Lincoln Nautilus Manuals

Lincoln Nautilus: Wipers and Washers / Wipers and Washers. Diagnosis and Testing

DTC Chart: BCM

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).


  BCM DTC Chart


  DTC Description Action
B130F:12 Run Accessory Control: Circuit Short To Battery   GO to Pinpoint Test A
B130F:14 Run Accessory Control: Circuit Short To Ground or Open
  • If the windshield wipers are inoperative, GO to Pinpoint Test A
  • If the windshield wipers operate with the ignition off, GO to Pinpoint Test D
All other Diagnostic Trouble Codes (DTCs) -  
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).

DTC Chart: SCCM

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).


  SCCM DTC Chart


  DTC Description Action
B1008:09 Wiper Mode Switch: Component Failure
  • INSTALL a new wiper/washer switch.
    REFER to: Steering Column Multifunction Switch RH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
  • CLEAR the DTC and repeat the self-test. If DTC B1008:09 is retrieved again, INSTALL a new SCCM .
    REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
    REFER to: Steering Column Control Module (SCCM) - Vehicles With: Adaptive Steering (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
B1051:09 Front Washer Switch: Component Failure
  • INSTALL a new wiper/washer switch.
    REFER to: Steering Column Multifunction Switch RH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
  • CLEAR the DTC and repeat the self-test. If DTC B1008:09 is retrieved again, INSTALL a new SCCM .
    REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
    REFER to: Steering Column Control Module (SCCM) - Vehicles With: Adaptive Steering (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
B1052:09 Rear Washer Switch: Component Failure
  • INSTALL a new wiper/washer switch.
    REFER to: Steering Column Multifunction Switch RH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
  • CLEAR the DTC and repeat the self-test. If DTC B1008:09 is retrieved again, INSTALL a new SCCM .
    REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
    REFER to: Steering Column Control Module (SCCM) - Vehicles With: Adaptive Steering (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
B10AD:02 Rain Sensor: General Signal Failure   GO to Pinpoint Test F
B10AD:08 Rain Sensor: Bus Signal / Message Failure   GO to Pinpoint Test F
B10AD:49 Rain Sensor: Internal Electronic Failure INSTALL a new rain sensor.
REFER to: Rain Sensor (501-16 Wipers and Washers, Removal and Installation).
B10AD:55 Rain Sensor: Not Configured PERFORM the PMI for the SCCM using As-Built data.
B1131:02 Wiper motor module: General Signal Failure
  • If the wipers are inoperative, or no symptom is present, GO to Pinpoint Test A
  • If the wipers are always on, GO to Pinpoint Test D
B1131:08 Wiper motor module: Bus Signal / Message Failure   GO to Pinpoint Test B
B1131:11 Wiper motor module: Circuit Short To Ground   GO to Pinpoint Test B
B1131:49 Wiper motor module: Internal Electronic Failure INSTALL a new windshield wiper motor.
REFER to: Windshield Wiper Motor (501-16 Wipers and Washers, Removal and Installation).
B1131:9A Wiper motor module: Component or System Operating Conditions DIAGNOSE the symptom present with the wiper/washer system. REFER to the Symptom Chart in this section.
B1131:55 Wiper motor module: Not Configured CARRY OUT the PMI for the SCCM using as built data.
B12F7:09 Single Wipe Switch: Component Failure
  • INSTALL a new wiper/washer switch.
    REFER to: Steering Column Multifunction Switch RH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
  • CLEAR the DTC and repeat the self-test. If DTC B1008:09 is retrieved again, INSTALL a new SCCM .
    REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
    REFER to: Steering Column Control Module (SCCM) - Vehicles With: Adaptive Steering (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
All other Diagnostic Trouble Codes (DTCs) -  
REFER to: Steering Wheel and Column Electrical Components (211-05 Steering Wheel and Column Electrical Components, Diagnosis and Testing).

Symptom Chart

Symptom Chart: Wiper and Washer

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).


  Symptom Chart


Condition Actions
Wiper blade performance concerns - poor cleaning, streaking, or chatter
  • GO to Pinpoint Test S
All windshield wiper modes are inoperative
  • GO to Pinpoint Test A
The intermittent and/or low speed windshield wipers are inoperative
  • GO to Pinpoint Test B
The high speed windshield wipers are inoperative
  • GO to Pinpoint Test C
The windshield wipers stay on continuously
  • GO to Pinpoint Test D
The windshield wipers do not operate correctly in the intermittent mode
  • GO to Pinpoint Test E
The rain sensitive wiper feature is inoperative
  • GO to Pinpoint Test F
The rain sensitive wipers have erratic/inconsistent operation
  • GO to Pinpoint Test F
The rain sensitive wipers are too sensitive/not sensitive enough to moisture
  • GO to Pinpoint Test F
The windshield wipers do not park at the correct position
  • GO to Pinpoint Test G
The windshield washer is inoperative
  • GO to Pinpoint Test H
The windshield washer is always on
  • GO to Pinpoint Test I
One or more rear window wiper modes are inoperative
  • GO to Pinpoint Test J
The rear window wiper stays on continuously
  • GO to Pinpoint Test K
The rear window wiper does not park at the correct position
  • CHECK the rear window wiper sweep pattern and make sure it is correct.
    • If the pattern is incorrect, ADJUST the rear window wiper arm.
      REFER to: Windshield Wiper Pivot Arm (501-16 Wipers and Washers, Removal and Installation).
    • If the pattern is correct, INSTALL a new rear window wiper motor.
      REFER to: Rear Window Wiper Motor (501-16 Wipers and Washers, Removal and Installation).
The rear window washer is inoperative
  • GO to Pinpoint Test L
The rear window washer is always on
  • GO to Pinpoint Test M
One or both headlamp washers are inoperative
  • GO to Pinpoint Test N
The headlamp washers are always on
  • GO to Pinpoint Test O
The front camera washer is inoperative
  • GO to Pinpoint Test P
The heated wiper park feature is inoperative
  • GO to Pinpoint Test Q
The heated wiper park feature is always on
  • GO to Pinpoint Test R

Pinpoint Tests

All Windshield Wiper Modes Are Inoperative


Refer to Wiring Diagrams Cell 81 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Wipers and Washers - System Operation and Component Description (501-16 Wipers and Washers, Description and Operation).


  BCM DTC Fault Trigger Conditions


  DTC Description Fault Trigger Conditions
B130F:12 Run Accessory Control: Circuit Short To Battery Sets when the BCM detects a short to voltage from the wiper relay control circuit.
B130F:14 Run Accessory Control: Circuit Short To Ground or Open Sets when the BCM detects an open or short to ground from the wiper relay control circuit.

  SCCM DTC Fault Trigger Conditions


  DTC Description Fault Trigger Conditions
B1131:02 Wiper motor module: General Signal Failure Sets when the input to the windshield wiper motor from the fail-safe circuit does not match the requested input from the SCCM .

Possible Causes

  • Fuse
  • Wiring, terminals or connectors
  • BJB
  • Windshield wiper motor
  • SCCM
  • BCM

Visual Inspection and Diagnostic Pre-checks

  • Inspect BJB fuses 3 (15A) and 75 (25A) and make sure they are OK.

PINPOINT TEST A: ALL WINDSHIELD WIPER MODES ARE INOPERATIVE
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
A1 CHECK FOR BCM (BODY CONTROL MODULE) DTC (DIAGNOSTIC TROUBLE CODE) B130F:12, B130F:14 OR SCCM (STEERING COLUMN CONTROL MODULE) DTC (DIAGNOSTIC TROUBLE CODE) B1131:02
  • Ignition ON.
  • Using a diagnostic scan tool, perform the BCM self-test.
  • Using a diagnostic scan tool, perform the SCCM self-test.

Is DTC B130F:12, B130F:14 or B1131:02 present?
Yes For DTC B130F:12, GO to A2
For DTC B130F:14, GO to A4
For DTC B1131:02, GO to A11
No GO to A7

A2 CHECK THE WIPER RELAY CONTROL CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect BCM C2280C .
  • Ignition ON.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
      C2280C-24   Ground

Is any voltage present?
Yes REPAIR the circuit.
No GO to A3

A3 ISOLATE THE SHORT TO VOLTAGE IN THE WIPER RELAY CONTROL
  • Ignition OFF.
  • Disconnect BJB C1035B .
  • Measure:
    Positive Lead Measurement / Action Negative Lead
      C1035B-37   Ground

Is any voltage present?
Yes REPAIR the circuit.
No INSTALL a new BJB .

A4 CHECK THE WIPER RELAY CONTROL CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect BCM C2280C .
  • Disconnect BJB C1035B .
  • Measure:
    Positive Lead Measurement / Action Negative Lead
      C2280C-24   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to A5
No REPAIR the circuit.

A5 CHECK THE WIPER RELAY CONTROL CIRCUIT FOR AN OPEN
  • Disconnect BJB C1035B .
  • Measure:
    Positive Lead Measurement / Action Negative Lead
      C1035B-37   C2280C-24

Is the resistance less than 3 ohms?
Yes GO to A6
No REPAIR the circuit.

A6 CHECK BCM WIPER RELAY CONTROL CIRCUIT

NOTICE: This pinpoint test step uses a test lamp to simulate normal circuit loads. Use only a Rotunda Test Lamp (SGT27000) or 250-300mA incandescent bulb test lamp. To avoid connector terminal damage, use the Rotunda Flex Probe kit for the test lamp probe connection to the vehicle. Do not use the test lamp probe directly on any connector.

  • Ignition OFF.
  • Connect BCM C2280C .
  • Connect:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1035B-37 Positive battery terminal
  • Ignition ON.

Does the test lamp illuminate when the ignition is ON, and turn off when the ignition is OFF?
Yes INSTALL a new BJB .
No GO to A15

A7 CHECK THE INPUT TO THE SCCM (STEERING COLUMN CONTROL MODULE)
  • Using a diagnostic scan tool, view the SCCM Parameter Identifications (PIDs).
  • Using a diagnostic scan tool, view the following SCCM wiper/washer switch Parameter Identifications (PIDs):
    • WIPE_SINGLE (Single Wipe Stroke)
    • F_WASH_SW (Washer Switch (Front))
    • F_WIP_INT_D1 (Front Wiper Intermittent Data 1)
    • F_WIP_INT_D2 (Front Wiper Intermittent Data 2)
    • F_WIP_INT_D3 (Front Wiper Intermittent Data 3)
    • F_WIP_INT_D4 (Front Wiper Intermittent Data 4)
    • F_WIP_INT_D5 (Front Wiper Intermittent Data 5)
    • F_WIP_INT_D6 (Front Wiper Intermittent Data 6)
    • F_WIP_SLO_SW (Front Wiper Command Low Speed)
    • F_WIPE_FAST_SW (Front Wiper Command High Speed)
  • Cycle the wiper/washer switch from off to the high speed setting and then back to off.

Do the Parameter Identifications (PIDs) correspond correctly with each setting selection?
Yes GO to A8
No INSTALL a new wiper/washer switch.
REFER to: Steering Column Multifunction Switch RH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to A14

A8 CHECK FOR VOLTAGE TO THE WINDSHIELD WIPER MOTOR
  • Ignition OFF.
  • Disconnect Windshield Wiper Motor C1655 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1655-8   Ground

Is the voltage greater than 11 volts?
Yes GO to A11
No VERIFY the BJB fuse 75 (25A) is OK. If OK, GO to A9
If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

A9 CHECK THE WIPER RELAY VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect BJB C1035B .
  • Measure:
    Positive Lead Measurement / Action Negative Lead
      C1035B-49   C1655-8

Is the voltage greater than 11 volts?
Yes GO to A10
No REPAIR the circuit.

A10 CHECK THE WINDSHIELD WIPER MOTOR GROUND CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1655-6   Ground

Is the resistance less than 3 ohms?
Yes GO to A11
No REPAIR the circuit.

A11 CHECK THE FAIL-SAFE HIGH SPEED WIPER GROUND CIRCUIT CONTROL
  • Ignition OFF.
  • Disconnect Windshield Wiper Motor C1655 .
  • Place the wiper/washer switch to the high speed setting.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1655-1   Ground

Is the resistance less than 3 ohms?
Yes GO to A13
No GO to A12

A12 CHECK THE FAIL-SAFE HIGH SPEED WIPER GROUND CIRCUIT FOR AN OPEN

NOTE: If steps A2-A10 did not identify the cause of the concern, a double fault is present. After the fail-safe ground is diagnosed and repaired, it is necessary to check all operation modes and diagnose any symptom still present.

  • Disconnect SCCM C226A .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1655-1   C226A-2

Is the resistance less than 3 ohms?
Yes INSTALL a new wiper/washer switch.
REFER to: Steering Column Multifunction Switch RH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to A14
No REPAIR the circuit.

A13 CHECK FOR CORRECT WINDSHIELD WIPER MOTOR OPERATION
  • Disconnect and inspect the windshield wiper motor connector.
  • Repair:
    • corrosion (install new connector or terminal - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the windshield wiper motor connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new windshield wiper motor.
REFER to: Rear Window Wiper Motor (501-16 Wipers and Washers, 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.

A14 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION
  • Disconnect and inspect all 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.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new SCCM .
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
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.

A15 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all 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.

Is the concern still present?
Yes INSTALL a new BCM. Refer to the appropriate Removal and Installation procedure in Section 419-10.
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.


The Intermittent And/Or Low Speed Windshield Wipers Are Inoperative


Refer to Wiring Diagrams Cell 81 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Wipers and Washers - System Operation and Component Description (501-16 Wipers and Washers, Description and Operation).


  SCCM DTC Fault Trigger Conditions


  DTC Description Fault Trigger Conditions
B1131:08 Wiper motor module: Bus Signal / Message Failure Sets when the SCCM detects a communication fault with the windshield wiper motor over the LIN .
B1131:11 Wiper motor module: Circuit Short to Ground Sets when the SCCM detects a short to ground from the windshield wiper motor LIN circuit.

Possible Causes

  • Wiring, terminals or connectors
  • Wiper/washer switch
  • Windshield wiper motor
  • Rain sensor
  • SCCM

Visual Inspection and Diagnostic Pre-checks

  • Inspect the wiper/washer switch for damage.

PINPOINT TEST B: THE INTERMITTENT AND/OR LOW SPEED WINDSHIELD WIPERS ARE INOPERATIVE
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
NOTE: It may be necessary to disconnect and then reconnect the battery after the repair to enable the wiper operation.
B1 CHECK THE HIGH SPEED WIPER OPERATION
  • Ignition ON.
  • Place the wiper/washer switch to the high speed setting and observe the windshield wipers. Place the wiper/washer switch to the off setting.

Do the windshield wipers operate with the wiper/washer switch in the high speed setting?
Yes GO to B2
No GO to Pinpoint Test A

B2 CHECK THE LOW SPEED WIPER OPERATION
  • Place the wiper/washer switch to the low speed setting and observe the windshield wipers. Place the wiper/washer switch to the off setting.

Do the windshield wipers operate with the wiper/washer switch in the low speed setting?
Yes If not equipped with a rain sensor, GO to Pinpoint Test E
If equipped with a rain sensor, GO to Pinpoint Test F
No GO to B3

B3 CHECK THE INPUT TO THE SCCM (STEERING COLUMN CONTROL MODULE)
  • Using a diagnostic scan tool, view the SCCM Parameter Identifications (PIDs).
  • Using a diagnostic scan tool, view the SCCM F_WIP_SLO_SW PID .
  • Place the wiper/washer switch to the low speed setting.

Does the PID indicate the wiper/washer switch is in the low speed setting?
Yes If equipped with a rain sensor, GO to B4
If not equipped with a rain sensor, GO to B5
No INSTALL a new wiper/washer switch.
REFER to: Steering Column Multifunction Switch RH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to B9

B4 ISOLATE THE RAIN SENSOR
  • Ignition OFF.
  • Disconnect Rain Sensor C914 .
  • Ignition ON.
  • Place the wiper/washer switch to the low speed setting and observe the windshield wipers. Place the wiper/washer switch to the off setting.

Do the windshield wipers operate with the wiper/washer switch in the low speed setting?
Yes INSTALL a new rain sensor.
REFER to: Rain Sensor (501-16 Wipers and Washers, Removal and Installation).
No GO to B5

B5 CHECK THE LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect Windshield Wiper Motor C1655 .
  • Disconnect SCCM C226A .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1655-4   Ground

Is any voltage present?
Yes REPAIR the circuit.
No GO to B6

B6 CHECK THE LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1655-4   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to B7
No REPAIR the circuit.

B7 CHECK THE LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1655-4   C226A-8

Is the resistance less than 3 ohms?
Yes GO to B8
No REPAIR the circuit.

B8 CHECK FOR CORRECT WINDSHIELD WIPER MOTOR OPERATION
  • Disconnect and inspect the windshield wiper motor connector.
  • Repair:
    • corrosion (install new connector or terminal - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the windshield wiper motor connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new windshield wiper motor.
REFER to: Rear Window Wiper Motor (501-16 Wipers and Washers, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to B9
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.

B9 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION
  • Disconnect and inspect all the SCCM connectors.
  • Repair:
    • corrosion (install new connector or terminal - 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 Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new SCCM .
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
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 a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.


The High Speed Windshield Wipers Are Inoperative

Normal Operation and Fault Conditions


REFER to: Wipers and Washers - System Operation and Component Description (501-16 Wipers and Washers, Description and Operation).

Possible Causes

  • Windshield wiper motor
  • Wiper/washer switch
  • SCCM

PINPOINT TEST C: THE HIGH SPEED WINDSHIELD WIPERS ARE INOPERATIVE
C1 CHECK THE INPUT TO THE SCCM (STEERING COLUMN CONTROL MODULE)
  • Ignition ON.
  • Using a diagnostic scan tool, view the SCCM Parameter Identifications (PIDs).
  • Using a diagnostic scan tool, view the SCCM F_WIPE_FAST_SW PID .
  • Place the wiper/washer switch to the high speed setting.

Does the PID indicate the wiper/washer switch is in the high speed setting?
Yes INSTALL a new windshield wiper motor.
REFER to: Steering Column Multifunction Switch RH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
No INSTALL a new wiper/washer switch.
REFER to: Steering Column Multifunction Switch RH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation). TEST the system for normal operation. If the concern is still present, INSTALL a new SCCM .
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
REFER to: Steering Column Control Module (SCCM) - Vehicles With: Adaptive Steering (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).


The Windshield Wipers Stay On Continuously


Refer to Wiring Diagrams Cell 81 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Wipers and Washers - System Operation and Component Description (501-16 Wipers and Washers, Description and Operation).


  BCM DTC Fault Trigger Conditions


  DTC Description Fault Trigger Conditions
B130F:14 Run Accessory Control: Circuit Short To Ground or Open Sets when the BCM detects a short to ground from the wiper relay control circuit.

  SCCM DTC Fault Trigger Conditions


  DTC Description Fault Trigger Conditions
B1131:02 Wiper Motor Module: General Signal Failure Sets when the input to the windshield wiper motor from the fail-safe circuit does not match the requested input from the SCCM .

Possible Causes

  • Wiring, terminals or connectors
  • Wiper/washer switch
  • BJB
  • Windshield wiper motor
  • SCCM
  • BCM

Visual Inspection and Diagnostic Pre-checks

  • Inspect the wiper/washer switch for damage.

PINPOINT TEST D: THE WINDSHIELD WIPERS STAY ON CONTINUOUSLY
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
D1 CHECK THE WINDSHIELD WIPER OPERATION WITH THE IGNITION OFF
  • Ignition OFF.
  • Observe the windshield wiper operation.

Do the windshield wipers operate with the ignition off?
Yes GO to D4
No GO to D2

D2 CHECK THE WINDSHIELD WIPER OPERATION WITH THE SCCM (STEERING COLUMN CONTROL MODULE) DISCONNECTED
  • Ignition OFF.
  • Disconnect SCCM C226A .
  • Ignition ON.
  • Observe the windshield wiper operation.

Do the windshield wipers continue to operate?
Yes GO to D3
No INSTALL a new wiper/washer switch.
REFER to: Steering Column Multifunction Switch RH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to D8

D3 CHECK THE HIGH SPEED FAIL-SAFE CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect Windshield Wiper Motor C1655 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1655-1   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to D7
No REPAIR the circuit.

D4 CHECK FOR BCM (BODY CONTROL MODULE) DTC (DIAGNOSTIC TROUBLE CODE) B130F:14
  • Ignition ON.
  • Using a diagnostic scan tool, perform the BCM self-test.

Is DTC B130F:14 present?
Yes GO to D5
No GO to D6

D5 CHECK THE WIPER RELAY CONTROL CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect BCM C2280C .
  • Measure:
    Positive Lead Measurement / Action Negative Lead
      C2280C-24   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to D9
No REPAIR the circuit.

D6 CHECK THE WINDSHIELD WIPER MOTOR VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect BJB C1035B .
  • Measure:
    Positive Lead Measurement / Action Negative Lead
      C1035B-49   Ground

Is any voltage present?
Yes REPAIR the circuit.
No INSTALL a new BJB .

D7 CHECK FOR CORRECT WINDSHIELD WIPER MOTOR OPERATION
  • Disconnect and inspect the windshield wiper motor connector.
  • Repair:
    • corrosion (install new connector or terminal - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the windshield wiper motor connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new windshield wiper motor.
REFER to: Windshield Wiper Motor (501-16 Wipers and Washers, 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.

D8 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION
  • Disconnect and inspect all the SCCM connectors.
  • Repair:
    • corrosion (install new connector or terminal - 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 Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new SCCM .
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
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 a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

D9 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all the BCM connectors.
  • Repair:
    • corrosion (install new connector or terminal - 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 INSTALL a new BCM. Refer to the appropriate Removal and Installation procedure in Section 419-10.
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.


The Windshield Wipers Do Not Operate Correctly In The Intermittent Mode

Normal Operation and Fault Conditions


REFER to: Wipers and Washers - System Operation and Component Description (501-16 Wipers and Washers, Description and Operation).

Possible Causes

  • Wiper/washer switch
  • Windshield wiper motor
  • SCCM

Visual Inspection and Diagnostic Pre-checks

  • Inspect the wiper/washer switch for damage.

PINPOINT TEST E: THE WINDSHIELD WIPERS DO NOT OPERATE CORRECTLY IN THE INTERMITTENT MODE
E1 VERIFY IF THE VEHICLE IS EQUIPPED WITH A RAIN SENSOR
  • Inspect the vehicle for a rain sensor.

Is the vehicle equipped with a rain sensor?
Yes GO to E2
No GO to E3

E2 VERIFY THE RAIN SENSITIVE WIPER FEATURE IS DISABLED IN THE VEHICLE MESSAGE CENTER
  • Ignition ON.
  • Access the vehicle settings in the message center using the steering wheel controls and check the rain sensitive feature setting.

Is the rain sensitive feature enabled?
Yes DISABLE the rain sensitive feature. INFORM the customer how to disable the rain sensitive feature, activating the intermittent setting.
No GO to E3

E3 CHECK THE LOW SPEED WIPER OPERATION
  • Ignition ON.
  • Place the wiper/washer switch to the low speed setting and observe the windshield wipers. Place the wiper/washer switch to the off setting.

Do the low speed wipers operate when the low speed setting is selected?
Yes GO to E4
No GO to Pinpoint Test B

E4 CHECK THE INPUT FROM THE WIPER/WASHER SWITCH
  • Using a diagnostic scan tool, view the SCCM Parameter Identifications (PIDs).
  • Using a diagnostic scan tool, view the following SCCM wiper/washer switch Parameter Identifications (PIDs):
    • F_WIP_INT_D1 (Front Wiper Intermittent Data 1)
    • F_WIP_INT_D2 (Front Wiper Intermittent Data 2)
    • F_WIP_INT_D3 (Front Wiper Intermittent Data 3)
    • F_WIP_INT_D4 (Front Wiper Intermittent Data 4)
    • F_WIP_INT_D5 (Front Wiper Intermittent Data 5)
    • F_WIP_INT_D6 (Front Wiper Intermittent Data 6)
  • Cycle the wiper/washer switch from off through each of the intermittent settings.

Do the Parameter Identifications (PIDs) correspond correctly with each setting selection?
Yes INSTALL a new windshield wiper motor.
REFER to: Windshield Wiper Motor (501-16 Wipers and Washers, Removal and Installation).
No INSTALL a new wiper/washer switch.
REFER to: Steering Column Multifunction Switch RH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to E5

E5 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION
  • Disconnect and inspect all the SCCM connectors.
  • Repair:
    • corrosion (install new connector or terminal - 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 Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new SCCM .
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
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 a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.


The Rain Sensitive Wiper Feature Is Inoperative Or Does Not Operate Correctly


Refer to Wiring Diagrams Cell 81 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Wipers and Washers - System Operation and Component Description (501-16 Wipers and Washers, Description and Operation).


  SCCM DTC Fault Trigger Conditions


  DTC Description Fault Trigger Conditions
B10AD:02 Rain Sensor: General Signal Failure Sets when the SCCM detects a communication fault with the rain sensor.
B10AD:08 Rain Sensor: Bus Signal / Message Failure Sets when the SCCM detects a communication fault with the rain sensor.

Possible Causes

  • Fuse
  • Wiring, terminals or connectors
  • Rain sensitive feature not enabled
  • Foreign material on windshield, such as dirt, dust or bugs
  • Wiper blades
  • Windshield glass
  • Wiper/washer switch
  • Windshield wiper motor
  • Rain sensor
  • SCCM

Visual Inspection and Diagnostic Pre-checks

  • Inspect BJB Fuse 3 (15A)
  • Inspect the windshield for damage.
  • Inspect the rain sensor mounting for damage.

PINPOINT TEST F: THE RAIN SENSITIVE WIPER FEATURE IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
F1 CHECK THE REAR WIPER OPERATION
  • Ignition ON.
  • Check the operation of the rear window wiper.

Does the rear window wiper operate?
Yes GO to F2
No GO to Pinpoint Test J

F2 CHECK THE LOW SPEED WIPER OPERATION
  • Place the wiper/washer switch to the low speed setting and observe the windshield wipers. Place the wiper/washer switch to the off setting.

Do the low speed wipers operate when the low speed setting is selected?
Yes GO to F3
No GO to Pinpoint Test B

F3 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) B10AD:02 OR B10AD:08
  • Using a diagnostic scan tool, perform the SCCM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes For DTC B10AD:02 or B10AD:08, GO to F12
For all other Diagnostic Trouble Codes (DTCs), REFER to the SCCM DTC Chart in this section.
No GO to F4

F4 VERIFY THE RAIN SENSITIVE WIPER FEATURE IS ENABLED IN THE VEHICLE MESSAGE CENTER
  • Access the vehicle settings in the message center using the steering wheel controls. Check the rain sensitive feature setting.

Is the rain sensitive feature enabled?
Yes GO to F5
No ENABLE the rain sensitive feature. INFORM the customer how to enable/disable the rain sensitive feature.

F5 CHECK THE INPUT FROM THE WIPER/WASHER SWITCH
  • Using a diagnostic scan tool, monitor the following SCCM wiper/washer switch Parameter Identifications (PIDs):
    • F_WIP_INT_D1 (Front Wiper Intermittent Data 1)
    • F_WIP_INT_D2 (Front Wiper Intermittent Data 2)
    • F_WIP_INT_D3 (Front Wiper Intermittent Data 3)
    • F_WIP_INT_D4 (Front Wiper Intermittent Data 4)
    • F_WIP_INT_D5 (Front Wiper Intermittent Data 5)
    • F_WIP_INT_D6 (Front Wiper Intermittent Data 6)
  • Cycle the wiper/washer switch from off through each of the auto/intermittent sensitivity settings.

Do the Parameter Identifications (PIDs) correspond correctly with each setting selection?
Yes GO to F6
No INSTALL a new wiper/washer switch.
REFER to: Steering Column Multifunction Switch RH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation). TEST the system for normal operation. If the concern is still present, INSTALL a new SCCM .
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
REFER to: Steering Column Control Module (SCCM) - Vehicles With: Adaptive Steering (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).

F6 CHECK THE WINDSHIELD FOR DAMAGE
  • Ignition OFF.
  • Inspect the windshield glass for any cracks, pits or other visible damage around the area of the rain sensor.

Is any windshield damage present near the area of the rain sensor?
Yes INSTALL a new windshield.
REFER to: Fixed Glass (501-11 Glass, Frames and Mechanisms, General Procedures).
No GO to F7

F7 CHECK THE WINDSHIELD GLASS FOR STREAKING
  • Ignition ON.
  • Turn the wiper/washer switch to the low speed wiper setting and while applying water to the windshield surface. Observe the wipe quality, especially around the area of the rain sensor.

Is any streaking present on the windshield around the area of the rain sensor?
Yes GO to F8
No GO to F10

F8 CHECK THE WINDSHIELD WIPER BLADES FOR STREAKING
  • Ignition OFF.
  • Clean the windshield glass with glass cleaner.
  • Clean the wiper blades with isopropyl alcohol swabs. Wipe the entire length of the wiper blades.
  • Ignition ON.
  • Place the wiper/washer switch to the low speed wiper setting and while applying water to the windshield surface. Observe the wipe quality, especially around the area of the rain sensor.

Was there noticeable improvement in the wipe quality after cleaning the glass and the wiper blades?
Yes GO to F9
No INSTALL new wiper blades. GO to F9

F9 RECHECK THE RAIN SENSITIVE WIPERS OPERATION
  • Place the wiper/washer switch to the auto/intermittent 5 setting (most sensitive to moisture) while applying water on the windshield above the rain sensor.

Do the wipers operate when water is applied to the windshield surface?
Yes The system is operating correctly at this time. The concern may have been caused by poor wipe quality on the windshield around the rain sensor.
No GO to F10

F10 CHECK FOR THE PRESENCE OF THE LENS GEL
  • Ignition OFF.
  • Lightly press the rain sensor against the windshield and release the rain sensor clips.

Does the rain sensor remain adhered to the windshield?
Yes ATTACH the retaining clips. GO to F11
No The sensor gel-type lens is missing or damaged. INSTALL a new rain sensor.
REFER to: Rain Sensor (501-16 Wipers and Washers, Removal and Installation).

F11 INSPECT THE RAIN SENSOR MOUNTING AREA

NOTE: The rain sensor gel-type lens can be damaged or contaminated during rain sensor removal, rain sensor bracket separation or incorrect installation.

  • From the outside of the vehicle, inspect the area of the windshield glass where the rain sensor is mounted. The rain sensor contact area should appear black, with no bubbles, air pockets or contaminants between the windshield glass and the rain sensor.

Does the rain sensor contact area appear black, with no bubbles, air pockets or contaminants between the windshield glass and the rain sensor?
Yes GO to F12
No REMOVE and INSTALL the rain sensor correctly.
REFER to: Rain Sensor (501-16 Wipers and Washers, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to F15

F12 CHECK THE RAIN SENSOR VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect Rain Sensor C914 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C914-4   Ground

Is the voltage greater than 11 volts?
Yes GO to F13
No REPAIR the circuit.

F13 CHECK THE RAIN SENSOR GROUND CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C914-6   Ground

Is the resistance less than 3 ohms?
Yes GO to F14
No REPAIR the circuit.

F14 CHECK THE LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR AN OPEN
  • Disconnect SCCM C226A .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C914-5   C226A-8

Is the resistance less than 3 ohms?
Yes GO to F16
No REPAIR the circuit.

F15 CHECK FOR CORRECT WINDSHIELD WIPER MOTOR OPERATION
  • Disconnect and inspect the windshield wiper motor connector.
  • Repair:
    • corrosion (install new connector or terminal - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the windshield wiper motor connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new windshield wiper motor.
REFER to: Windshield Wiper Motor (501-16 Wipers and Washers, 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.

F16 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION
  • Disconnect and inspect all the SCCM connectors.
  • Repair:
    • corrosion (install new connector or terminal - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect all 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 Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new SCCM .
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
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 a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.


The Windshield Wipers Do Not Park At The Correct Position

Normal Operation and Fault Conditions


REFER to: Wipers and Washers - System Operation and Component Description (501-16 Wipers and Washers, Description and Operation).

Possible Causes

  • Wiper mounting arm and pivot shaft
  • Windshield wiper motor

Visual Inspection and Diagnostic Pre-checks

  • Inspect the mounting arm and pivot shaft for damage.

PINPOINT TEST G: THE WINDSHIELD WIPERS DO NOT PARK AT THE CORRECT POSITION
G1 CHECK THE WIPER MOUNTING ARM AND PIVOT SHAFT FOR DAMAGE
  • Ignition OFF.
  • Inspect the wiper mounting arm and pivot shaft for damage.

Is the wiper mounting arm and pivot shaft OK?
Yes GO to G2
No INSTALL a new wiper mounting arm and pivot shaft.
REFER to: Windshield Wiper Pivot Arm (501-16 Wipers and Washers, Removal and Installation).

G2 CHECK THE WINDSHIELD WIPER PARK RELAY OPERATION
  • Ignition ON.
  • Place the wiper/washer switch to the low speed setting. When the wiper blades are in the middle of a wipe, place the wiper/washer switch off.

Do the windshield wipers immediately stop when the wiper/washer switch is turned off?
Yes GO to G3
No ADJUST the pivot arms.
REFER to: Windshield Wiper Pivot Arm (501-16 Wipers and Washers, Removal and Installation).

G3 CHECK FOR CORRECT WINDSHIELD WIPER MOTOR OPERATION
  • Disconnect and inspect the windshield wiper motor connector.
  • Repair:
    • corrosion (install new connector or terminal - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the windshield wiper motor connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new windshield wiper motor.
REFER to: Windshield Wiper Motor (501-16 Wipers and Washers, 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.


The Windshield Washer Is Inoperative


Refer to Wiring Diagrams Cell 81 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Wipers and Washers - System Operation and Component Description (501-16 Wipers and Washers, Description and Operation).

Possible Sources

  • Wiring, terminals or connectors
  • Washer pump
  • Wiper/washer switch
  • Windshield wiper motor
  • BJB
  • SCCM

Visual Inspection and Diagnostic Pre-checks

  • Inspect the wiper/washer switch for damage.

PINPOINT TEST H: THE WINDSHIELD WASHER IS INOPERATIVE
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
H1 CHECK FOR WASHER PUMP ACTIVATION
  • Ignition ON.
  • While listening for washer pump activation near the right front of the vehicle, have an assistant activate the windshield washer function.

Does the washer pump activate?
Yes GO to H2
No GO to H6

H2 CHECK THE AMBIENT AIR TEMPERATURE
  • Check the ambient air temperature.

Is the ambient air temperature below freezing?
Yes GO to H3
No GO to H4

H3 CHECK THE WASHER SOLVENT
  • Check the washer solvent and make sure it is of the correct type to use for the temperature conditions present.

Is the correct type of washer solvent present?
Yes GO to H4
No ALLOW the vehicle to warm to room temperature. DRAIN and REFILL the windshield washer reservoir with the correct washer solvent type. INFORM the customer of the correct type of washer solvent to use for the temperature conditions present.

H4 CHECK FOR WASHER SOLVENT TO THE WASHER JETS
  • Disconnect the washer hoses from the windshield washer jets and place them in a container to capture fluid.
  • Ignition ON.
  • Momentarily activate the windshield washer function.

Is washer fluid emitted at the washer hoses?
Yes INSTALL a new washer jet in question.
No GO to H5

H5 CHECK FOR DAMAGED WASHER HOSES AND FITTINGS
  • Inspect the washer hoses and fittings for kinks or damage.

Are the washer hoses and fittings OK?
Yes INSTALL a new washer pump.
REFER to: Windshield Washer Pump (501-16 Wipers and Washers, Removal and Installation).
No REPAIR the washer hoses or fittings as necessary.

H6 CHECK THE WIPER/WASHER SWITCH INPUT USING THE WASHER SWITCH (FRONT) (F_WASH_SW) PID (PARAMETER IDENTIFICATION)
  • Ignition ON.
  • Using a diagnostic scan tool, view the SCCM Parameter Identifications (PIDs).
  • Using a diagnostic scan tool, view the SCCM PID F_WASH_SW.
  • Activate and release the wash function on the wiper/washer switch.

Does the PID indicate correctly when the switch is activated?
Yes GO to H7
No INSTALL a new wiper/washer switch.
REFER to: Steering Column Multifunction Switch RH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to H12

H7 CHECK FOR VOLTAGE TO THE WASHER PUMP

NOTICE: This pinpoint test step uses a test lamp to simulate normal circuit loads. Use only a Rotunda Test Lamp (SGT27000) or 250-300mA incandescent bulb test lamp. To avoid connector terminal damage, use the Rotunda Flex Probe kit for the test lamp probe connection to the vehicle. Do not use the test lamp probe directly on any connector.

  • Ignition OFF.
  • Disconnect Washer Pump C137 .
  • Connect:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C137-2   Ground
  • Ignition ON.
  • Use the wiper/washer switch to activate the windshield washer function.

Does the test lamp illuminate when the washer is activated?
Yes GO to H8
No GO to H9

H8 CHECK THE WASHER PUMP GROUND CIRCUIT FOR AN OPEN

NOTICE: This pinpoint test step uses a test lamp to simulate normal circuit loads. Use only a Rotunda Test Lamp (SGT27000) or 250-300mA incandescent bulb test lamp. To avoid connector terminal damage, use the Rotunda Flex Probe kit for the test lamp probe connection to the vehicle. Do not use the test lamp probe directly on any connector.

  • Connect:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C137-2   C137-1
  • Ignition ON.
  • Use the wiper/washer switch to activate the windshield washer function.

Does the test lamp illuminate when the washer is activated?
Yes INSTALL a new washer pump.
REFER to: Windshield Washer Pump (501-16 Wipers and Washers, Removal and Installation).
No REPAIR the circuit.

H9 CHECK THE WASHER PUMP VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect Windshield Wiper Motor C1655 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1655-7   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to H10
No REPAIR the circuit.

H10 CHECK THE WASHER PUMP VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1655-7   C137-2

Is the resistance less than 3 ohms?
Yes GO to H11
No REPAIR the circuit.

H11 CHECK FOR CORRECT WINDSHIELD WIPER MOTOR OPERATION
  • Repair:
    • corrosion (install new connector or terminal - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the windshield wiper motor connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new windshield wiper motor.
REFER to: Windshield Wiper Motor (501-16 Wipers and Washers, 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.

H12 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION
  • Disconnect and inspect all the SCCM connectors.
  • Repair:
    • corrosion (install new connector or terminal - 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 Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new SCCM .
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
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 a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.


The Windshield Washer is Always On


Refer to Wiring Diagrams Cell 81 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Wipers and Washers - System Operation and Component Description (501-16 Wipers and Washers, Description and Operation).

Possible Causes

  • Wiper/washer switch (without police package)
  • Windshield wiper motor
  • SCCM

Visual Inspection and Diagnostic Pre-checks

  • Inspect the wiper/washer switch for damage.

PINPOINT TEST I: THE WINDSHIELD WASHER IS ALWAYS ON
I1 CHECK THE WIPER/WASHER SWITCH INPUT USING THE WASHER SWITCH (FRONT) (F_WASH_SW) PID
  • Ignition ON.
  • Using a diagnostic scan tool, view the SCCM PID .
  • Using a diagnostic scan tool, view the SCCM wiper/washer switch PID F_WASH_SW:

Does the PID indicate the switch is activated?
Yes INSTALL a new wiper/washer switch.
REFER to: Steering Column Multifunction Switch LH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
REFER to: Steering Column Multifunction Switch RH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
TEST the system for normal operation. If the concern is still present, GO to I2
No GO to I3

I2 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION
  • Disconnect and inspect all the SCCM connectors.
  • Repair:
    • corrosion (install new connector or terminal - 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 Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new SCCM .
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
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 a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

I3 CHECK FOR CORRECT WINDSHIELD WIPER MOTOR OPERATION
  • Disconnect and inspect the windshield wiper motor connector.
  • Repair:
    • corrosion (install new connector or terminal - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the windshield wiper motor connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new windshield wiper motor.
REFER to: Windshield Wiper Motor (501-16 Wipers and Washers, 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.


One Or More Rear Window Wiper Modes Are Inoperative


Refer to Wiring Diagrams Cell 81 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Wipers and Washers - System Operation and Component Description (501-16 Wipers and Washers, Description and Operation).

Possible Causes

  • Fuse
  • Wiring, terminals or connectors
  • Washer pump
  • Wiper/washer switch
  • Rear window wiper motor
  • Windshield wiper motor
  • SCCM

Visual Inspection and Diagnostic Pre-checks

  • Inspect BJB fuse 3 (15A) and make sure it is OK.
  • Inspect the wiper/washer switch for damage.

PINPOINT TEST J: ONE OR MORE REAR WINDOW WIPER MODES ARE INOPERATIVE
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
J1 CHECK THE WINDSHIELD WIPER OPERATION
  • Ignition ON.
  • Place the wiper/washer switch to the windshield low speed position and then off.

Does the windshield wiper operate?
Yes GO to J2
No GO to Pinpoint Test B

J2 CHECK THE REAR WINDOW WIPER/WASHER SWITCH INPUT PARAMETER IDENTIFICATIONS (PIDS)
  • Ignition ON.
  • Using a diagnostic scan tool, view the SCCM Parameter Identifications (PIDs).
  • Using a diagnostic scan tool, view the following SCCM Parameter Identifications (PIDs).
    • Rear Wiper Off Switch (R_WIPE_OFF_SW)
    • Rear Wiper Delay 1 (R_WIPE_DEL1)
    • Rear Wiper Delay 2 (R_WIPE_DEL2)
  • Place the wiper/washer switch to the rear INT 1 and rear INT 2 positions, and then off.

Do the Parameter Identifications (PIDs) indicate correctly for the switch positions?
Yes VERIFY the BJB fuse 3 (15A) is OK. If OK, GO to J3
If not OK, REFER to the Wiring Diagrams manual to identify the possible cause of the circuit short.
No INSTALL a new wiper/washer switch.
REFER to: Steering Column Multifunction Switch RH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to J9

J3 CHECK FOR VOLTAGE TO THE REAR WINDOW WIPER MOTOR
  • Ignition OFF.
  • Disconnect Rear Window Wiper Motor C476 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C476-1   Ground

Is the voltage greater than 11 volts?
Yes GO to J4
No REPAIR the circuit.

J4 CHECK THE REAR WINDOW WIPER MOTOR GROUND CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C476-3   Ground

Is the resistance less than 3 ohms?
Yes GO to J5
No REPAIR the circuit.

J5 CHECK THE REAR WINDOW WIPER MOTOR CONTROL CIRCUIT FOR A SHORT TO VOLTAGE
  • Disconnect Windshield Wiper Motor C1655 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C476-2   Ground

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

J6 CHECK THE REAR WINDOW WIPER MOTOR CONTROL CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C476-2   C1655-11

Is the resistance less than 3 ohms?
Yes GO to J7
No REPAIR the circuit.

J7 BYPASS THE WINDSHIELD WIPER MOTOR
  • Connect Rear Window Wiper Motor C476 .
  • Connect:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1655-11   C1655-6
  • Ignition ON.

Does the rear window wiper motor operate?
Yes REMOVE the fused jumper wire. GO to J8
No REMOVE the fused jumper wire. INSTALL a new rear window wiper motor.
REFER to: Rear Window Wiper Motor (501-16 Wipers and Washers, Removal and Installation).

J8 CHECK FOR CORRECT WINDSHIELD WIPER MOTOR OPERATION
  • Disconnect and inspect the windshield wiper motor connector.
  • Repair:
    • corrosion (install new connector or terminal - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the windshield wiper motor connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new windshield wiper motor.
REFER to: Windshield Wiper Motor (501-16 Wipers and Washers, 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.

J9 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION
  • Disconnect and inspect all the SCCM connectors.
  • Repair:
    • corrosion (install new connector or terminal - 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 Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new SCCM .
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
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 a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.


The Rear Window Wiper Stays On Continuously


Refer to Wiring Diagrams Cell 81 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Wipers and Washers - System Operation and Component Description (501-16 Wipers and Washers, Description and Operation).

Possible Causes

  • Wiring, terminals or connectors
  • Wiper/washer switch
  • Rear window wiper motor
  • Windshield wiper motor
  • SCCM

Visual Inspection and Diagnostic Pre-checks

  • Inspect the wiper/washer switch for damage.

PINPOINT TEST K: THE REAR WINDOW WIPER STAYS ON CONTINUOUSLY
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
K1 CHECK THE REAR WINDOW WIPER/WASHER SWITCH INPUT PARAMETER IDENTIFICATIONS (PIDS)
  • Ignition ON.
  • Using a diagnostic scan tool, view the SCCM Parameter Identifications (PIDs).
  • Using a diagnostic scan tool, view the following SCCM Parameter Identifications (PIDs).
    • Rear Wiper Off Switch (R_WIPE_OFF_SW)
    • Rear Wiper Delay 1 (R_WIPE_DEL1)
    • Rear Wiper Delay 2 (R_WIPE_DEL2)
  • Place the wiper/washer switch to the rear INT 1 and rear INT 2 positions, and then off.

Do the Parameter Identifications (PIDs) indicate correctly for the switch positions?
Yes GO to K2
No INSTALL a new wiper/washer switch.
REFER to: Steering Column Multifunction Switch RH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to K5

K2 CHECK THE WINDSHIELD WIPER MOTOR
  • Ignition OFF.
  • Disconnect Windshield Wiper Motor C1655 .
  • Ignition ON.

Does the rear window wiper motor continue to operate?
Yes GO to K3
No GO to K4

K3 CHECK THE WINDSHIELD REAR WIPER CONTROL CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect Rear Window Wiper Motor C476 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C476-2   Ground

Is the resistance greater than 10,000 ohms?
Yes INSTALL a new rear window wiper motor.
REFER to: Rear Window Wiper Motor (501-16 Wipers and Washers, Removal and Installation).
No REPAIR the circuit.

K4 CHECK FOR CORRECT WINDSHIELD WIPER MOTOR OPERATION
  • Disconnect and inspect the windshield wiper motor connector.
  • Repair:
    • corrosion (install new connector or terminal - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the windshield wiper motor connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new windshield wiper motor.
REFER to: Windshield Wiper Motor (501-16 Wipers and Washers, 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.

K5 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION
  • Disconnect and inspect all the SCCM connectors.
  • Repair:
    • corrosion (install new connector or terminal - 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 Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new SCCM .
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
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 a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.


The Rear Window Washer Is Inoperative


Refer to Wiring Diagrams Cell 81 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Wipers and Washers - System Operation and Component Description (501-16 Wipers and Washers, Description and Operation).

Possible Causes

  • Fuse
  • Rear washer hose
  • Rear washer jet
  • Wiring, terminals or connectors
  • BJB
  • Washer pump
  • Wiper/washer switch
  • Windshield wiper motor
  • SCCM

Visual Inspection and Diagnostic Pre-checks

  • Inspect BJB fuse 3 (15A) and make sure it is OK.
  • Inspect the wiper/washer switch for damage.

PINPOINT TEST L: THE REAR WINDOW WASHER IS INOPERATIVE
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
L1 CHECK THE WINDSHIELD WASHER OPERATION
  • Ignition ON.
  • Activate the windshield washer and observe the windshield washer operation.

Does windshield washer operate correctly?
Yes GO to L2
No GO to Pinpoint Test H

L2 CHECK THE AMBIENT AIR TEMPERATURE
  • Check the ambient air temperature.

Is the ambient air temperature below freezing?
Yes GO to L3
No GO to L4

L3 CHECK THE WASHER SOLVENT
  • Check the washer solvent and make sure it is of the correct type to use for the temperature conditions present.

Is the correct type of washer solvent present?
Yes GO to L4
No ALLOW the vehicle to warm to room temperature. DRAIN and REFILL the windshield washer reservoir with the correct washer solvent type. INFORM the customer of the correct type of washer solvent to use for the temperature conditions present.

L4 CHECK FOR WASHER SOLVENT TO THE WASHER JET
  • Disconnect the washer hose from the rear window washer jet and place it in a container to capture fluid.
  • Momentarily activate the rear window washer.

Is washer fluid emitted at the washer hose?
Yes INSTALL a new washer jet.
No GO to L5

L5 CHECK FOR DAMAGED WASHER HOSES AND FITTINGS
  • Inspect the washer hoses and fittings for kinks or damage.

Are the washer hoses and fittings OK?
Yes GO to L6
No REPAIR the washer hoses or fittings as necessary.

L6 CHECK THE WIPER/WASHER SWITCH INPUT USING THE REAR WIPER WASH SWITCH (R_WIPE_WASH_SW) PID (PARAMETER IDENTIFICATION)
  • Ignition ON.
  • Using a diagnostic scan tool, view the SCCM Parameter Identifications (PIDs).
  • Using a diagnostic scan tool, view the SCCM R_WIPE_WASH_SW PID .
  • Activate and release the rear window wash function on the wiper/washer switch.

Does the PID indicate correctly when the switch is activated and released?
Yes GO to L7
No INSTALL a new wiper/washer switch.
REFER to: Steering Column Multifunction Switch RH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
REFER to: Steering Column Multifunction Switch LH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to L12

L7 CHECK THE WASHER PUMP RELAY COIL CIRCUIT

NOTICE: The following Pinpoint Test uses a test lamp to simulate normal circuit loads. Use only a Rotunda Test Lamp (SGT27000) or 250-300mA incandescent bulb test lamp. To avoid connector terminal damage, use the Rotunda Flex Probe kit for the test lamp probe connection to the vehicle. Do not use the test lamp probe directly on any connector.

  • Ignition OFF.
  • Disconnect Windshield Washer Pump C137 .
  • Connect:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C137-1   Ground
  • Ignition ON.
  • Have an assistant activate the rear window wash function

Does the test lamp illuminate when the rear window wash function is activated?
Yes GO to L11
No GO to L8

L8 CHECK THE WASHER PUMP RELAY COIL VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect BJB C1035B .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1035B-39   C1035B-29

Is the resistance less than 3 ohms?
Yes GO to L9
No REPAIR the circuit.

L9 CHECK THE WASHER PUMP RELAY COIL CONTROL CIRCUIT FOR A SHORT TO VOLTAGE
  • Disconnect Windshield Wiper Motor C1655 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1035B-33   Ground

Is any voltage present?
Yes REPAIR the circuit.
No GO to L10

L10 CHECK THE WASHER PUMP RELAY COIL CONTROL CIRCUIT FOR AN OPEN

NOTICE: The following Pinpoint Test uses a test lamp to simulate normal circuit loads. Use only a Rotunda Test Lamp (SGT27000) or 250-300mA incandescent bulb test lamp. To avoid connector terminal damage, use the Rotunda Flex Probe kit for the test lamp probe connection to the vehicle. Do not use the test lamp probe directly on any connector.

  • Connect Windshield Wiper Motor C1655 .
  • Connect a fused jumper wire:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1035B-49 Battery positive
  • Connect:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1035B-33 Battery positive
  • Ignition ON.
  • Have an assistant activate the rear window wash function

Does the test lamp illuminate when the rear window wash function is activated?
Yes INSTALL a new BJB .
No GO to L11

L11 CHECK FOR CORRECT WINDSHIELD WIPER MOTOR OPERATION
  • Disconnect and inspect the windshield wiper motor connector.
  • Repair:
    • corrosion (install new connector or terminal - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the windshield wiper motor connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new windshield wiper motor.
REFER to: Windshield Wiper Motor (501-16 Wipers and Washers, 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.

L12 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION
  • Disconnect and inspect all the SCCM connectors.
  • Repair:
    • corrosion (install new connector or terminal - 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 Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new SCCM .
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
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 a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.


The Rear Window Washer Is Always On


Refer to Wiring Diagrams Cell 81 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Wipers and Washers - System Operation and Component Description (501-16 Wipers and Washers, Description and Operation).

Possible Causes

  • Wiring, terminals or connectors
  • BJB relay module
  • Wiper/washer switch
  • Windshield wiper motor
  • SCCM

Visual Inspection and Diagnostic Pre-checks

  • Inspect the wiper/washer switch for damage.

PINPOINT TEST M: THE REAR WINDOW WASHER IS ALWAYS ON
M1 CHECK THE WIPER/WASHER SWITCH INPUT USING THE REAR WIPER WASH SWITCH (R_WIPE_WASH_SW) PID (PARAMETER IDENTIFICATION)
  • Ignition ON.
  • Using a diagnostic scan tool, view the SCCM Parameter Identifications (PIDs).
  • Using a diagnostic scan tool, view the SCCM R_WIPE_WASH_SW PID .
  • Activate and release the rear window wash function on the wiper/washer switch.

Does the PID indicate correctly when the switch is activated and released?
Yes GO to M2
No INSTALL a new wiper/washer switch.
REFER to: Steering Column Multifunction Switch RH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to M7

M2 CHECK THE WASHER PUMP RELAY COIL CONTROL CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect Windshield Wiper Motor C1655 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1655-12   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to M4
No GO to M3

M3 ISOLATE THE WASHER PUMP RELAY COIL CONTROL CIRCUIT SHORT TO GROUND
  • Ignition OFF.
  • Disconnect BJB C1035B .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1655-12   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to M4
No REPAIR the circuit.

M4 CHECK THE WASHER PUMP RELAY OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE
  • Disconnect Windshield Washer Pump C137 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C137-1   Ground

Is any voltage present?
Yes GO to M5
No GO to M6

M5 CHECK THE WASHER PUMP RELAY OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE IN THE BJB
  • Ignition OFF.
  • Disconnect BJB C1035B .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C137-1   Ground

Is any voltage present?
Yes REPAIR the circuit.
No INSTALL a new BJB relay module. TEST the system for normal operation. If concern is still present, INSTALL a new BJB .

M6 CHECK FOR CORRECT WINDSHIELD WIPER MOTOR OPERATION
  • Disconnect and inspect the windshield wiper motor connector.
  • Repair:
    • corrosion (install new connector or terminal - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the windshield wiper motor connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new windshield wiper motor.
REFER to: Windshield Wiper Motor (501-16 Wipers and Washers, Removal and Installation).
TEST the system for normal operation. If the concern is still present, INSTALL a new windshield wiper motor. REFER to: Windshield Wiper Motor (501-16 Wipers and Washers, 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.

M7 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION
  • Disconnect and inspect all the SCCM connectors.
  • Repair:
    • corrosion (install new connector or terminal - 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 Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new SCCM .
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
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 a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.


One Or Both Headlamp Washers Are Inoperative


Refer to Wiring Diagrams Cell 81 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Wipers and Washers - System Operation and Component Description (501-16 Wipers and Washers, Description and Operation).

Possible Causes

  • Fuse
  • Foreign debris or obstruction
  • Wiring, terminals or connectors
  • Headlamp washer relay
  • Headlamp washer jet
  • Headlamp washer pump
  • Windshield wiper motor
  • SCCM

Visual Inspection and Diagnostic Pre-checks

  • Inspect BJB fuse 64 (20A) and make sure it is OK.
  • Inspect the high pressure washer hose for kinks or damage.

PINPOINT TEST N: ONE OR BOTH HEADLAMP WASHERS ARE INOPERATIVE
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
N1 VERIFY A CONCERN IS PRESENT
  • Ignition ON.
  • Turn the headlamps on.
  • Have an assistant observe the headlamp washers.
  • Activate the windshield wash for 3 seconds.
  • Wait 5 seconds.
  • Repeat steps 4 and 5 an additional 5 times.

Do the headlamp washers activate correctly during any of the windshield wash requests?
Yes The system is operating correctly. INFORM the customer of the headlamp wash operation.
No GO to N2

N2 CHECK FOR DAMAGE, DEBRIS OR FOREIGN MATERIAL
  • Ignition OFF.
  • Inspect the area around the headlamp washers for damage, debris and foreign material that may cause an obstruction.

Is any damage, debris or foreign material present near the headlamp washers?
Yes REPAIR the damage or REMOVE the debris or foreign material.
No If an individual headlamp washer is inoperative, GO to N3
If a both headlamp washers are inoperative, VERIFY the BJB fuse 64 (20A) is OK. If OK, GO to N4
If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

N3 CHECK FOR HEADLAMP WASHER JET OBSTRUCTION
  • Remove the headlamp assembly of the corresponding inoperative headlamp washer.
    REFER to: Headlamp Assembly (417-01 Exterior Lighting, Removal and Installation).
  • Inspect the area near the headlamp washer jet for obstructions.

Is an obstruction present?
Yes REMOVE the obstruction.
No INSTALL a new headlamp washer jet.

N4 CHECK THE HEADLAMP WASHER RELAY
  • Disconnect Headlamp Washer Relay.
  • Substitute a known good relay.
  • Ignition ON.
  • Turn the headlamps on.
  • Activate the headlamp washer.

Do the headlamp washers operate?
Yes REMOVE the known good relay. INSTALL a new headlamp washer relay.
No REMOVE the known good relay. GO to N5

N5 CHECK THE HEADLAMP WASHER RELAY VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
  • Turn the headlamps off.
  • Ignition OFF.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    Washer relay, cavity 3   Ground

Are the voltages greater than 11 volts?
Yes GO to N6
No REPAIR the circuit.

N6 BYPASS THE HEADLAMP WASHER RELAY
  • Connect:
    Positive Lead Measurement / Action Negative Lead
    Washer relay, cavity 3 Washer relay, cavity 5
  • Observe the headlamp washers.
  • Remove the fused jumper wire.

Do headlamp washers operate with the fused jumper wire connected?
Yes GO to N9
No GO to N7

N7 CHECK THE HEADLAMP WASHER PUMP VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
  • Disconnect Headlamp Washer Pump C153 .
  • Connect:
    Positive Lead Measurement / Action Negative Lead
    Washer relay, cavity 3 Washer relay, cavity 5
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C153-1   Ground

Is the voltage greater than 11 volts?
Yes REMOVE the fused jumper wire. GO to N8
No REMOVE the fused jumper wire. REPAIR the circuit.

N8 CHECK THE HEADLAMP WASHER PUMP GROUND CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C153-2   C153-1

Is the voltage greater than 11 volts?
Yes INSTALL a new headlamp washer pump.
No REPAIR the circuit.

N9 CHECK THE HEADLAMP WASHER RELAY CONTROL CIRCUIT FOR A SHORT TO VOLTAGE
  • Disconnect Windshield Wiper Motor C1655 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1655-10   Ground

Is any voltage present?
Yes REPAIR the circuit.
No GO to N10

N10 CHECK THE HEADLAMP WASHER RELAY CONTROL CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect BJB C1035B .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1655-10   C1035B-22

Is the resistance less than 3 ohms?
Yes GO to N11
No REPAIR the circuit.

N11 CHECK FOR CORRECT WINDSHIELD WIPER MOTOR OPERATION
  • Disconnect and inspect the windshield wiper motor connector.
  • Repair:
    • corrosion (install new connector or terminal - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the windshield wiper motor connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new windshield wiper motor.
REFER to: Windshield Wiper Motor (501-16 Wipers and Washers, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to N12
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.

N12 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION
  • Disconnect and inspect all the SCCM connectors.
  • Repair:
    • corrosion (install new connector or terminal - 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 Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new SCCM .
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
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 a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.


The Headlamp Washers Are Always On


Refer to Wiring Diagrams Cell 81 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Wipers and Washers - System Operation and Component Description (501-16 Wipers and Washers, Description and Operation).

Possible Causes

  • Wiring, terminals or connectors
  • Headlamp washer relay
  • Windshield wiper motor

PINPOINT TEST O: THE HEADLAMP WASHERS ARE ALWAYS ON
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
O1 CHECK THE HEADLAMP WASHER PUMP VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect Headlamp Washer Relay.
  • Ignition ON.

Do the headlamp washers continue to operate?
Yes REPAIR the circuit.
No GO to O2

O2 CHECK THE HEADLAMP WASHER RELAY
  • Ignition OFF.
  • Disconnect Headlamp Washer Relay.
  • Substitute a known good relay.
  • Ignition ON.

Do the headlamp washers continue to operate?
Yes REMOVE the known good relay. GO to O3
No REMOVE the known good relay. INSTALL a new headlamp washer relay.

O3 CHECK THE HEADLAMP WASHER RELAY CONTROL CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Connect Headlamp Washer Relay.
  • Disconnect Windshield Wiper Motor C1655 .

Do the headlamp washers continue to operate?
Yes REPAIR the circuit.
No GO to O4

O4 CHECK FOR CORRECT WINDSHIELD WIPER MOTOR OPERATION
  • Disconnect and inspect the windshield wiper motor connector.
  • Repair:
    • corrosion (install new connector or terminal - clean module pins)
    • damaged or bent pins - install new terminals/pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the windshield wiper motor connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new windshield wiper motor.
REFER to: Windshield Wiper Motor (501-16 Wipers and Washers, 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.


The Front Camera Washer Is Inoperative

Normal Operation and Fault Conditions


REFER to: Wipers and Washers - System Operation and Component Description (501-16 Wipers and Washers, Description and Operation).

Possible Causes

  • Front camera washer hose or fittings
  • Front camera washer jet

Visual Inspection and Diagnostic Pre-checks

  • Inspect the front camera washer jet for damage
  • Inspect the front camera washer hose and fittings for damage

PINPOINT TEST P: THE FRONT CAMERA WASHER IS INOPERATIVE
P1 CHECK THE WINDSHIELD WASHER OPERATION
  • Ignition ON.
  • Momentarily activate the windshield washer function.

Does the windshield washer operate?
Yes GO to P2
No GO to Pinpoint Test H

P2 CHECK FOR WASHER SOLVENT TO THE FRONT CAMERA WASHER JET
  • Ignition OFF.
  • Disconnect the washer hose from the front camera washer jet and place it in a container to capture fluid.
  • Ignition ON.
  • Momentarily activate the windshield washer function.

Is washer fluid emitted at the washer hose?
Yes INSTALL a new front camera washer jet.
No REPAIR the front camera washer hoses or fittings as necessary.


The Heated Wiper Park Feature Is Inoperative


Refer to Wiring Diagrams Cell 81 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Wipers and Washers - System Operation and Component Description (501-16 Wipers and Washers, Description and Operation).

Possible Causes

  • Fuse
  • Wiring, terminals or connectors
  • Heated wiper park relay
  • BJB
  • Windshield

Visual Inspection and Diagnostic Pre-checks

  • Inspect BJB fuse 66 (15A) and make sure it is OK.

PINPOINT TEST Q: THE HEATED WIPER PARK FEATURE IS INOPERATIVE
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
NOTICE: The following Pinpoint Test uses a test lamp to simulate normal circuit loads. Use only a Rotunda Test Lamp (SGT27000) or 250-300mA incandescent bulb test lamp. To avoid connector terminal damage, use the Rotunda Flex Probe kit for the test lamp probe connection to the vehicle. Do not use the test lamp probe directly on any connector.
NOTE: The heated wiper park does not operate at ambient temperatures above 21° C (70° F). The following pinpoint test needs to be carried out when the ambient air temperature is lower than 21° C (70° F).
Q1 CHECK THE REAR WINDOW DEFROST OPERATION
  • Start the vehicle.
  • Activate the rear window defrost feature.

Does the rear window defrost operate?
Yes GO to Q2
No
REFER to: Glass, Frames and Mechanisms (501-11 Glass, Frames and Mechanisms, Diagnosis and Testing).

Q2 CHECK THE HEATED WIPER PARK RELAY COIL CONTROL CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect BJB C1035B .
  • Connect:
    Lead 1 Measurement / Action Lead 2
      C1035B-21 Battery Positive
  • Start the vehicle.
  • Activate the rear window defrost feature.

Does the test lamp illuminate when the rear window defrost is activated?
Yes GO to Q3
No REPAIR the circuit.

Q3 CHECK FOR VOLTAGE TO THE HEATED WINDSHIELD
  • Ignition OFF.
  • Connect BJB C1035B .
  • Disconnect Heated Windshield Element C1532 .
  • Connect:
    Click to display connectors
    Lead 1 Measurement / Action Lead 2
      C1532-1   Ground
  • Start the vehicle.
  • Activate the rear window defrost feature.

Does the test lamp illuminate when the rear window defrost feature is activated?
Yes GO to Q4
No GO to Q5

Q4 CHECK THE WINDSHIELD HEATED WIPER PARK GROUND CIRCUIT FOR AN OPEN
  • Connect:
    Click to display connectors
    Lead 1 Measurement / Action Lead 2
      C1532-1   C1532-2
  • Start the vehicle.
  • Activate the rear window defrost feature.

Does the test lamp illuminate when the rear window defrost feature is activated?
Yes INSTALL a new windshield.
REFER to: Fixed Glass (501-11 Glass, Frames and Mechanisms, General Procedures).
No REPAIR the circuit.

Q5 CHECK THE HEATED WIPER PARK RELAY OUTPUT CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect BJB C1035B .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1532-1   C1035B-5

Is the resistance less than 3 ohms?
Yes INSTALL a new BJB .
No REPAIR the circuit.


The Heated Wiper Park Feature Is Always On


Refer to Wiring Diagrams Cell 81 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Wipers and Washers - System Operation and Component Description (501-16 Wipers and Washers, Description and Operation).

Possible Causes

  • Wiring, terminals or connectors
  • BJB

PINPOINT TEST R: THE HEATED WIPER PARK FEATURE IS ALWAYS ON
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
R1 CHECK THE REAR WINDOW DEFROST OPERATION
  • Start the vehicle.

Is the rear window defrost active?
Yes
REFER to: Glass, Frames and Mechanisms (501-11 Glass, Frames and Mechanisms, Diagnosis and Testing).
No GO to R2

R2 CHECK THE HEATED WIPER PARK RELAY OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect BJB C1035B .

Is the heated wiper park active?
Yes REPAIR the circuit.
No INSTALL a new BJB.

PINPOINT TEST S: WIPER BLADE PERFORMANCE CONCERNS - POOR CLEANING, STREAKING, OR CHATTER

Normal Operation and Fault Conditions

Wiper blade cleaning, streaking, or chatter concerns are commonly caused by dirt, ice, debris, or other foreign material on the wiper blade(s) or glass surface. The wiper blades and glass surface should be cleaned and retested prior to replacing wiper blades for a cleaning, streaking, or chatter concern.

Possible Sources

  • Dirt, ice, debris, or other foreign material on wiper blade(s)
  • Dirt, ice, debris, or other foreign material on glass surface
  • Damage to wiper blade(s)
  • Damage to glass

Visual Inspection and Pre-checks

  • Inspect the glass surface for damage
S1 CLEAN THE WIPER BLADES AND GLASS SURFACE
  • Ignition OFF.
  • Clean the suspect wiper blade(s):
    • Wipe the suspect wiper blade(s) with a clean, lint-free cloth and windshield washer fluid (Motorcraft ZC-32M20-EG or equivalent)
  • Clean the glass surface:
    • Wipe the suspect glass surface with a clean, lint-free cloth and glass cleaner (Motorcraft ZC-23 or equivalent)
  • Ignition ON.
  • Retest the wiper system.

Is the wiper performance concern still present (poor cleaning, streaking, chatter)?
Yes INSTALL new wiper blade(s) for the blade(s) in question.
No The system is operating correctly. The concern was caused by dirt, ice, debris, or other foreign material on the wiper blade(s) or glass surface


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