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Lincoln Nautilus: Glass, Frames and Mechanisms / Glass, Frames and Mechanisms. Diagnosis and Testing

Lincoln Nautilus 2018-2024 Service Manual / Body and Paint / Body and Paint / Glass, Frames and Mechanisms / Glass, Frames and Mechanisms. Diagnosis and Testing

DTC Chart: HVAC Module

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).


  HVAC Module DTC Chart


  DTC Description Action
B1C83:12 Rear Defog Relay: Circuit Short to Battery   GO to Pinpoint Test A
B1C83:14 Rear Defog Relay: Circuit Short to Ground or Open
  • If the rear window defrost system is inoperative, GO to Pinpoint Test A
  • If the rear window defrost is always active, GO to Pinpoint Test B
All other Diagnostic Trouble Codes (DTCs) -  
REFER to: Climate Control System (412-00 Climate Control System - General Information, Diagnosis and Testing).

DTC Chart: Driver Door Module (DDM)

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).


  DDM DTC Chart


  DTC Description Action
B1088:83 LIN Bus "B": Value of Signal Protection Calculation Incorrect   GO to Pinpoint Test C
B1088:87 LIN Bus "B": Missing Message   GO to Pinpoint Test C
B117C:07 Rear Power Window Up: Mechanical Failure INITIALIZE the LH rear door window regulator motor .
REFER to: Power Door Window Initialization (501-11 Glass, Frames and Mechanisms, General Procedures).
B117C:16 Rear Power Window Up: Circuit Voltage Below Threshold   GO to Pinpoint Test F
B117C:4B Rear Power Window Up: Over Temperature WAIT 10 minutes to allow the window motor to cool. INITIALIZE the LH rear door window regulator motor.
REFER to: Power Door Window Initialization (501-11 Glass, Frames and Mechanisms, General Procedures).
VERIFY the DTC is no longer present. If the DTC returns, INSPECT the window seals, glass runs and window regulator for a binding condition. REPAIR as necessary.
B117C:92 Rear Power Window Up: Performance or Incorrect Operation INITIALIZE the LH rear door window regulator motor.
REFER to: Power Door Window Initialization (501-11 Glass, Frames and Mechanisms, General Procedures).
B117E:07 Front Power Window Up: Mechanical Failure INITIALIZE the driver door window regulator motor.
REFER to: Power Door Window Initialization (501-11 Glass, Frames and Mechanisms, General Procedures).
B117E:16 Front Power Window Up: Circuit Voltage Below Threshold   GO to Pinpoint Test C
B117E:4B Front Power Window Up: Over Temperature WAIT 10 minutes to allow the window motor to cool. INITIALIZE the driver door window regulator motor.
REFER to: Power Door Window Initialization (501-11 Glass, Frames and Mechanisms, General Procedures).
VERIFY the DTC is no longer present. If the DTC returns, INSPECT the window seals, glass runs and window regulator for a binding condition. REPAIR as necessary.
B117E:92 Front Power Window Up: Performance or Incorrect Operation INITIALIZE the driver door window regulator motor.
REFER to: Power Door Window Initialization (501-11 Glass, Frames and Mechanisms, General Procedures).
B1189:29 Front Window Position Sensor: Signal Invalid   GO to Pinpoint Test C
B118A:29 Rear Window Position Sensor: Signal Invalid   GO to Pinpoint Test F
B12C5:71 Front Window Lifter Motor Up Relay: Actuator Stuck   GO to Pinpoint Test C
B12C6:71 Rear Window Lifter Motor Up Relay: Actuator Stuck   GO to Pinpoint Test F
B12C7:71 Rear Window Lifter Motor Down Relay: Actuator Stuck   GO to Pinpoint Test F
B12C8:71 Front Window Lifter Motor Down Relay: Actuator Stuck   GO to Pinpoint Test C
B12E9:24 Rear Window Local Up/Down Switch: Signal Stuck High   GO to Pinpoint Test F
B13F0:4B Left Rear Power Window Motor: Over Temperature WAIT 10 minutes to allow the window motor to cool. INITIALIZE the LH rear door window regulator motor.
REFER to: Power Door Window Initialization (501-11 Glass, Frames and Mechanisms, General Procedures).
VERIFY the DTC is no longer present. If the DTC returns, INSPECT the window seals, glass runs and window regulator for a binding condition. REPAIR as necessary.
B13F1:4B Driver Power Window Motor: Over Temperature WAIT 10 minutes to allow the window motor to cool. INITIALIZE the driver door window regulator motor.
REFER to: Power Door Window Initialization (501-11 Glass, Frames and Mechanisms, General Procedures).
VERIFY the DTC is no longer present. If the DTC returns, INSPECT the window seals, glass runs and window regulator for a binding condition. REPAIR as necessary.
C1B14:11 Sensor Supply Voltage A: Circuit Short To Ground   GO to Pinpoint Test C
C1B14:15 Sensor Supply Voltage A: Circuit Short To Battery or Open   GO to Pinpoint Test C
U2013:24 Switch Pack: Signal Stuck High CLEAR the DTC . TEST the system for normal operation from the driver door window control switch. If any individual switches within the driver door window control switch are inoperative or the DTC returns, INSTALL a new driver door window control switch.
REFER to: Driver Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).
All other Diagnostic Trouble Codes (DTCs) -  
REFER to: Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Diagnosis and Testing).

DTC Chart: Passenger Door Module (PDM)

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).


  PDM DTC Chart


  DTC Description Action
B117C:07 Rear Power Window Up: Mechanical Failure INITIALIZE the RH rear door window regulator motor.
REFER to: Power Door Window Initialization (501-11 Glass, Frames and Mechanisms, General Procedures).
B117C:16 Rear Power Window Up: Circuit Voltage Below Threshold   GO to Pinpoint Test G
B117C:4B Rear Power Window Up: Over Temperature WAIT 10 minutes to allow the window motor to cool. INITIALIZE the RH rear door window regulator motor.
REFER to: Power Door Window Initialization (501-11 Glass, Frames and Mechanisms, General Procedures).
VERIFY the DTC is no longer present. If the DTC returns, INSPECT the window seals, glass runs and window regulator for a binding condition. REPAIR as necessary.
B117C:92 Rear Power Window Up: Performance or Incorrect Operation INITIALIZE the RH rear door window regulator motor.
REFER to: Power Door Window Initialization (501-11 Glass, Frames and Mechanisms, General Procedures).
B117E:07 Front Power Window Up: Mechanical Failure INITIALIZE the passenger door window regulator motor.
REFER to: Power Door Window Initialization (501-11 Glass, Frames and Mechanisms, General Procedures).
B117E:16 Front Power Window Up: Circuit Voltage Below Threshold   GO to Pinpoint Test D
B117E:4B Front Power Window Up: Over Temperature WAIT 10 minutes to allow the window motor to cool. INITIALIZE the passenger door window regulator motor.
REFER to: Power Door Window Initialization (501-11 Glass, Frames and Mechanisms, General Procedures).
VERIFY the DTC is no longer present. If the DTC returns, INSPECT the window seals, glass runs and window regulator for a binding condition. REPAIR as necessary.
B117E:92 Front Power Window Up: Performance or Incorrect Operation INITIALIZE the passenger door window regulator motor.
REFER to: Power Door Window Initialization (501-11 Glass, Frames and Mechanisms, General Procedures).
B1189:29 Front Window Position Sensor: Signal Invalid   GO to Pinpoint Test D
B118A:29 Rear Window Position Sensor: Signal Invalid   GO to Pinpoint Test G
B12C5:71 Front Window Lifter Motor Up Relay: Actuator Stuck   GO to Pinpoint Test D
B12C6:71 Rear Window Lifter Motor Up Relay: Actuator Stuck   GO to Pinpoint Test G
B12C7:71 Rear Window Lifter Motor Down Relay: Actuator Stuck   GO to Pinpoint Test G
B12C8:71 Front Window Lifter Motor Down Relay: Actuator Stuck   GO to Pinpoint Test D
B12E9:24 Rear Window Local Up/Down Switch: Signal Stuck High   GO to Pinpoint Test G
B13EF:4B Right Rear Power Window Motor: Over Temperature WAIT 10 minutes to allow the window motor to cool. INITIALIZE the RH rear door window regulator motor.
REFER to: Power Door Window Initialization (501-11 Glass, Frames and Mechanisms, General Procedures).
VERIFY the DTC is no longer present. If the DTC returns, INSPECT the window seals, glass runs and window regulator for a binding condition. REPAIR as necessary.
B13F2:4B Passenger Power Window Motor: Over Temperature WAIT 10 minutes to allow the window motor to cool. INITIALIZE the passenger door window regulator motor.
REFER to: Power Door Window Initialization (501-11 Glass, Frames and Mechanisms, General Procedures).
VERIFY the DTC is no longer present. If the DTC returns, INSPECT the window seals, glass runs and window regulator for a binding condition. REPAIR as necessary.
C1B14:11 Sensor Supply Voltage A: Circuit Short To Ground   GO to Pinpoint Test D
C1B14:15 Sensor Supply Voltage A: Circuit Short To Battery or Open   GO to Pinpoint Test D
U2002:24 Switch: Signal Stuck High   GO to Pinpoint Test D
All other Diagnostic Trouble Codes (DTCs) -  
REFER to: Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Diagnosis and Testing).

Symptom Chart(s)

Symptom Chart: Glass, Frames and Mechanisms

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 Possible Sources Actions
All power windows are inoperative from the driver door window control switch
  • Wiring, terminals or connectors
  • Driver door window control switch
  • DDM
  • DIAGNOSE any related DDM Diagnostic Trouble Codes (DTCs) first. REFER to the DDM DTC Chart.
  • If there are no related Diagnostic Trouble Codes (DTCs) present, INSTALL a new driver door window control switch.
    REFER to: Driver Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).
Both rear passenger power windows only operate from the master window control switch
  • Lock-out switch in the LOCK position
  • Driver door window control switch
  • DIAGNOSE any related DDM Diagnostic Trouble Codes (DTCs) first. REFER to the DDM DTC Chart.
  • If there are no related Diagnostic Trouble Codes (DTCs) present, INSTALL a new driver door window control switch.
    REFER to: Driver Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).
A single power window is inoperative/does not operate correctly -LH front
  • Refer to the Pinpoint Test
  • GO to Pinpoint Test C
A single power window is inoperative/does not operate correctly - RH front
  • Refer to the Pinpoint Test
  • GO to Pinpoint Test D
A single power window is inoperative/does not operate correctly - LH rear
  • Refer to the Pinpoint Test
  • GO to Pinpoint Test F
A single power window is inoperative/does not operate correctly - RH rear
  • Refer to the Pinpoint Test
  • GO to Pinpoint Test G
The one-touch up/down feature is inoperative
  • Refer to the Pinpoint Test
  • GO to Pinpoint Test E
The global open/close function is inoperative
  • RKE transmitter concern
  • Door window regulator motor not initialized
  • VERIFY the RKE lock/unlock function operates correctly using all of the RKE transmitters.
    REFER to: Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Diagnosis and Testing).
    to diagnose any inoperative RKE transmitter(s).
  • INITIALIZE the inoperative door window regulator motor(s).
    REFER to: Power Door Window Initialization (501-11 Glass, Frames and Mechanisms, General Procedures).
The defrost system is inoperative
  • Refer to the Pinpoint Test
  • GO to Pinpoint Test A
The defrost system does not shut off automatically
  • Refer to the Pinpoint Test
  • GO to Pinpoint Test B

Pinpoint Test(s)

The Defrost System is Inoperative


Refer to Wiring Diagrams Cell 56 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Glass, Frames and Mechanisms - System Operation and Component Description (501-11 Glass, Frames and Mechanisms, Description and Operation).


  DTC Fault Trigger Conditions


DTC Description Fault Trigger Conditions
B1C83:12 Rear Defog Relay: Circuit Short to Battery This DTC sets when the HVAC module detects a short to voltage on the rear window defrost relay control circuit.
B1C83:14 Rear Defog Relay: Circuit Short To Ground or Open This DTC sets when the HVAC module detects an open or short to ground on the rear window defrost relay control circuit.

Possible Causes

  • Fuse
  • Wiring, terminals or connectors
  • Rear window defrost grid
  • Rear window glass
  • Touchscreen
  • BJB
  • HVAC module

Visual Inspection and Diagnostic Pre-checks

  • Verify BJB fuse 68 (40A) is OK.
  • Inspect the rear window defrost grid and electrical connectors for damage.

PINPOINT TEST A: THE DEFROST SYSTEM IS INOPERATIVE
A1 CHECK THE REAR WINDOW DEFROST FUSE
  • Ignition OFF.
  • Inspect the BJB fuse 68 (40A).

Is the fuse OK?
Yes GO to A2
No REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

A2 CHECK THE REAR WINDOW DEFROST GRID VOLTAGE
  • Ignition OFF.
  • Disconnect: Heated Rear Window Element C402A.
  • Start the engine.
  • Activate the rear window defrost switch.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C402A-1   Ground

Is the voltage greater than 11 volts?
Yes GO to A3
No GO to A4

A3 CHECK THE REAR WINDOW DEFROST GRID GROUND
  • Ignition OFF.
  • Disconnect: Heated Rear Window Element C402B.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C402B-1   Ground

Is the resistance less than 3 ohms?
Yes CARRY OUT the Grid Wire Test. REFER to Grid Wire Test. REPAIR the rear window defrost grid or INSTALL a new rear window glass.
REFER to: Heated Window Grid Wire Repair (501-11 Glass, Frames and Mechanisms, General Procedures).
No REPAIR the circuit.

A4 CHECK THE REAR WINDOW DEFROST RELAY CONTROL CIRCUIT FOR VOLTAGE
  • Ignition OFF.
  • Disconnect: HVAC module C228A.
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C228A-30   Ground

Is the voltage greater than 11 volts?
Yes GO to A6
No GO to A5

A5 CHECK THE REAR WINDOW DEFROST RELAY CONTROL CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect: BJB C1035A.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C228A-30   C1035A-36

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

A6 CHECK THE REAR WINDOW DEFROST RELAY OPERATION
  • NOTE: If the jumper wire fuse fails when it is connected, refer to the Wiring Diagrams manual to identify the possible causes of the circuit short to voltage. Connect a fused jumper wire:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C228A-30   Ground
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C402A-1   Ground

Is the voltage greater than 11 volts?
Yes REMOVE the fused jumper wire. If any other features are inoperative from the touchscreen, DIAGNOSE the inoperative touchscreen.
REFER to: Information and Entertainment System (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Diagnosis and Testing).
Otherwise, GO to A8
No REMOVE the fused jumper wire. GO to A7

A7 CHECK THE REAR WINDOW DEFROST RELAY OUTPUT CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect: BJB C1035A.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1035A-4   C402A-1

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

A8 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the HVAC module connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins as necessary
    • pushed-out pins - install new pins as necessary
  • Reconnect the HVAC module connectors and all previously disconnected rear window defrost system 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 TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new HVAC module.
REFER to: Heating, Ventilation and Air Conditioning (HVAC) Control Module (412-00 Climate Control System - General Information, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.


The Defrost System Does Not Shut Off Automatically


Refer to Wiring Diagrams Cell 56 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Glass, Frames and Mechanisms - System Operation and Component Description (501-11 Glass, Frames and Mechanisms, Description and Operation).


  DTC Fault Trigger Conditions


DTC Description Fault Trigger Conditions
B1C83:14 Rear Defog Relay: Circuit Short to Ground or Open This DTC sets when the HVAC module detects a short to ground or open on the rear window defrost relay control circuit.

Possible Causes

  • Wiring, terminals or connectors
  • BJB
  • HVAC module

PINPOINT TEST B: THE DEFROST SYSTEM DOES NOT SHUT OFF AUTOMATICALLY
B1 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE OPERATION
  • Ignition OFF.
  • Disconnect: Heated Rear Window Element C402A.
  • Disconnect: HVAC module C228A.
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C402A-1   Ground

Is any voltage present?
Yes GO to B2
No GO to B4

B2 CHECK THE REAR WINDOW DEFROST RELAY CONTROL CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect: BJB C1035A.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1035A-36   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to B3
No REPAIR the circuit.

B3 CHECK THE REAR WINDOW DEFROST RELAY CONTROL CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1035A-4   Ground

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

B4 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the HVAC module connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins as necessary
    • pushed-out pins - install new pins as necessary
  • Reconnect the HVAC module connectors and all previously disconnected rear window defrost system 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 TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new HVAC module.
REFER to: Heating, Ventilation and Air Conditioning (HVAC) Control Module (412-00 Climate Control System - General Information, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.


A Single Power Window Is Inoperative/Does Not Operate Correctly - LH Front


Refer to Wiring Diagrams Cell 100 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Glass, Frames and Mechanisms - System Operation and Component Description (501-11 Glass, Frames and Mechanisms, Description and Operation).


  DTC Fault Trigger Conditions


DTC Description Fault Trigger Conditions
B1088:83 LIN Bus "B": Value of Signal Protection Calculation Incorrect This DTC sets when the DDM has received invalid data from the driver door window control switch.
B1088:87 LIN Bus "B": Missing Message This DTC sets when the DDM has lost communication from the driver door window control switch.
B117E:16 Front Power Window Up: Circuit Voltage Below Threshold This DTC sets when the DDM senses the driver window regulator motor circuit voltage is too low.
B1189:29 Front Window Position Sensor: Signal Invalid This DTC sets when the DDM detects 16 missing pulses on one of the Hall-effect sensor circuits during window movement. When this DTC is present, the front window only operates in short steps.
B12C5:71 Front Window Lifter Motor Up Relay: Actuator Stuck This DTC sets when the DDM detects the UP relay (integral to the DDM ) is stuck or a short to voltage is present in the UP window motor circuit. When this DTC is present, the front window does not operate.
B12C8:71 Front Window Lifter Motor Down Relay: Actuator Stuck This DTC sets when the DDM detects the DOWN relay (integral to the DDM ) is stuck or a short to voltage is present in the DOWN window motor circuit. When this DTC is present, the front window does not operate.
C1B14:11 Sensor Supply Voltage A: Circuit Short To Ground This DTC sets when the DDM detects a short to ground in the Hall-effect sensor power supply circuit. When this DTC is present, the front window only operates in short steps.
C1B14:15 Sensor Supply Voltage A: Circuit Short To Battery or Open This DTC sets when the DDM detects a short to voltage or open in the Hall-effect sensor power supply circuit. When this DTC is present, the front window only operates in short steps.

Possible Causes

  • Wiring, terminals or connectors
  • Window control switch
  • Window regulator motor
  • DDM

Visual Inspection and Diagnostic Pre-checks

  • Verify BCM fuse 23 (10A) is OK.

PINPOINT TEST C: A SINGLE POWER WINDOW IS INOPERATIVE/DOES NOT OPERATE CORRECTLY- LH FRONT
C1 CHECK FOR DDM (DRIVER DOOR MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, perform DDM self-test.

Are any DDM Diagnostic Trouble Codes (DTCs) present?
Yes For DTC C1B14:11, GO to C9
For DTC B1189:29 or C1B14:15, GO to C7
For DTC B117E:16, B12C5:71 or B12C8:71, GO to C3
For DTC B1087:83 or B1087:88,
REFER to: Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Diagnosis and Testing). For DTC B1088:83 and B1088:87 only (B1087:XX is not present), GO to C14
For all other Diagnostic Trouble Codes (DTCs), REFER to the DDM DTC Chart.
No If the window does not operate at all, GO to C2
If the window moves in 500ms intervals each time the switch is activated, GO to C7

C2 CHECK THE DRIVER'S FRONT WINDOW SWITCH - DRIVER'S DOOR (DF_WINDSW_DD) PID (PARAMETER IDENTIFICATION)
  • Using a diagnostic scan tool, view DDM Parameter Identifications (PIDs).
  • Monitor the DDM PID DF_WINDSW_DD while pressing and releasing the driver door window control switch in the up and down positions.

Does the PID status agree with the driver door window control switch as it is pressed and released?
Yes GO to C3
No INSTALL a new driver door window control switch.
REFER to: Driver Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).

C3 CHECK FOR A SHORT TO VOLTAGE IN THE WINDOW UP/DOWN CIRCUITS
  • Ignition OFF.
  • Disconnect: Driver Door Window Regulator Motor C518.
  • Disconnect: DDM C501A.
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C518-1   Ground
      C518-4   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to C4

C4 CHECK FOR A SHORT TO GROUND IN THE WINDOW UP/DOWN CIRCUITS
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C518-1   Ground
      C518-4   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to C5
No REPAIR the circuit in question.

C5 CHECK FOR AN OPEN IN THE WINDOW UP/DOWN CIRCUITS
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C518-1   C501A-13
      C518-4   C501A-14

Are the resistances less than 3 ohms?
Yes GO to C6
No REPAIR the circuit in question.

C6 CHECK THE DDM (DRIVER DOOR MODULE) OUTPUT

NOTICE: The following step uses a test light to simulate normal circuit loads. To avoid connector terminal damage, use the Flex Probe Kit for the test light probe connection to the vehicle. Do not use the test light probe directly on any connector.

NOTE: Because the power window motor electrical connector (Hall-effect sensor input) is disconnected, the DDM only activates the window output for approximately 500 ms then turns off.

  • Connect: DDM C501A.
  • Ignition ON.
  • Connect a test light between:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C518-1   C518-4
  • Activate the driver door window control switch in the up and down positions while observing the test light.

Does the test light momentarily illuminate when the driver door window control switch is activated in both up and down positions?
Yes INSTALL a new driver door window regulator motor.
REFER to: Front Door Window Regulator and Motor (501-11 Glass, Frames and Mechanisms, Removal and Installation).
No GO to C18

C7 CHECK THE HALL-EFFECT POWER AND RETURN CIRCUITS

NOTICE: The following step uses a test light to simulate normal circuit loads. Use only the test light recommended in the Special Tools table at the beginning of this section. To avoid connector terminal damage, use the Flex Probe Kit for the test light probe connection to the vehicle. Do not use the test light probe directly on any connector.

  • Ignition OFF.
  • Disconnect: Driver Door Window Regulator Motor C518.
  • Ignition ON.
  • Connect a test light between:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C518-3   C518-6

Does the test light illuminate?
Yes GO to C11
No GO to C8

C8 CHECK FOR AN OPEN IN THE HALL-EFFECT POWER AND RETURN CIRCUITS
  • Ignition OFF.
  • Disconnect: DDM C501A.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C518-3   C501A-16
      C518-6   C501A-22

Are the resistances less than 3 ohms?
Yes GO to C18
No REPAIR the circuit in question.

C9 CHECK THE HALL-EFFECT POWER CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect: DDM C501A.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C501A-16   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to C18
No GO to C10

C10 CHECK THE HALL-EFFECT POWER CIRCUIT FOR A SHORT TO GROUND WITH THE POWER WINDOW MOTOR DISCONNECTED
  • Disconnect: Driver Door Window Regulator Motor C518.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C501A-16   Ground

Is the resistance greater than 10,000 ohms?
Yes INSTALL a new driver door window regulator motor.
REFER to: Front Door Window Regulator and Motor (501-11 Glass, Frames and Mechanisms, Removal and Installation).
No REPAIR the circuit.

C11 CHECK FOR A SHORT TO VOLTAGE IN THE HALL-EFFECT SIGNAL CIRCUITS
  • Ignition OFF.
  • Disconnect: DDM C501A.
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C518-2   Ground
      C518-5   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to C12

C12 CHECK FOR A SHORT TO GROUND IN THE HALL-EFFECT SIGNAL CIRCUITS
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C518-2   Ground
      C518-5   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to C13
No REPAIR the circuit in question.

C13 CHECK FOR AN OPEN IN THE HALL-EFFECT SIGNAL CIRCUITS
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C518-2   C501A-21
      C518-5   C501A-11

Are the resistances less than 3 ohms?
Yes INSTALL a new driver door window regulator motor.
REFER to: Front Door Window Regulator and Motor (501-11 Glass, Frames and Mechanisms, Removal and Installation).
TEST the system for normal operation. If the concern is still present, GO to C18
No REPAIR the circuit in question.

C14 CHECK FOR VOLTAGE TO THE DRIVER DOOR WINDOW CONTROL SWITCH
  • Ignition OFF.
  • Disconnect: Driver Door Window Control Switch C535.
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C535-1   Ground

Is the voltage greater than 11 volts?
Yes GO to C15
No VERIFY the BCM fuse 23 (10A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

C15 CHECK THE DRIVER DOOR WINDOW CONTROL SWITCH GROUND CIRCUIT

NOTICE: The following step uses a test light to simulate normal circuit loads. To avoid connector terminal damage, use the Flex Probe Kit for the test light probe connection to the vehicle. Do not use the test light probe directly on any connector.

  • Ignition ON.
  • Connect a test light between:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C535-1   C535-4

Does the test light illuminate?
Yes GO to C17
No GO to C16

C16 CHECK THE DRIVER DOOR WINDOW CONTROL SWITCH GROUND CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect: DDM C501A.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C535-4   C501A-17

Is the resistance less than 3 ohms?
Yes GO to C18
No REPAIR the circuit.

C17 CHECK THE DRIVER DOOR WINDOW CONTROL SWITCH LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect: DDM C501A.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C535-3   C501A-5

Is the resistance less than 3 ohms?
Yes INSTALL a new driver door window control switch.
REFER to: Driver Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).
No REPAIR the circuit.

C18 CHECK FOR CORRECT DDM (DRIVER DOOR MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the DDM connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins as necessary
    • pushed-out pins - install new pins as necessary
  • Reconnect the DDM connectors. Make sure they seat and latch correctly.
  • Reconnect all previously disconnected connectors.
  • Ignition ON.
  • 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 TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new DDM .
REFER to: Driver Door Module (DDM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.


A Single Power Window Is Inoperative/Does Not Operate Correctly - RH Front


Refer to Wiring Diagrams Cell 100 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Glass, Frames and Mechanisms - System Operation and Component Description (501-11 Glass, Frames and Mechanisms, Description and Operation).


  DTC Fault Trigger Conditions


DTC Description Fault Trigger Conditions
B117E:16 Front Power Window Up: Circuit Voltage Below Threshold This DTC sets when the PDM senses the passenger front window regulator motor circuit voltage is too low.
B1189:29 Front Window Position Sensor: Signal Invalid This DTC sets when the PDM detects 16 missing pulses on one of the Hall-effect sensor circuits during window movement. When this DTC is present, the front window only operates in short steps.
B12C5:71 Front Window Lifter Motor Up Relay: Actuator Stuck This DTC sets when the PDM detects the UP relay (integral to the PDM ) is stuck or a short to voltage is present in the UP window motor circuit. When this DTC is present, the front window does not operate.
B12C8:71 Front Window Lifter Motor Down Relay: Actuator Stuck This DTC sets when the PDM detects the DOWN relay (integral to the PDM ) is stuck or a short to voltage is present in the DOWN window motor circuit. When this DTC is present, the front window does not operate.
C1B14:11 Sensor Supply Voltage A: Circuit Short To Ground This DTC sets when the PDM detects a short to ground in the Hall-effect sensor power supply circuit. When this DTC is present, the front window only operates in short steps.
C1B14:15 Sensor Supply Voltage A: Circuit Short To Battery or Open This DTC sets when the PDM detects a short to ground in the Hall-effect sensor power supply circuit. When this DTC is present, the front window only operates in short steps.
U2002:24 Switch: Signal Stuck High This DTC sets when the PDM detects the window control switch is stuck in the UP or DOWN position or a short to ground is present on the input circuit for greater than 10 seconds.

Possible Causes

  • Wiring, terminals or connectors
  • Window control switch
  • Window regulator motor
  • PDM

PINPOINT TEST D: A SINGLE POWER WINDOW IS INOPERATIVE/DOES NOT OPERATE CORRECTLY - RH FRONT
D1 CHECK FOR PDM (PASSENGER DOOR MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, perform PDM self-test.

Are any PDM Diagnostic Trouble Codes (DTCs) present?
Yes For DTC C1B14:11, GO to D16
For DTC B1189:29 or C1B14:15, GO to D14
For DTC B117E:16, B12C5:71 or B12C8:71, GO to D10
For DTC U2002:24, GO to D6
For all other Diagnostic Trouble Codes (DTCs), REFER to the PDM DTC Chart.
No GO to D2

D2 CHECK THE WINDOW OPERATION FROM THE PASSENGER DOOR WINDOW CONTROL SWITCH
  • Attempt to operate the RH door window from the passenger door window control switch.

Does the RH door window operate correctly from the passenger door window control switch?
Yes INSTALL a new driver door window control switch.
REFER to: Driver Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).
No If the window did not operate at all, GO to D3
If the window moves in 500ms intervals each time the switch is activated, GO to D14

D3 CHECK THE PASSENGER DOOR WINDOW CONTROL SWITCH
  • Ignition OFF.
  • Disconnect: Passenger Door Window Control Switch C604.
  • Carry out the passenger door window control switch component test.
    Refer to Wiring Diagrams Cell 149 for schematic and connector information.

Did the passenger door window control switch pass the component test?
Yes GO to D4
No INSTALL a new passenger door window control switch.
REFER to: Passenger Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).

D4 CHECK THE WINDOW CONTROL SWITCH UP/DOWN CIRCUITS
  • Ignition ON.
  • To check downward window operation, momentarily connect a fused jumper wire:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C604-3   Ground
  • To check upward window operation, momentarily connect a fused jumper wire:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C604-2   Ground

Does the window operate upward and downward when the fused jumper wire is in place?
Yes REMOVE the fused jumper wire. GO to D5
No REMOVE the fused jumper wire. GO to D9

D5 CHECK THE WINDOW CONTROL SWITCH RETURN CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect: PDM C652A.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C604-1   C652A-17

Is the resistance less than 3 ohms?
Yes GO to D21
No REPAIR the circuit.

D6 CHECK THE WINDOW CONTROL SWITCH CIRCUITS FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect: PDM C652A.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C652A-8   Ground
      C652A-9   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to D7
No GO to D8

D7 CHECK THE WINDOW CONTROL SWITCH
  • Disconnect: Passenger Door Window Control Switch C604.
  • Carry out the window control switch component test.
    Refer to Wiring Diagrams Cell 149 for schematic and connector information.

Did the passenger door window control switch pass the component test?
Yes GO to D21
No INSTALL a new passenger door window control switch.
REFER to: Passenger Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).

D8 CHECK THE WINDOW CONTROL SWITCH CIRCUITS FOR A SHORT TO GROUND WITH THE WINDOW CONTROL SWITCH DISCONNECTED
  • Disconnect: Passenger Door Window Control Switch C604.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C652A-8   Ground
      C652A-9   Ground

Are the resistances greater than 10,000 ohms?
Yes INSTALL a new passenger door window control switch.
REFER to: Passenger Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).
No REPAIR the circuit in question.

D9 CHECK THE WINDOW CONTROL SWITCH CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Disconnect: PDM C652A.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C604-2   C652A-8
      C604-3   C652A-9

Are the resistances less than 3 ohms?
Yes GO to D10
No REPAIR the circuit in question.

D10 CHECK FOR A SHORT TO VOLTAGE IN THE WINDOW UP/DOWN CIRCUITS
  • Ignition OFF.
  • Disconnect: PDM C652A (if not previously disconnected).
  • Disconnect: Passenger Door Window Regulator Motor C608.
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C608-1   Ground
      C608-4   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to D11

D11 CHECK FOR A SHORT TO GROUND IN THE WINDOW UP/DOWN CIRCUITS
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C608-1   Ground
      C608-4   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to D12
No REPAIR the circuit in question.

D12 CHECK FOR AN OPEN IN THE WINDOW UP/DOWN CIRCUITS
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C608-1   C652A-13
      C608-4   C652A-14

Are the resistances less than 3 ohms?
Yes GO to D13
No REPAIR the circuit in question.

D13 CHECK THE PDM (PASSENGER DOOR MODULE) OUTPUT

NOTICE: The following step uses a test light to simulate normal circuit loads. To avoid connector terminal damage, use the Flex Probe Kit for the test light probe connection to the vehicle. Do not use the test light probe directly on any connector.

NOTE: Because the power window motor electrical connector (Hall-effect sensor input) is disconnected, the PDM only activates the window output for approximately 500 ms then turns off.

  • Connect: PDM C652A.
  • Ignition ON.
  • Connect a test light between:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C608-1   C608-4
  • Activate the passenger door window control switch in the up and down positions while observing the test light.

Does the test light momentarily illuminate when the window control switch is activated in both up and down positions?
Yes INSTALL a new passenger door window regulator motor.
REFER to: Front Door Window Regulator and Motor (501-11 Glass, Frames and Mechanisms, Removal and Installation).
No GO to D21

D14 CHECK THE HALL-EFFECT POWER AND RETURN CIRCUITS

NOTICE: The following step uses a test light to simulate normal circuit loads. To avoid connector terminal damage, use the Flex Probe Kit for the test light probe connection to the vehicle. Do not use the test light probe directly on any connector.

  • Ignition OFF.
  • Disconnect: Passenger Door Window Regulator Motor C608.
  • Ignition ON.
  • Connect a test light between:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C608-3   C608-6

Does the test light illuminate?
Yes GO to D18
No GO to D15

D15 CHECK FOR AN OPEN IN THE HALL-EFFECT POWER AND RETURN CIRCUITS
  • Ignition OFF.
  • Disconnect: PDM C652A.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C608-3   C652A-16
      C608-6   C652A-22

Are the resistances less than 3 ohms?
Yes GO to D21
No REPAIR the circuit in question.

D16 CHECK THE HALL-EFFECT POWER CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect: PDM C652A.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C652A-16   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to D21
No GO to D17

D17 CHECK THE HALL-EFFECT POWER CIRCUIT FOR A SHORT TO GROUND WITH THE PASSENGER DOOR WINDOW REGULATOR MOTOR DISCONNECTED
  • Disconnect: Passenger Door Window Regulator Motor C608.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C652A-16   Ground

Is the resistance greater than 10,000 ohms?
Yes INSTALL a new passenger door window regulator motor.
REFER to: Front Door Window Regulator and Motor (501-11 Glass, Frames and Mechanisms, Removal and Installation).
No REPAIR the circuit.

D18 CHECK FOR A SHORT TO VOLTAGE IN THE HALL-EFFECT SIGNAL CIRCUITS
  • Ignition OFF.
  • Disconnect: PDM C652A.
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C608-2   Ground
      C608-5   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to D19

D19 CHECK FOR A SHORT TO GROUND IN THE HALL-EFFECT SIGNAL CIRCUITS
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C608-2   Ground
      C608-5   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to D20
No REPAIR the circuit in question.

D20 CHECK FOR AN OPEN IN THE HALL-EFFECT SIGNAL CIRCUITS
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C608-2   C652A-21
      C608-5   C652A-11

Are the resistances less than 3 ohms?
Yes INSTALL a new passenger door window regulator motor.
REFER to: Front Door Window Regulator and Motor (501-11 Glass, Frames and Mechanisms, Removal and Installation).
TEST the system for normal operation. If the concern is still present, GO to D21
No REPAIR the circuit in question.

D21 CHECK FOR CORRECT PDM (PASSENGER DOOR MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the PDM connectors.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins as necessary
    • pushed-out pins - install new pins as necessary
  • Reconnect the PDM connectors. Make sure they seat and latch correctly.
  • Reconnect all previously disconnected connectors.
  • Ignition ON.
  • 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 TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new PDM .
REFER to: Passenger Door Module (PDM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.


The One-Touch Up/Down Feature Is Inoperative


Refer to Wiring Diagrams Cell 100 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Glass, Frames and Mechanisms - System Operation and Component Description (501-11 Glass, Frames and Mechanisms, Description and Operation).

Possible Causes

  • Window regulator motor not initialized
  • Window control switch
  • DDM
  • PDM
  • RDM

PINPOINT TEST E: THE ONE-TOUCH UP/DOWN FEATURE IS INOPERATIVE
E1 INITIALIZE THE SUSPECT POWER WINDOW
  • Carry out the initialization procedure on the suspect power window.
    REFER to: Power Door Window Initialization (501-11 Glass, Frames and Mechanisms, General Procedures).

Is the one-touch up/down feature operating correctly?
Yes The system is operating normally at this time. The window lost initialization.
No If the one-touch up/down feature is inoperative for the LH front window, INSTALL a new LH front window control switch.
REFER to: Driver Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).
Test the system for normal operation. If the concern is still present INSTALL a new DDM .
REFER to: Driver Door Module (DDM) (419-10 Multifunction Electronic Modules, Removal and Installation). If the one-touch up/down is inoperative for any passenger window when using the LH front window control switch only, INSTALL a new LH front window control switch.
REFER to: Driver Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation). If the one-touch up/down feature operates when using the LH front window control switch, but is inoperative when using the corresponding door window control switch, INSTALL a new window control switch.
REFER to: Passenger Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).
REFER to: Rear Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).


A Single Power Window Is Inoperative/Does Not Operate Correctly - LH Rear


Refer to Wiring Diagrams Cell 100 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Glass, Frames and Mechanisms - System Operation and Component Description (501-11 Glass, Frames and Mechanisms, Description and Operation).


  DTC Fault Trigger Conditions


DTC Description Fault Trigger Conditions
B117C:16 Rear Power Window Up: Circuit Voltage Below Threshold This DTC sets when the RDM senses the LH rear window regulator motor circuit voltage is too low.
B118A:29 Rear Window Position Sensor: Signal Invalid This DTC sets when the RDM detects 16 missing pulses on one of the Hall-effect sensor circuits during window movement. When this DTC is present, the rear window only operates in short steps.
B12C6:71 Rear Window Lifter Motor Up Relay: Actuator Stuck This DTC sets when the RDM detects the UP relay (integral to the RDM ) is stuck or a short to voltage is present in the UP window motor circuit. When this DTC is present, the rear window does not operate.
B12C7:71 Rear Window Lifter Motor Down Relay: Actuator Stuck This DTC sets when the RDM detects the DOWN relay (integral to the RDM ) is stuck or a short to voltage is present in the DOWN window motor circuit. When this DTC is present, the rear window does not operate.
B12E9:24 Rear Window Local Up/Down Switch: Signal Stuck High This DTC sets when the RDM detects the window control switch is stuck in the UP or DOWN position or a short to ground is present on the input circuit for greater than 10 seconds.

Possible Causes

  • Wiring, terminals or connectors
  • Window control switch
  • Window regulator motor
  • RDM

Visual Inspection and Diagnostic Pre-checks

  • Verify the lock-out switch is in the UNLOCK position.

PINPOINT TEST F: A SINGLE POWER WINDOW IS INOPERATIVE/DOES NOT OPERATE CORRECTLY - LH REAR
F1 CHECK FOR DDM (DRIVER DOOR MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, perform DDM self-test.

Are any DDM Diagnostic Trouble Codes (DTCs) present?
Yes For DTC B118A:29, GO to F11
For DTC B117C:16, B12C6:71 or B12C7:71, GO to F7
For DTC B12E9:24, GO to F4
For all other Diagnostic Trouble Codes (DTCs), REFER to the DDM DTC Chart.
No GO to F2

F2 CHECK THE WINDOW OPERATION FROM THE LH (LEFT-HAND) REAR WINDOW CONTROL SWITCH
  • Ignition ON.
  • Make sure the rear passenger window lock-out switch is in the UNLOCK position.
  • Attempt to operate the LH rear window from the rear door window control switch.

Does the LH rear window operate correctly from the rear door window control switch?
Yes INSTALL a new driver door window control switch.
REFER to: Driver Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).
No If the window did not operate at all, GO to F3
If the window moves in 500ms intervals each time the switch is activated, GO to F11

F3 CHECK THE WINDOW CONTROL SWITCH UP/DOWN CIRCUITS
  • Ignition OFF.
  • Disconnect: LH Rear Door Window Control Switch C701.
  • Ignition ON.
  • To check downward window operation, momentarily connect a fused jumper wire:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C701-3   C701-1
  • To check upward window operation, momentarily connect a fused jumper wire:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C701-2   C701-1

Does the window operate upward and downward when the fused jumper wire is in place?
Yes REMOVE the fused jumper wire. INSTALL a new rear door window control switch.
REFER to: Rear Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).
No REMOVE the fused jumper wire. GO to F6

F4 CHECK THE REAR DOOR WINDOW CONTROL SWITCH CIRCUITS FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect: LH RDM C728.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C728-11   Ground
      C728-9   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to F17
No GO to F5

F5 CHECK THE WINDOW CONTROL SWITCH CIRCUITS FOR A SHORT TO GROUND WITH THE WINDOW CONTROL SWITCH DISCONNECTED
  • Disconnect: LH Rear Door Window Control Switch C701.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C728-11   Ground
      C728-9   Ground

Are the resistances greater than 10,000 ohms?
Yes INSTALL a new rear door window control switch.
REFER to: Rear Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).
No REPAIR the circuit in question.

F6 CHECK THE REAR DOOR WINDOW CONTROL SWITCH CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Disconnect: LH RDM C728.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C701-1   C728-18
      C701-2   C728-11
      C701-3   C728-9

Are the resistances less than 3 ohms?
Yes GO to F7
No REPAIR the circuit in question.

F7 CHECK FOR A SHORT TO VOLTAGE IN THE WINDOW UP/DOWN CIRCUITS
  • Ignition OFF.
  • Disconnect: LH Rear Door Window Regulator Motor C726.
  • Disconnect: LH RDM C728.
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C726-1   Ground
      C726-4   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to F8

F8 CHECK FOR A SHORT TO GROUND IN THE WINDOW UP/DOWN CIRCUITS
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C726-1   Ground
      C726-4   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to F9
No REPAIR the circuit in question.

F9 CHECK FOR AN OPEN IN THE WINDOW UP/DOWN CIRCUITS
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C726-1   C728-14
      C726-4   C728-13

Are the resistances less than 3 ohms?
Yes GO to F10
No REPAIR the circuit in question.

F10 CHECK THE RDM (REAR DOOR MODULE) OUTPUT

NOTICE: The following step uses a test light to simulate normal circuit loads. To avoid connector terminal damage, use the Flex Probe Kit for the test light probe connection to the vehicle. Do not use the test light probe directly on any connector.

NOTE: Because the power window motor electrical connector (Hall-effect sensor input) is disconnected, the RDM only activates the window output for approximately 500 ms then turns off.

  • Ignition OFF.
  • Connect: LH Rear Door Window Control Switch C701.
  • Connect: LH RDM C728.
  • Ignition ON.
  • Connect a test light between:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C726-1   C726-4
  • Activate the rear door window control switch in the up and down positions while observing the test light.

Does the test light momentarily illuminate when the rear door window control switch is activated in both up and down positions?
Yes INSTALL a new rear door window regulator motor.
REFER to: Rear Door Window Regulator and Motor (501-11 Glass, Frames and Mechanisms, Removal and Installation).
No GO to F17

F11 CHECK THE HALL-EFFECT POWER AND RETURN CIRCUITS

NOTICE: The following step uses a test light to simulate normal circuit loads. To avoid connector terminal damage, use the Flex Probe Kit for the test light probe connection to the vehicle. Do not use the test light probe directly on any connector.

  • Ignition OFF.
  • Disconnect: LH Rear Door Window Regulator Motor C726.
  • Ignition ON.
  • Connect a test light between:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C726-3   C726-6

Does the test light illuminate?
Yes GO to F14
No GO to F12

F12 CHECK THE HALL-EFFECT POWER CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect: LH RDM C728.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C728-4   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to F13
No REPAIR the circuit.

F13 CHECK FOR AN OPEN IN THE HALL-EFFECT POWER AND RETURN CIRCUITS
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C726-3   C728-4
      C726-6   C728-17

Are the resistances less than 3 ohms?
Yes GO to F17
No REPAIR the circuit in question.

F14 CHECK FOR A SHORT TO VOLTAGE IN THE HALL-EFFECT SIGNAL CIRCUITS
  • Ignition OFF.
  • Disconnect: LH RDM C728.
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C726-2   Ground
      C726-5   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to F15

F15 CHECK FOR A SHORT TO GROUND IN THE HALL-EFFECT SIGNAL CIRCUITS
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C726-2   Ground
      C726-5   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to F16
No REPAIR the circuit in question.

F16 CHECK FOR AN OPEN IN THE HALL-EFFECT SIGNAL CIRCUITS
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C726-2   C728-7
      C726-5   C728-8

Are the resistances less than 3 ohms?
Yes INSTALL a new rear door window regulator motor.
REFER to: Rear Door Window Regulator and Motor (501-11 Glass, Frames and Mechanisms, Removal and Installation).
TEST the system for normal operation. If the concern is still present, GO to F17
No REPAIR the circuit in question.

F17 CHECK FOR CORRECT RDM (REAR DOOR MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the LH RDM connector.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins as necessary
    • pushed-out pins - install new pins as necessary
  • Reconnect the LH RDM connector. Make sure it seats and latches correctly.
  • Reconnect all previously disconnected connectors.
  • Ignition ON.
  • Make sure the rear passenger window lock-out switch is in the UNLOCK position.
  • 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 TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new RDM LH .
REFER to: Rear Door Module (RDM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.


A Single Power Window Is Inoperative/Does Not Operate Correctly - RH Rear


Refer to Wiring Diagrams Cell 100 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Glass, Frames and Mechanisms - System Operation and Component Description (501-11 Glass, Frames and Mechanisms, Description and Operation).


  DTC Fault Trigger Conditions


DTC Description Fault Trigger Conditions
B117C:16 Rear Power Window Up: Circuit Voltage Below Threshold This DTC sets when the RDM senses the RH rear window regulator motor circuit voltage is too low.
B118A:29 Rear Window Position Sensor: Signal Invalid This DTC sets when the RDM detects 16 missing pulses on one of the Hall-effect sensor circuits during window movement. When this DTC is present, the rear window only operates in short steps.
B12C6:71 Rear Window Lifter Motor Up Relay: Actuator Stuck This DTC sets when the RDM detects the UP relay (integral to the RDM ) is stuck or a short to voltage is present in the UP window motor circuit. When this DTC is present, the rear window does not operate.
B12C7:71 Rear Window Lifter Motor Down Relay: Actuator Stuck This DTC sets when the RDM detects the DOWN relay (integral to the RDM ) is stuck or a short to voltage is present in the DOWN window motor circuit. When this DTC is present, the rear window does not operate.
B12E9:24 Rear Window Local Up/Down Switch: Signal Stuck High This DTC sets when the RDM detects the window control switch is stuck in the UP or DOWN position or a short to ground is present on the input circuit for greater than 10 seconds.

Possible Causes

  • Wiring, terminals or connectors
  • Window control switch
  • Window regulator motor
  • RDM

Visual Inspection and Diagnostic Pre-checks

  • Verify the lock-out switch is in the UNLOCK position.

PINPOINT TEST G: A SINGLE POWER WINDOW IS INOPERATIVE/DOES NOT OPERATE CORRECTLY - RH REAR
G1 CHECK FOR PDM (PASSENGER DOOR MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, perform PDM self-test.

Are any PDM Diagnostic Trouble Codes (DTCs) present?
Yes For DTC B118A:29, GO to G11
For DTC B117C:16, B12C6:71 or B12C7:71, GO to G7
For DTC B12E9:24, GO to G4
For all other Diagnostic Trouble Codes (DTCs), REFER to the PDM DTC Chart.
No GO to G2

G2 CHECK THE WINDOW OPERATION FROM THE RH (RIGHT-HAND) REAR WINDOW CONTROL SWITCH
  • Ignition ON.
  • Make sure the rear passenger window lock-out switch is in the UNLOCK position.
  • Attempt to operate the RH rear door window from the rear door window control switch.

Does the RH rear door window operate correctly from the rear door window control switch?
Yes INSTALL a new driver door window control switch.
REFER to: Driver Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).
No If the window did not operate at all, GO to G3
If the window moves in 500ms intervals each time the switch is activated, GO to G11

G3 CHECK THE DOOR WINDOW CONTROL SWITCH UP/DOWN CIRCUITS
  • Ignition OFF.
  • Disconnect: RH Rear Door Window Control Switch C801.
  • Ignition ON.
  • To check downward window operation, momentarily connect a fused jumper wire:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C801-3   C801-1
  • To check upward window operation, momentarily connect a fused jumper wire:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C801-2   C801-1

Does the window operate upward and downward when the fused jumper wire is in place?
Yes INSTALL a new rear door window control switch.
REFER to: Rear Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).
No GO to G6

G4 CHECK THE DOOR WINDOW CONTROL SWITCH CIRCUITS FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect: RH RDM C832.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C832-11   Ground
      C832-9   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to G17
No GO to G5

G5 CHECK THE WINDOW CONTROL SWITCH CIRCUITS FOR A SHORT TO GROUND WITH THE WINDOW CONTROL SWITCH DISCONNECTED
  • Disconnect: RH Rear Door Window Control Switch C801.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C832-11   Ground
      C832-9   Ground

Are the resistances greater than 10,000 ohms?
Yes INSTALL a new rear door window control switch.
REFER to: Rear Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).
No REPAIR the circuit in question.

G6 CHECK THE WINDOW CONTROL SWITCH CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Disconnect: RH RDM C832.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C801-1   C832-18
      C801-3   C832-9
      C801-2   C832-11

Are the resistances less than 3 ohms?
Yes GO to G7
No REPAIR the circuit in question.

G7 CHECK FOR A SHORT TO VOLTAGE IN THE WINDOW UP/DOWN CIRCUITS
  • Ignition OFF.
  • Disconnect: RH Rear Door Window Regulator Motor C828.
  • Disconnect: RH RDM C832.
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C828-1   Ground
      C828-4   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to G8

G8 CHECK FOR A SHORT TO GROUND IN THE WINDOW UP/DOWN CIRCUITS
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C828-1   Ground
      C828-4   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to G9
No REPAIR the circuit in question.

G9 CHECK FOR AN OPEN IN THE WINDOW UP/DOWN CIRCUITS
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C828-1   C832-14
      C828-4   C832-13

Are the resistances less than 3 ohms?
Yes GO to G10
No REPAIR the circuit in question.

G10 CHECK THE RDM (REAR DOOR MODULE) OUTPUT

NOTICE: The following step uses a test light to simulate normal circuit loads. To avoid connector terminal damage, use the Flex Probe Kit for the test light probe connection to the vehicle. Do not use the test light probe directly on any connector.

NOTE: Because the power window motor electrical connector (Hall-effect sensor input) is disconnected, the Rear Door Module (RDM) only activates the window output for approximately 500 ms then turns off.

  • Ignition OFF.
  • Connect: RH Rear Door Window Control Switch C801.
  • Connect: RH RDM C832.
  • Ignition ON.
  • Connect a test light between:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C828-1   C828-4
  • Activate the rear door window control switch in the up and down positions while observing the test light.

Does the test light momentarily illuminate when the rear door window control switch is activated in both up and down positions?
Yes INSTALL a new rear door window regulator motor.
REFER to: Rear Door Window Regulator and Motor (501-11 Glass, Frames and Mechanisms, Removal and Installation).
No GO to G17

G11 CHECK THE HALL-EFFECT POWER AND RETURN CIRCUITS

NOTICE: The following step uses a test light to simulate normal circuit loads. Use only the test light recommended in the Special Tools table at the beginning of this section. To avoid connector terminal damage, use the Flex Probe Kit for the test light probe connection to the vehicle. Do not use the test light probe directly on any connector.

  • Ignition OFF.
  • Disconnect: RH Rear Door Window Regulator Motor C828.
  • Ignition ON.
  • Connect a test light between:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C828-3   C828-6

Does the test light illuminate?
Yes GO to G14
No GO to G12

G12 CHECK THE HALL-EFFECT POWER CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect: RH RDM C832.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C832-4   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to G13
No REPAIR the circuit.

G13 CHECK FOR AN OPEN IN THE HALL-EFFECT POWER AND RETURN CIRCUITS
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C828-3   C832-4
      C828-6   C832-17

Are the resistances less than 3 ohms?
Yes GO to G17
No REPAIR the circuit in question.

G14 CHECK FOR A SHORT TO VOLTAGE IN THE HALL-EFFECT SIGNAL CIRCUITS
  • Ignition OFF.
  • Disconnect: RH RDM C832.
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C828-2   Ground
      C828-5   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to G15

G15 CHECK FOR A SHORT TO GROUND IN THE HALL-EFFECT SIGNAL CIRCUITS
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C828-2   Ground
      C828-5   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to G16
No REPAIR the circuit in question.

G16 CHECK FOR AN OPEN IN THE HALL-EFFECT SIGNAL CIRCUITS
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C828-2   C832-7
      C828-5   C832-8

Are the resistances less than 3 ohms?
Yes INSTALL a new rear door window regulator motor.
REFER to: Rear Door Window Regulator and Motor (501-11 Glass, Frames and Mechanisms, Removal and Installation).
TEST the system for normal operation. If the concern is still present, GO to G17
No REPAIR the circuit in question.

G17 CHECK FOR CORRECT RDM (REAR DOOR MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the RH RDM connector.
  • Repair:
    • corrosion (install new connector or terminals - clean module pins)
    • damaged or bent pins - install new terminals/pins as necessary
    • pushed-out pins - install new pins as necessary
  • Reconnect the RH RDM connector. Make sure it seats and latches correctly.
  • Reconnect all previously disconnected connectors.
  • Ignition ON.
  • Make sure the rear passenger window lock-out switch is in the UNLOCK position.
  • 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 TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new RDM RH .
REFER to: Rear Door Module (RDM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.


Component Test- Grid Wire Test

  1. Using a bright lamp in the vehicle, inspect the grid wire from the exterior. A broken grid wire appears as a brown spot.
  1. Run the engine at idle. Activate the rear window defrost switch. The indicator light should come on.
  1. Working in the vehicle with a voltmeter, contact the broad red-brown stripes of the rear glass window (positive lead to B+ side and the negative lead to ground side). The meter should read 10-13 volts. A lower voltage reading indicates a loose ground connection.
  1. Contact a good ground point with the negative lead of the meter. The voltage reading should not change.
  1. With the negative lead of the meter grounded, touch each grid line of the heated rear window glass at its midpoint with the positive lead. A reading of approximately 6 volts indicates the line is good. A reading of 0 volt indicates the line is broken between the midpoint and the B+ side of the grid line. A reading of 12 volts indicates the circuit is broken between the midpoint of the grid line and ground.
  1. Pinpointing the exact position of the break can be accomplished (if the voltmeter reads 0 volt when the midpoint of the grid line is touched with the positive lead of the voltmeter) by moving the positive lead of the voltmeter toward the B+ side of the grid line and touching the grid line until the voltmeter reads 12 volts. If the voltmeter reads 12 volts when the midpoint of the grid line is touched with the positive lead of the voltmeter, simply move the positive lead of the voltmeter toward the ground connection of the grid line and touch the grid line until the voltmeter reads 0 volt.

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    Lincoln Nautilus 2018-2024 Service Manual: Rear Door Alignment. General Procedures


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