test.

Is DTC B1B40:08, B1B40:31, or B1B40:1F still present?
Yes GO to K10
No INSTALL a new LHF outer parking aid sensor.
REFER to: Front Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).

K10 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the PAM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PAM .
REFER to: Parking Assist Control Module (PAM) (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST L: B1B42:08, B1B42:31, OR B1B42:1F

NOTE: Before disconnecting the PAM or any of the parking aid sensors, verify the connectors are properly seated and latched.


Refer to Wiring Diagrams Cell 145 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Parking Aid - System Operation and Component Description (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM B1B42:08 Left Front Inner Sensor: Bus Signal/Message Failures A continuous and on-demand DTC that sets in the PAM when there is a message failure on the LIN for the LHF inner parking aid sensor.
PAM B1B42:31 Left Front Inner Sensor: No Signal A continuous and on-demand DTC that sets in the PAM when no signal is received on the LIN for the LHF inner parking aid sensor.
PAM B1B42:1F Left Front Inner Sensor: Circuit Intermittent A continuous and on-demand DTC that sets in the PAM when an intermittent fault is detected on the LIN for the LHF inner parking aid sensor.

Possible Sources

  • Wiring, terminals or connectors
  • LHF inner parking aid sensor
  • PAM
L1 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform the PAM self-test.
  • Check the parking aid Diagnostic Trouble Codes (DTCs) from the self-test.

Are Diagnostic Trouble Codes (DTCs) for multiple front parking aid sensors recorded?
Yes GO to L2
No • For Diagnostic Trouble Codes (DTCs) B1B42:08, B1B42:31, or B1B42:1F GO to L3
• For all other PAM Diagnostic Trouble Codes (DTCs), REFER to the PAM DTC Chart in this section.

L2 CHECK THE FRONT BUMPER WIRING HARNESS
  • Inspect the front bumper wiring harness for opens, shorts, grounds or corrosion.

Is the front bumper wiring harness OK?
Yes GO to L3
No REPAIR or INSTALL a new front bumper wiring harness.

L3 CHECK FOR VOLTAGE TO THE SENSOR
  • Ignition OFF.
  • Disconnect LHF inner parking aid sensor C1429 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1429-1 Ground

Is the voltage greater than 9 volts?
Yes GO to L4
No REPAIR the circuit.

L4 CHECK FOR GROUND AT THE SENSOR
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1429-1   C1429-3

Is the voltage greater than 9 volts?
Yes GO to L5
No REPAIR the circuit.

L5 CHECK THE SENSOR FOR A SHORT TO POWER
  • Disconnect PAM C3237B .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1429-2 Ground

Is any voltage present?
Yes REPAIR the affected circuits.
No GO to L6

L6 CHECK THE SENSOR FOR A SHORT TO GROUND
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1429-2 Ground

Is the resistance greater than 10,000 ohms?
Yes GO to L7
No REPAIR the circuit.

L7 CHECK THE SENSOR FOR A SHORT TO VREF OR SIGNAL RETURN CIRCUITS
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1429-2   C1429-1
      C1429-2   C1429-3

Are the resistances greater than 10,000 ohms?
Yes GO to L8
No REPAIR the affected circuits.

L8 CHECK THE SENSOR CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
      C1429-1   C3237B-2
      C1429-2   C3237B-4
      C1429-3   C3237B-12

Are the resistances less than 3 ohms?
Yes GO to L9
No REPAIR the affected circuit.

L9 INSTALL A KNOWN GOOD SENSOR
  • Connect PAM C3237B .
  • Install a known good sensor for the suspect LHF inner parking aid sensor.
    REFER to: Front Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
  • Ignition ON.
  • Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs) and repeat the self-test.

Is DTC B1B42:08, B1B42:31, or B1B42:1F still present?
Yes GO to L10
No INSTALL a new LHF inner parking aid sensor.
REFER to: Front Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).

L10 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the PAM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PAM .
REFER to: Parking Assist Control Module (PAM) (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST M: B1B44:96, B1B46:96, B1B48:96, B1B50:96

NOTE: Before disconnecting the PAM or any of the parking aid sensors, verify the connectors are properly seated and latched.


Refer to Wiring Diagrams Cell 145 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Parking Aid - System Operation and Component Description (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM B1B44:96 Right Rear Outer Sensor: Component Internal Failure A continuous memory and on-demand DTC that sets when the RHR outer parking aid sensor has internally failed or has an incorrect attenuation time.
PAM B1B46:96 Right Rear Inner Sensor: Component Internal Failure A continuous memory and on-demand DTC that sets when the RHR inner parking aid sensor has internally failed or has an incorrect attenuation time.
PAM B1B48:96 Left Rear Outer Sensor: Component Internal Failure A continuous memory and on-demand DTC that sets when the LHR outer parking aid sensor has internally failed or has an incorrect attenuation time.
PAM B1B50:96 Left Rear Inner Sensor: Component Internal Failure A continuous memory and on-demand DTC that sets when the LHR inner parking aid sensor has internally failed or has an incorrect attenuation time.

Possible Sources

  • Rear parking aid sensor
  • PAM
M1 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform the PAM self-test.
  • Check the parking aid Diagnostic Trouble Codes (DTCs) from the self-test.

Are parking aid Diagnostic Trouble Codes (DTCs) other than B1B44:96, B1B46:96, B1B48:96 or B1B50:96 recorded?
Yes For all other Diagnostic Trouble Codes (DTCs), REFER to the DTC Chart in this section.
No GO to M2

M2 CHECK THE PARKING AID SENSOR DISTANCE PARAMETER IDENTIFICATIONS (PIDS) WITH NO OBJECTS BEHIND THE VEHICLE

NOTE: Make sure the area around the vehicle is clear of anything that can activate the parking aid system.

  • Clean the rear bumper and sensors with high-pressure water.
  • Make sure the parking aid sensors are flush-mounted in their bezel.
  • Ignition ON.
  • Using a diagnostic scan tool,

    Access the  PAM  and monitor the  LRI_DIST (cm)  PID

    Access the  PAM  and monitor the  LRO_DIST (cm)  PID

    Access the  PAM  and monitor the  RRI_DIST (cm)  PID

    Access the  PAM  and monitor the  RRO_DIST (cm)  PID

    The PID reads 2,540mm (100in) on a correctly functioning sensor.

Does the PID read 2,540mm (100in)?
Yes GO to M3
No GO to M4

M3 CHECK THE PARKING AID SENSOR DISTANCE PARAMETER IDENTIFICATIONS (PIDS) WITH A TEST OBJECT BEHIND THE VEHICLE

NOTE: Make sure the area around the vehicle is clear of anything that can activate the parking aid system.

  • Using a diagnostic scan tool,

    Access the  PAM  and monitor the  LRI_DIST (cm)  PID

    Access the  PAM  and monitor the  LRO_DIST (cm)  PID

    Access the  PAM  and monitor the  RRI_DIST (cm)  PID

    Access the  PAM  and monitor the  RRO_DIST (cm)  PID

  • While monitoring the Parameter Identifications (PIDs), move a test object into and out of the detection zone behind each sensor. For an example of a test object,
    REFER to: Azimuth System Check (413-13A Parking Aid - Vehicles With: Rear Parking Aid, General Procedures).

Does the PID approximately match the distance from the test object to the rear bumper of the vehicle?
Yes GO to M5
No GO to M4

M4 CHECK THE PARKING AID SENSORS
  • Ignition OFF.
  • Install a known good sensor for the suspect parking aid sensor.
    REFER to: Rear Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the PAM self-test.

Is the concern still present?
Yes GO to M5
No INSTALL a new rear parking aid sensor.
REFER to: Rear Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).

M5 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the PAM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PAM .
REFER to: Parking Assist Control Module (PAM) (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST N: B1B36:96, B1B38:96, B1B40:96, B1B42:96

NOTE: Before disconnecting the PAM or any of the parking aid sensors, verify the connectors are properly seated and latched.


Refer to Wiring Diagrams Cell 145 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Parking Aid - System Operation and Component Description (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM B1B36:96 Right Front Outer Sensor: Component Internal Failure A continuous memory and on-demand DTC that sets when the RHF outer parking aid sensor has internally failed or has an incorrect attenuation time.
PAM B1B38:96 Right Front Inner Sensor: Component Internal Failure A continuous memory and on-demand DTC that sets when the RHF inner parking aid sensor has internally failed or has an incorrect attenuation time.
PAM B1B40:96 Left Front Outer Sensor: Component Internal Failure A continuous memory and on-demand DTC that sets when the LHF outer parking aid sensor has internally failed or has an incorrect attenuation time.
PAM B1B42:96 Left Front Inner Sensor: Component Internal Failure A continuous memory and on-demand DTC that sets when the LHF inner parking aid sensor has internally failed or has an incorrect attenuation time.

Possible Sources

  • Front parking aid sensor
  • PAM
N1 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PAM self-test.
  • Check the parking aid Diagnostic Trouble Codes (DTCs).

Are parking aid Diagnostic Trouble Codes (DTCs) other than B1B36:96, B1B38:96, B1B40:96 or B1B42:96 recorded?
Yes For all other Diagnostic Trouble Codes (DTCs), REFER to the DTC Chart in this section
No GO to N2

N2 CHECK THE PARKING AID SENSOR DISTANCE PARAMETER IDENTIFICATIONS (PIDS) WITH NO OBJECTS IN FRONT OF THE VEHICLE

NOTE: Make sure the area around the vehicle is clear of anything that can activate the parking aid system.

  • Clean the front bumper and sensors with high-pressure water.
  • Make sure the parking aid sensors are flush-mounted in their bezel.
  • Ignition ON.
  • Using a diagnostic scan tool,

    Access the  PAM  and monitor the  LFI_DIST (cm)  PID

    Access the  PAM  and monitor the  LFO_DIST (cm)  PID

    Access the  PAM  and monitor the  RFI_DIST (cm)  PID

    Access the  PAM  and monitor the  RFO_DIST (cm)  PID

    The PID reads 2,540mm (100in) on a correctly functioning sensor.

Does the PID read 2,540mm (100in)?
Yes GO to N3
No GO to N4

N3 CHECK THE PARKING AID SENSOR DISTANCE PARAMETER IDENTIFICATIONS (PIDS) WITH A TEST OBJECT IN FRONT OF THE VEHICLE

NOTE: Make sure the area around the vehicle is clear of anything that can activate the parking aid system.

  • Using a diagnostic scan tool,

    Access the  PAM  and monitor the  LFI_DIST (cm)  PID

    Access the  PAM  and monitor the  LFO_DIST (cm)  PID

    Access the  PAM  and monitor the  RFI_DIST (cm)  PID

    Access the  PAM  and monitor the  RFO_DIST (cm)  PID

  • While monitoring the Parameter Identifications (PIDs), move a test object into and out of the detection zone behind each sensor. For an example of a test object,
    REFER to: Azimuth System Check (413-13A Parking Aid - Vehicles With: Rear Parking Aid, General Procedures).

Does the PID approximately match the distance from the test object to the front bumper of the vehicle?
Yes GO to N5
No GO to N4

N4 CHECK THE PARKING AID SENSORS
  • Ignition OFF.
  • Install a new sensor for the suspect parking aid sensor.
    REFER to: Front Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs). Repeat the self-test. Operate the system and verify the concern is still present.

Is the concern still present?
Yes GO to N5
No INSTALL a new front parking aid sensor.
REFER to: Front Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).

N5 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the PAM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PAM .
REFER to: Parking Assist Control Module (PAM) (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST O: B1B36:98, B1B38:98, B1B40:98, B1B42:98

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM B1B36:98 Right Front Outer Sensor: Component Or System Over Temperature A continuous and on-demand DTC that sets when the RHF outer parking aid sensor detects an over temperature event.
PAM B1B38:98 Right Front Inner Sensor: Component Or System Over Temperature A continuous and on-demand DTC that sets when the RHF inner parking aid sensor detects an over temperature event.
PAM B1B40:98 Left Front Outer Sensor: Component Or System Over Temperature A continuous and on-demand DTC that sets when the LHF outer parking aid sensor detects an over temperature event.
PAM B1B42:98 Left Front Inner Sensor: Component Or System Over Temperature A continuous and on-demand DTC that sets when the LHF inner parking aid sensor detects an over temperature event.

Possible Sources

  • Aftermarket parts
  • Damage to the front bumper or sensor
  • Front parking aid sensor
  • PAM
O1 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform the PAM self-test.
  • Check the parking aid Diagnostic Trouble Codes (DTCs) from the self-test.

Are parking aid Diagnostic Trouble Codes (DTCs) recorded?
Yes For Diagnostic Trouble Codes (DTCs) B1B44:98, B1B46:98, B1B48:98 or B1B50:98; GO to O2
For all other Diagnostic Trouble Codes (DTCs) REFER to the DTC Chart in this section.
No The system is operating correctly at this time.

O2 CHECK THE PARKING AID SENSOR FOR PROPER VENTILATION

NOTE: The operating temperature range for the parking aid sensors is -40°C (-40°F) to 85°C (176°F).

  • Clean the front bumper and sensors with high-pressure water.
  • Make sure the suspect parking aid sensor(s) is flush-mounted in the bezel.
  • Check for damage, debris or any aftermarket air dams that may restrict sensor ventilation.

Is there any damage or aftermarket parts restricting the ventilation to the sensor(s)?
Yes REPAIR or REMOVE the parts as needed.
No GO to O3

O3 CHECK THE PARKING AID SENSORS
  • Ignition OFF.
  • Install a known good sensor for the suspect parking aid sensor.
    REFER to: Front Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the PAM self-test.

Is the concern still present?
Yes GO to O4
No The cause of the concern was an inoperative parking aid sensor. The system is now operating correctly.

O4 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the PAM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PAM .
REFER to: Parking Assist Control Module (PAM) (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST P: B1B44:98, B1B46:98, B1B48:98, B1B50:98

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM B1B44:98 Right Rear Outer Sensor: Component Or System Over Temperature A continuous and on-demand DTC that sets when the RHR outer parking aid sensor detects an over temperature event.
PAM B1B46:98 Right Rear Inner Sensor: Component Or System Over Temperature A continuous and on-demand DTC that sets when the RHR inner parking aid sensor detects an over temperature event.
PAM B1B48:98 Left Rear Outer Sensor: Component Or System Over Temperature A continuous and on-demand DTC that sets when the LHR outer parking aid sensor detects an over temperature event.
PAM B1B50:98 Left Rear Inner Sensor: Component Or System Over Temperature A continuous and on-demand DTC that sets when the LHR inner parking aid sensor detects an over temperature event.

Possible Sources

  • Aftermarket parts
  • Damage to the rear bumper or sensor
  • Rear parking aid sensor
  • PAM
P1 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform the PAM self-test.
  • Check the parking aid Diagnostic Trouble Codes (DTCs) from the self-test.

Are parking aid Diagnostic Trouble Codes (DTCs) recorded?
Yes For Diagnostic Trouble Codes (DTCs) B1B44:98, B1B46:98, B1B48:98 or B1B50:98; GO to P2
For all other Diagnostic Trouble Codes (DTCs), REFER to the DTC Chart in this section.
No The system is operating correctly at this time.

P2 CHECK THE PARKING AID SENSOR FOR PROPER VENTILATION

NOTE: The operating temperature range for the parking aid sensors is -40°C (-40°F) to 85°C (176°F).

  • Clean the rear bumper and sensors with high-pressure water.
  • Make sure the suspect parking aid sensor(s) has its heat shield and is flush-mounted in the bezel.
  • Check for damage, debris or any aftermarket air dams that may restrict sensor ventilation.
  • Check for aftermarket exhaust or other aftermarket parts.

Is there any damage or aftermarket parts restricting the ventilation to the sensor(s)?
Yes REPAIR or REMOVE the parts as needed.
No GO to P3

P3 CHECK THE PARKING AID SENSORS
  • Ignition OFF.
  • Install a known good sensor for the suspect parking aid sensor.
    REFER to: Rear Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the PAM self-test.

Is the concern still present?
Yes GO to P4
No The cause of the concern was an inoperative parking aid sensor. The system is now operating correctly.

P4 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PAM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the PAM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PAM .
REFER to: Parking Assist Control Module (PAM) (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST Q: CONTINUOUS OR INTERMITTENT TONE WHEN NO OBSTACLES OR FAULT CODES ARE PRESENT

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Parking Aid - System Operation and Component Description (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Description and Operation).

Possible Sources

  • Dirty or iced over parking aid sensor(s)
  • Parking aid sensor(s) installed incorrectly
  • Parking aid sensor(s) alignment
  • Isolator ring missing, damaged or misaligned
Q1 VERIFY THE CONCERN
  • Verify the concern

Is there continuous or intermittent tone when no obstacles or fault codes are present?
Yes Dirty or iced over parking aid sensor(s). CLEAN the rear bumper and sensors with high-pressure water.
Ice between parking aid sensor(s) and bezel(s). ALLOW time for the ice between the parking aid sensor(s) and bezel(s) to melt.
Parking aid sensor(s) locked into the rear bumper incorrectly. INSTALL the parking aid sensor(s) into the bezel(s) correctly.
Parking aid sensor(s) are not aligned correctly. CARRY OUT the elevation system check.
REFER to: Elevation System Check (413-13A Parking Aid - Vehicles With: Rear Parking Aid, General Procedures). Parking aid sensor(s) isolator ring missing, damaged or misaligned. INSTALL a new parking aid sensor.
REFER to: Front Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
REFER to: Rear Parking Aid Sensor (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
No The system is working normally at this time.

PINPOINT TEST R: THE REVERSE BRAKE ASSIST IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

Normal Operation and Fault Conditions

The reverse brake assist system is disabled if a fault is detected any of these systems:

  • ABS , traction control or stability control.
  • Rear parking aid.
  • Cross traffic alert.
  • Rear view camera or 360 degree view camera (damage to camera mounting locations).

The reverse brake assist system is disabled if:

  • a door or the liftgate is open.
  • reverse brake assist is turned off.
  • rear parking aid is turned off.
  • cross traffic alert is turned off.
  • traction control is turned off.
  • a trailer is connected.
  • the battery has been disconnected (loss of EPAS learned values).
  • an abs or traction control event is active.

REFER to the Owner's Literature for more information.

Possible Sources

  • Communication concern
  • Parking aid system concern
  • ABS system concern

Visual Inspection and Pre-checks

  • Verify that the traction control and cross traffic alert systems are turned on in the vehicle menus.
R1 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform the network test.

Does the ABS module, PSCM , SODL , SODR , and PAM or IPMB pass the network test?
Yes GO to R2
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

R2 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, retrieve Diagnostic Trouble Codes (DTCs) from the ABS module, PSCM , SODL , SODR , and PAM or IPMB .

Are any Diagnostic Trouble Codes (DTCs) retrived from the ABS module, PSCM , SODL , SODR , and PAM or IPMB ?
Yes REFER to the appropriate workshop manual section to diagnosis the DTC .
No GO to R3

R3 VERIFY THE OPERATION OPERATION OF THE PARKING AID AND ABS (ANTI-LOCK BRAKE SYSTEM) SYSTEM
  • Verify the parking aid and ABS systems operate correctly.

Does the parking aid and ABS systems operate correctly?
Yes The system is operating normally at this time.
No For a parking aid system concern, REFER to the DTC or symptom chart in this section.
For an ABS system concern,
REFER to: Anti-Lock Brake System (ABS) and Stability Control (206-09 Anti-Lock Brake System (ABS) and Stability Control, Diagnosis and Testing).

PINPOINT TEST S: U0100:00, U101:00, U0401:00 OR U402:00

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM U0100:00 Lost Communication With ECM/PCM 'A': No Sub Type Information Sets in continuous memory in the PAM if data messages received from the PCM through the GWM are missing for 5 seconds or longer.
PAM U0101:00 Lost Communication with TCM: No Sub Type Information Sets in continuous memory in the PAM if data messages received from the PCM through the GWM are missing for 5 seconds or longer.
PAM U0401:00 Invalid Data Received from ECM/PCM A: No Sub Type Information Sets in the PAM when the PAM received invalid network data from the PCM through the GWM for 5 seconds or longer.
PAM U0402:00 Invalid Data Received from TCM: No Sub Type Information Sets in the PAM when the PAM received invalid network data from the PCM through the GWM for 5 seconds or longer.

Possible Sources

  • Communication concern
  • PAM
  • GWM
  • PCM
S1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to S2
No Clear the DTC . The system is operating normally at this time. The DTC may have been set due to high network traffic, or an intermittent fault condition.

S2 VERIFY THE DIAGNOSTIC SCAN TOOL COMMUNICATES WITH THE PCM (POWERTRAIN CONTROL MODULE)
  • Connect the diagnostic scan tool.
  • Check that a vehicle session can be established using the diagnostic scan tool.

Can a vehicle session be established?
Yes GO to S3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

S3 CHECK THE PAM (PARKING ASSIST CONTROL MODULE) CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, perform the PAM self-test.
  • Clear the Diagnostic Trouble Codes (DTCs).
  • Wait 10 seconds.
  • Repeat the PAM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs). REFER to DTC Chart: PAM , in this section.
No GO to S4

S4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).
No GO to S5

S5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes For the 2.0L EcoBoost,
REFER to: Electronic Engine Controls (303-14B Electronic Engine Controls - 2.0L EcoBoost (184kW/250PS) – MI4, Diagnosis and Testing). For the 2.7L EcoBoost,
REFER to: Electronic Engine Controls (303-14C Electronic Engine Controls - 2.7L EcoBoost (238kW/324PS), Diagnosis and Testing).
No GO to S6

S6 RECHECK THE PAM (PARKING ASSIST CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, perform the continuous memory self-test.
  • Check the PAM Diagnostic Trouble Codes (DTCs).

Is DTC U0100:00, U0101:00, U401:00 or U0402:00 present?
Yes GO to S7
No The system is operating correctly at this time. The DTC may have set due to high network traffic, or an intermittent fault condition.

S7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI , or the PMI may not have been carried out.

  • CHECK the vehicle service history for recent service actions related to the PCM or PAM . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into customer vehicle
      • return the swapped module to source vehicle and obtain new replacement module
      • if a new replacement module is installed, PERFORM PMI using as-built data
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom present?
Yes GO to S8
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures, or incorrect module configuration.

S8 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the PCM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the PCM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern,
   Click here to access Guided Routine (PCM).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST T: U0121:00 OR U0415:00

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module 'A': No Sub Type Information Sets in continuous memory in the PAM if data messages received from the ABS module are missing for 5 seconds or longer.
PAM U0415:00 Invalid Data Received from Anti-Lock Brake System (ABS) Control Module 'A': No Sub Type Information Sets in the PAM when the PAM received invalid network data from the ABS module through the GWM for 5 seconds or longer.

Possible Sources

  • Communication concern
  • ABS module
  • PAM
T1 VERIFY THE CUSTOMER CONCERN
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to T2
No Clear the DTC . The system is operating normally at this time. The DTC may have been set due to high network traffic, or an intermittent fault condition.

T2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform the network test.

Does the ABS module pass the network test?
Yes GO to T3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

T3 PERFORM THE PAM (PARKING ASSIST CONTROL MODULE) CONTROL MODULE SELF-TEST
  • Using a diagnostic scan tool, perform the PAM module self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the DTC Chart: PAM in this section.
No GO to T4

T4 PERFORM THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE SELF-TEST
  • Using a diagnostic scan tool, perform the ABS module self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Anti-Lock Brake System (ABS) and Stability Control (206-09 Anti-Lock Brake System (ABS) and Stability Control, Diagnosis and Testing).
No GO to T5

T5 RECHECK THE PAM (PARKING ASSIST CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, perform the PAM continuous memory self-test.
  • Check the PAM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Is DTC U0121:00 or U0415:00 present?
Yes GO to T6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic, or an intermittent fault condition.

T6 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI , or the PMI may not have been carried out.

  • CHECK the vehicle service history for recent service actions related to the ABS module or PAM . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into customer vehicle
      • return the swapped module to source vehicle and obtain new replacement module
      • if a new replacement module is installed, PERFORM PMI using as-built data
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to T7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

T7 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATION
  • Ignition OFF.
  • Disconnect and inspect all ABS module connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the ABS module connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ABS module.
REFER to: Anti-Lock Brake System (ABS) Module (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal and Installation).
No The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST U: U0131:00 OR U0420:00

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM U0131:00 Lost Communication With Power Steering Control Module 'A': No Sub Type Information Sets in continuous memory in the PAM if data messages received from the PSCM are missing for 5 seconds or longer.
PAM U0420:00 Invalid Data Received from Power Steering Control Module 'A': No Sub Type Information Sets in the PAM when the PAM received invalid network data from the PSCM through the GWM for 5 seconds or longer.

Possible Sources

  • Communication concern
  • PSCM
  • PAM
U1 VERIFY THE CUSTOMER CONCERN
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to U2
No Clear the DTC . The system is operating normally at this time. The DTC may have been set due to high network traffic, or an intermittent fault condition.

U2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform the network test.

Does the PSCM pass the network test?
Yes GO to U3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

U3 PERFORM THE PAM (PARKING ASSIST CONTROL MODULE) CONTROL MODULE SELF-TEST
  • Using a diagnostic scan tool, perform the PAM module self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the DTC Chart: PAM in this section.
No GO to U4

U4 PERFORM THE PSCM (POWER STEERING CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PSCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Power Steering (211-02 Power Steering, Diagnosis and Testing).
No GO to U5

U5 RECHECK THE PAM (PARKING ASSIST CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, perform the PAM continuous memory self-test.
  • Check the PAM Diagnostic Trouble Codes (CMDTCs).

Is DTC U0131:00 or U0420:00 present?
Yes GO to U6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic, or an intermittent fault condition.

U6 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI , or the PMI may not have been carried out.

  • CHECK the vehicle service history for recent service actions related to the PSCM or PAM . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into customer vehicle
      • return the swapped module to source vehicle and obtain new replacement module
      • if a new replacement module is installed, PERFORM PMI using as-built data
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to U7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

U7 CHECK FOR CORRECT PSCM (POWER STEERING CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all PSCM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the PSCM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PSCM .
REFER to: Steering Gear (211-02 Power Steering, Removal and Installation).
No The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST V: U0140:00 OR U0422:00

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM U0140:00 Lost Communication With Body Control Module: No Sub Type Information Sets in continuous memory in the PAM if data messages received from the BCM through the GWM are missing for 5 seconds or longer.
PAM U0422:00 Invalid Data Received From Body Control Module: No Sub Type Information Sets in the PAM when the PAM received invalid network data from the BCM through the GWM for 5 seconds or longer.

Possible Sources

  • Communication concern
  • GWM concern
  • BCM
  • PAM
V1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to V2
No CLEAR the DTC . The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

V2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform the network test.

Does the BCM pass the network test?
Yes GO to V3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

V3 PERFORM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PAM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to DTC Chart: PAM in this section.
No GO to V4

V4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).
No GO to V5

V5 PERFORM THE BCM (BODY CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the BCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).
No GO to V6

V6 RECHECK THE PAM (PARKING ASSIST CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, perform the continuous memory self-test.
  • Check the PAM Diagnostic Trouble Codes (DTCs).

Is DTC U0140:00 OR U0422:00 present?
Yes GO to V7
No The system is operating correctly at this time. The DTC may have been set due to high network traffic, or an intermittent fault condition.

V7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI , or the PMI may not have been carried out.

  • CHECK the vehicle service history for recent service actions related to the BCM or PAM . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into customer vehicle
      • return the swapped module to source vehicle and obtain new replacement module
      • if a new replacement module is installed, PERFORM PMI using as-built data
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to V8
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

V8 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the BCM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the BCM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new BCM .
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST W: U0146:00

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM U0146:00 Lost Communication With Serial Data Gateway 'A': No Sub Type Information Sets in continuous memory in the PAM if data messages received from the GWM are missing for 5 seconds or longer.

Possible Sources

  • Communication concern
  • GWM
  • PAM
W1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to W2
No CLEAR the DTC . The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

W2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform the network test.

Does the GWM pass the network test?
Yes GO to W3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

W3 PERFORM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to DTC Chart: PAM in this section.
No GO to W4

W4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, perform the GWM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).
No GO to W5

W5 RECHECK THE PAM (PARKING ASSIST CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, perform the continuous memory self-test.
  • Check the PAM Diagnostic Trouble Codes (DTCs).

Is DTC U0146:00 present?
Yes GO to W6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic, or an intermittent fault condition.

W6 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI , or the PMI may not have been carried out.

  • CHECK the vehicle service history for recent service actions related to the GWM or PAM . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into customer vehicle
      • return the swapped module to source vehicle and obtain new replacement module
      • if a new replacement module is installed, PERFORM PMI using as-built data
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to W7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

W7 CHECK FOR CORRECT GWM (GATEWAY MODULE A) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the GWM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the GWM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new GWM .
REFER to: Gateway Module A (GWM) (418-00A Controller Area Network (CAN) Module Communications Network, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST X: U0155:00 OR U0423:82

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information Sets in continuous memory in the PAM if data messages received from the IPC through the GWM are missing for 5 seconds or longer.
PAM U0423:82 Invalid Data Received from Instrument Panel Cluster Control Module: Alive/Sequence Counter Incorrect/Not Updated Sets in the PAM when the PAM does not receive updated parking aid data from the IPC for 5 seconds or longer.

Possible Sources

  • Communication concern
  • GWM concern
  • IPC
  • PAM
X1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to X2
No CLEAR the DTC . The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

X2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform the network test.

Does the IPC pass the network test?
Yes GO to X3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

X3 PERFORM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PAM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to DTC Chart: PAM in this section.
No GO to X4

X4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).
No GO to X5

X5 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST
  • Using a diagnostic scan tool, perform the IPC self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Instrumentation, Message Center and Warning Chimes (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing).
No GO to X6

X6 RECHECK THE PAM (PARKING ASSIST CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, perform the continuous memory self-test.
  • Check the PAM Diagnostic Trouble Codes (DTCs).

Is DTC U0155:00 or U0423:82 present?
Yes GO to X7
No The system is operating correctly at this time. The DTC may have been set due to high network traffic, or an intermittent fault condition.

X7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI , or the PMI may not have been carried out.

  • CHECK the vehicle service history for recent service actions related to the IPC or PAM . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into customer vehicle
      • return the swapped module to source vehicle and obtain new replacement module
      • if a new replacement module is installed, PERFORM PMI using as-built data
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to X8
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

X8 CHECK FOR CORRECT IPC (INSTRUMENT PANEL CLUSTER) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the IPC connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the IPC connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new IPC .
REFER to: Instrument Panel Cluster (IPC) (413-01 Instrumentation, Message Center and Warning Chimes, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST Y: U0164:00, U0424:00 OR U0424:82

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM U0164:00 Lost Communication With HVAC Control Module: No Sub Type Information Sets in continuous memory in the PAM if data messages received from the HVAC module through the GWM are missing for 5 seconds or longer.
PAM U0424:00 Invalid Data Received From HVAC Control Module: No Sub Type Information Sets in the PAM when the PAM received invalid network data for the outside air temperature from the HVAC module through the GWM for 5 seconds or longer.
PAM U0424:82 Invalid Data Received From HVAC Control Module: Alive/Sequence Counter Incorrect/Not Updated Sets in the PAM when the PAM does not receive updated outside air temperature data from the HVAC module for 5 seconds or longer.

Possible Sources

  • Communication concern
  • GWM concern
  • HVAC module
  • PAM
Y1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to Y2
No CLEAR the DTC . The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

Y2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform the network test.

Does the HVAC module pass the network test?
Yes GO to Y3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

Y3 PERFORM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PAM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to DTC Chart: PAM in this section.
No GO to Y4

Y4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).
No GO to Y5

Y5 PERFORM THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE SELF-TEST
  • Using a diagnostic scan tool, perform the HVAC module self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Climate Control System (412-00 Climate Control System - General Information, Diagnosis and Testing).
No GO to Y6

Y6 RECHECK THE PAM (PARKING ASSIST CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, perform the continuous memory self-test.
  • Check the PAM Diagnostic Trouble Codes (DTCs).

Is DTC U0164:00, U0424:00 or U0424:82 present?
Yes GO to Y7
No The system is operating correctly at this time. The DTC may have been set due to high network traffic, or an intermittent fault condition.

Y7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI , or the PMI may not have been carried out.

  • CHECK the vehicle service history for recent service actions related to the HVAC module or PAM . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into customer vehicle
      • return the swapped module to source vehicle and obtain new replacement module
      • if a new replacement module is installed, PERFORM PMI using as-built data
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to Y8
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

Y8 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE OPERATION
  • Ignition OFF.
  • Disconnect and inspect the HVAC module connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the HVAC module connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new HVAC module.
REFER to: Heating, Ventilation and Air Conditioning (HVAC) Control Module (412-00 Climate Control System - General Information, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST Z: U0485:82

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM U0485:82 Invalid Data Received From Radio: Alive/Sequence Counter Incorrect/Not Updated Sets in the PAM when the PAM does not receive data from the ACM for 5 seconds or longer.

Possible Sources

  • Communication concern
  • GWM concern
  • ACM
  • PAM
Z1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to Z2
No CLEAR the DTC . The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

Z2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform the network test.

Does the ACM pass the network test?
Yes GO to Z3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

Z3 PERFORM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PAM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs). REFER to DTC Chart: PAM , in this section.
No GO to Z4

Z4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).
No GO to Z5

Z5 PERFORM THE ACM (AUDIO FRONT CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the APIM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Information and Entertainment System (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Diagnosis and Testing).
No GO to Z6

Z6 RECHECK THE PAM (PARKING ASSIST CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, perform the continuous memory self-test.
  • Check the PAM Diagnostic Trouble Codes (DTCs).

Is DTC U0485:82 present?
Yes GO to Z7
No The system is operating correctly at this time. The DTC may have been set due to high network traffic, or an intermittent fault condition.

Z7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI , or the PMI may not have been carried out.

  • CHECK the vehicle service history for recent service actions related to the ACM , GWM or PAM . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into customer vehicle
      • return the swapped module to source vehicle and obtain new replacement module
      • if a new replacement module is installed, PERFORM PMI using as-built data
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to Z8
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

Z8 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the ACM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AA: U0212:00

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM U0212:00 Lost Communication With Steering Column Control Module: No Sub Type Information Sets in continuous memory in the PAM if data messages received from the SCCM through the GWM are missing for 5 seconds or longer.

Possible Sources

  • Communication concern
  • SCCM
  • PAM
AA1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to AA2
No CLEAR the DTC . The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AA2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform the network test.

Does the SCCM pass the network test?
Yes GO to AA3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

AA3 PERFORM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PAM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to DTC Chart: PAM in this section.
No GO to AA4

AA4 PERFORM THE SCCM (STEERING COLUMN CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the SCCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Steering Wheel and Column Electrical Components (211-05 Steering Wheel and Column Electrical Components, Diagnosis and Testing).
No GO to AA5

AA5 RECHECK THE PAM (PARKING ASSIST CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, perform the continuous memory self-test.
  • Check the PAM Diagnostic Trouble Codes (DTCs).

Is DTC U0212:00 present?
Yes GO to AA6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic, or an intermittent fault condition.

AA6 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI , or the PMI may not have been carried out.

  • CHECK the vehicle service history for recent service actions related to the SCCM or PAM . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into customer vehicle
      • return the swapped module to source vehicle and obtain new replacement module
      • if a new replacement module is installed, PERFORM PMI using as-built data
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AA7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AA7 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the SCCM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the SCCM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCCM . For vehicles without adaptive steering
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
For vehicles with adaptive steering, REFER to: Steering Column Control Module (SCCM) - Vehicles With: Adaptive Steering (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AB: U0252:00 OR U0553:82

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM U0252:00 Lost Communication With Lighting Control Module- Rear 'B': No Sub Type Information Sets in continuous memory in the PAM if data messages received from the TRM through the GWM are missing for 5 seconds or longer.
PAM U0553:82 Invalid Data Received From Lighting Control Module-Rear 'B': Alive/Sequence Counter Incorrect/Not Updated Sets in the PAM when the PAM does not receive updated trailer tow present data from the TRM for 5 seconds or longer.

Possible Sources

  • Network comunication concern
  • GWM concern
  • TRM
  • PAM
AB1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to AB2
No CLEAR the DTC . The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AB2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform the network test.

Does the TRM pass the network test?
Yes GO to AB3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

AB3 PERFORM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PAM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs). REFER to DTC Chart: PAM , in this section.
No GO to AB4

AB4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).
No GO to AB5

AB5 PERFORM THE TRM (TRAILER MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the TRM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Trailer Lamps (417-01 Exterior Lighting, Diagnosis and Testing).
No GO to AB6

AB6 RECHECK THE PAM (PARKING ASSIST CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, perform the continuous memory self-test.
  • Check the PAM Diagnostic Trouble Codes (DTCs).

Is DTC U0252:00 or U0553:82 present?
Yes GO to AB7
No The system is operating correctly at this time. The DTC may have been set due to high network traffic, or an intermittent fault condition.

AB7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI , or the PMI may not have been carried out.

  • CHECK the vehicle service history for recent service actions related to the TRM , GWM or PAM . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into customer vehicle
      • return the swapped module to source vehicle and obtain new replacement module
      • if a new replacement module is installed, PERFORM PMI using as-built data
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AB8
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AB8 CHECK FOR CORRECT TRM (TRAILER MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the TRM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the TRM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TRM .
REFER to: Trailer Module (TRM) (417-01 Exterior Lighting, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AC: U055E:82

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM U055E:82 Invalid Data Received From Front Controls Interface Module 'B': Alive/Sequence Counter Incorrect/Not Updated Sets in the PAM when the PAM does not receive updated data from the FCIMB for 5 seconds or longer.

Possible Sources

  • Communication concern
  • GWM concern
  • FCIMB
  • PAM
AC1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to AC2
No CLEAR the DTC . The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AC2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform the network test.

Does the FCIMB pass the network test?
Yes GO to AC3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

AC3 PERFORM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PAM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to DTC Chart: PAM in this section.
No GO to AC4

AC4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).
No GO to AC5

AC5 PERFORM THE FCIMB (FRONT CONTROLS INTERFACE MODULE B) SELF-TEST
  • Using a diagnostic scan tool, perform the FCIMB self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Information and Entertainment System (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Diagnosis and Testing).
No GO to AC6

AC6 RECHECK THE PAM (PARKING ASSIST CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, perform the continuous memory self-test.
  • Check the PAM Diagnostic Trouble Codes (DTCs).

Is DTC U055E:82 present?
Yes GO to AC7
No The system is operating correctly at this time. The DTC may have been set due to high network traffic, or an intermittent fault condition.

AC7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI , or the PMI may not have been carried out.

  • CHECK the vehicle service history for recent service actions related to the FCIMB or PAM . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into customer vehicle
      • return the swapped module to source vehicle and obtain new replacement module
      • if a new replacement module is installed, PERFORM PMI using as-built data
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AC8
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AC8 CHECK FOR CORRECT FCIMB (FRONT CONTROLS INTERFACE MODULE B) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the FCIMB connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new FCIMB .
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AD: U0554:00 OR U0554:82

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM U0554:00 Invalid Data Received From Accessory Protocol Interface Module: No Sub Type Information Sets in the PAM when the PAM v received invalid network data from the APIM through the GWM for 5 seconds or longer.
PAM U0554:82 Invalid Data Received From Accessory Protocol Interface Module: Alive/Sequence Counter Incorrect/Not Updated Sets in the PAM when the PAM does not receive updated from the APIM for 5 seconds or longer.

Possible Sources

  • Communication concern
  • GWM concern
  • APIM
  • PAM
AD1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to AD2
No CLEAR the DTC . The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AD2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, perform the network test.

Does the APIM pass the network test?
Yes GO to AD3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

AD3 PERFORM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the PAM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to DTC Chart: PAM in this section.
No GO to AD4

AD4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).
No GO to AD5

AD5 PERFORM THE APIM (SYNC MODULE) SELF-TEST
  • Using a diagnostic scan tool, perform the APIM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Information and Entertainment System (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Diagnosis and Testing).
No GO to AD6

AD6 RECHECK THE PAM (PARKING ASSIST CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, clear the PAM Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, perform the continuous memory self-test.
  • Check the PAM Diagnostic Trouble Codes (DTCs).

Is DTC U0554:00 or U0554:82 present?
Yes GO to AD7
No The system is operating correctly at this time. The DTC may have been set due to high network traffic, or an intermittent fault condition.

AD7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI , or the PMI may not have been carried out.

  • CHECK the vehicle service history for recent service actions related to the APIM or PAM . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into customer vehicle
      • return the swapped module to source vehicle and obtain new replacement module
      • if a new replacement module is installed, PERFORM PMI using as-built data
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AD8
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AD8 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the APIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new APIM .
REFER to: SYNC Module [APIM] (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AE: U1000:00

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM U1000:00 Solid State Driver Protection Active -Driver Disabled: No Sub Type Information Sets in the PAM when the PAM repetitive excessive current draw for the audible parking aid system.

Possible Sources

  • Wiring
  • Parking aid sensor
  • PAM
AE1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Ignition ON.
  • Using the diagnositc scan tool, clear the Diagnostic Trouble Codes (DTCs).
  • Wait 10 seconds.
  • Using the diagnostic scan tool, perform the PAM self-test.

Are any DTC other than U1000:00 retrieved?
Yes RETRIEVE and REPAIR all other PAM Diagnostic Trouble Codes (DTC). REFER to the PAM DTC chart in this section.
No GO to AE2

AE2 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the PAM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the PAM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PAM .
REFER to: Parking Assist Control Module (PAM) (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AF: U2024:00, U2100:00 OR U2101:00

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM U2024:41 Control Module Cal-Config Data: General Checksum Failure Sets in the PAM due to check sum error.
PAM U2100:00 Initial Configuration Not Complete: No Sub Type Information Sets in the PAM due to incomplete or incorrect PMI procedures.
PAM U2101:00 Control Module Configuration Incompatible: No Sub Type Information Sets in the PAM due to incomplete or incorrect PMI procedures.

Possible Sources

  • PAM
AF1 CHECK VEHICLE HISTORY FOR RECENT SERVICE ACTIONS
  • Check the vehicle history for any recent service actions related to the PAM .

Have any service actions been performed?
Yes REPEAT the PMI as directed by the diagnostic scan tool.
No GO to AF2

AF2 RECONFIGURE THE MODULE
  • Ignition ON.
  • Using the diagnositc scan tool, perform the PMI as directed by the diagnostic scan tool.
  • Verify that the PAM functions correctly.

Does the PAM functions correctly?
Yes The system is operating correctly at this time. The concner may have been caused by incomplete or incorrect PMI procedure.
No If the PAM fails to retain configuration data. INSTALL a new PAM ,
REFER to: Parking Assist Control Module (PAM) (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).

PINPOINT TEST AG: U0300:57, U3000:44, U3000:45, U3000:46 OR U3000:49

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PAM U0300:57 Internal Control Module Software Incompatibility: Invalid/Incompatible Software Component Sets in the PAM when invalid or incompatible software is detected.
PAM U3000:44 Control Module: Data Memory Failure Sets in the PAM when the PAM fails the read write check.
PAM U3000:45 Control Module: Program Memory Failure Sets in the PAM when there is a ROM memory checksum failure.
PAM U3000:46 Control Module: Calibration/Parameter Memory Failure Sets in the PAM when the PAM detects a read write failure in the EEPROM.
PAM U3000:49 Control Module: Internal Electronic Failure Sets in the PAM when module detects an internal failure.

Possible Sources

  • PAM
AG1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PAM (PARKING ASSIST CONTROL MODULE) SELF-TEST
  • Ignition ON.
  • Using the diagnositc scan tool, clear the Diagnostic Trouble Codes (DTCs).
  • Wait 10 seconds.
  • Using the diagnostic scan tool, perform the PAM self-test.

Is DTC U0300:57, U3000:44 U3000;45, U300046 or U3000:49 retrieved?
Yes INSTALL a new PAM ,
REFER to: Parking Assist Control Module (PAM) (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).
No The system is operating correctly at this time.


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