Lincoln Navigator Manuals

Lincoln Navigator: Hydraulic Brake Actuation / Hydraulic Brake Actuation. Diagnosis and Testing

Lincoln Navigator 2018-2025 Workshop Manual / Brake System / Hydraulic Brake Actuation / Hydraulic Brake Actuation. Diagnosis and Testing

Diagnostic Trouble Code (DTC) Chart

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


Module DTC Description Action
DSM B1029:11 Accelerator Pedal Sensor: Circuit Short To Ground GO to Pinpoint Test D
DSM B1029:15 Accelerator Pedal Sensor: Circuit Short To Battery Or Open GO to Pinpoint Test D
DSM B137D:11 Pedal Adjustment Motor: Circuit Short To Ground GO to Pinpoint Test A
DSM B137D:11 Pedal Adjustment Motor: Circuit Short To Ground GO to Pinpoint Test B
DSM B137D:12 Pedal Adjustment Motor: Circuit Short To Battery GO to Pinpoint Test A
DSM B137D:12 Pedal Adjustment Motor: Circuit Short To Battery GO to Pinpoint Test B
DSM B137D:13 Pedal Adjustment Motor: Circuit Open GO to Pinpoint Test A
DSM B137D:13 Pedal Adjustment Motor: Circuit Open GO to Pinpoint Test B
DSM B14C7:24 Adjustable Pedal Forward Switch: Signal Stuck High GO to Pinpoint Test A
DSM B14C7:24 Adjustable Pedal Forward Switch: Signal Stuck High GO to Pinpoint Test B
DSM B14C8:24 Adjustable Pedal Rearward Switch: Signal Stuck High GO to Pinpoint Test A
DSM B14C8:24 Adjustable Pedal Rearward Switch: Signal Stuck High GO to Pinpoint Test B

Global Customer Symptom Code (GCSC) Chart

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


Symptom Action
Start/Run/Move > Pedals > Accelerator > Power Function GO to Pinpoint Test A
Start/Run/Move > Pedals > Accelerator > Power Function GO to Pinpoint Test B
Start/Run/Move > Pedals > Accelerator > Power Function GO to Pinpoint Test C
Stop/Steer/Ride > Pedals/Lever > Brake > Power Function GO to Pinpoint Test A
Stop/Steer/Ride > Pedals/Lever > Brake > Power Function GO to Pinpoint Test B
Stop/Steer/Ride > Pedals/Lever > Brake > Power Function GO to Pinpoint Test C
Stop/Steer/Ride > Pedals/Lever > Brake > Sticks/Binds GO to Pinpoint Test E

Symptom Charts

Symptom Chart – Adjustable Pedals With Memory Feature

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
Adjustable pedals are inoperative or do not operate correctly — using the adjustable pedal control switch   GO to Pinpoint Test A
Adjustable pedals are inoperative or do not operate correctly — using the memory SET switch buttons   GO to Pinpoint Test C
Adjustable pedals are inoperative or do not operate correctly — using the RKE transmitter   GO to Pinpoint Test C
Adjustable pedals only move for 2 seconds regardless of how long the adjustable pedal control switch is pressed   GO to Pinpoint Test E

Pinpoint Tests


PINPOINT TEST A: ADJUSTABLE PEDALS ARE INOPERATIVE OR DO NOT OPERATE CORRECTLY – USING THE ADJUSTABLE PEDAL CONTROL SWITCH (WITH MEMORY FEATURE)

Refer to Wiring Diagrams Cell 127 for schematic and connector information.

Normal Operation and Fault Conditions

The adjustable pedal control switch receives fused battery voltage from BCM fuse 29 (15A). When the switch is pressed, the voltage is sent to the DSM which responds by sending a voltage to the adjustable pedal motor. The voltage returns to the DSM where it is grounded. An open fuse or circuit, a short to ground in the circuit, an open in the adjustable pedal motor, foreign material blocking the pedal assembly, a damaged cable, damaged pedal assembly or an internal failure of the DSM prevents the adjustable pedals from operating correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
DSM B137D:11 Pedal Adjustment Motor: Circuit Short To Ground This DTC sets in continuous memory if the DSM detects a short to ground on 1 or both of the adjustable pedal motor circuits or the motor.
DSM B137D:12 Pedal Adjustment Motor: Circuit Short To Battery This DTC sets in continuous memory or on-demand if the DSM detects a short to voltage on 1 or both of the adjustable pedal motor circuits or the motor.
DSM B137D:13 Pedal Adjustment Motor: Circuit Open This DTC sets in continuous memory or on-demand if the DSM detects an open on 1 or both of the adjustable pedal motor circuits or the motor.
DSM B14C7:24 Adjustable Pedal Forward Switch: Signal Stuck High This DTC sets in continuous memory or on-demand if the adjustable pedal switch forward position is active for more than 120 seconds. This can be due to a short to battery on the switch circuit, a mechanically stuck switch or something resting against the switch.
DSM B14C8:24 Adjustable Pedal Rearward Switch: Signal Stuck High This DTC sets in continuous memory or on-demand if the adjustable pedal switch rearward position is active for more than 120 seconds. This can be due to a short to battery on the switch circuit, a mechanically stuck switch or something resting against the switch.

Possible Sources

  • Foreign material
  • Fuses
  • Wiring, terminals or connectors
  • Adjustable pedal cable
  • Adjustable pedal control switch
  • Adjustable pedal motor
  • Adjustable brake pedal assembly
  • Adjustable accelerator pedal assembly

Visual Inspection and Pre-checks

  • Make sure BCM fuse 29 (15A) is OK.

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector.

A1 CHECK THE DSM (DRIVER FRONT SEAT MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the DSM self-test.

Are any of the Diagnostic Trouble Codes (DTCs) listed in the DTC Fault Trigger Conditions table present?
Yes For DTC B14C7:24 or B14C8:24, GO to A5
For DTC B137D:13, GO to A12
For DTC B137D:11, GO to A13
For DTC B137D:12, GO to A15
No GO to A2

A2 CHECK THE ADJUSTABLE PEDAL MOTOR AND CABLE INSTALLATION
  • Check the adjustable pedal motor and cable for correct installation.

Are the motor and cable correctly installed?
Yes GO to A3
No CORRECT the adjustable pedal motor or cable installation.

A3 INSPECT FOR FOREIGN MATERIAL
  • Inspect the adjustable brake and accelerator pedal assemblies for foreign material causing a binding condition.

Are the pedal assemblies free from foreign material?
Yes GO to A4
No REMOVE the foreign material.

A4 CHECK THE DSM (DRIVER FRONT SEAT MODULE) ADJUSTABLE PEDAL CONTROL SWITCH
  • Using a diagnostic scan tool,

    Access the  DSM  and monitor the  PEDAL_OUT  PID

    Access the  DSM  and monitor the  PEDAL_IN  PID

    while activating the adjustable pedal control switch in both directions.

Does the PID display match the switch position within one second of pressing the switch?
Yes GO to A11
No GO to A5

A5 CHECK ADJUSTABLE PEDAL CONTROL SWITCH VOLTAGE INPUT CIRCUIT FOR AN OPEN
  • Disconnect BCM C2280A.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2089-2   C2280A-21

Is the resistance less than 3 ohms?
Yes GO to A6
No VERIFY BCM fuse 29 (15A) is OK. If the fuse is OK, REPAIR the circuit.
If the fuse is not OK, REFER to the Wiring Diagrams manual to determine the cause of the circuit short.

A6 CHECK ADJUSTABLE PEDAL CONTROL SWITCH VOLTAGE INPUT CIRCUIT FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2089-2   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to A7
No REPAIR the circuit.

A7 CHECK THE ADJUSTABLE PEDAL CONTROL SWITCH OUTPUT CIRCUITS FOR AN OPEN
  • Disconnect DSM C341E.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2089-1   C341E-15
      C2089-5   C341E-5

Are the resistances less than 3 ohms?
Yes GO to A8
No REPAIR the circuit.

A8 CHECK THE ADJUSTABLE PEDAL CONTROL SWITCH OUTPUT CIRCUITS FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2089-1   Ground
      C2089-5   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to A9
No REPAIR the circuit.

A9 CHECK THE ADJUSTABLE PEDAL CONTROL SWITCH OUTPUT CIRCUITS FOR A SHORT TOGETHER
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2089-1   C2089-5

Is the resistance greater than 10,000 ohms?
Yes GO to A10
No REPAIR the circuit.

A10 CHECK THE ADJUSTABLE PEDAL CONTROL SWITCH OUTPUT CIRCUITS FOR A SHORT TO VOLTAGE
  • Connect BCM C2280A.
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2089-1   Ground
      C2089-5   Ground

Is any voltage present?
Yes REPAIR the circuit.
No SET the ignition to OFF. DISCONNECT all in-line electrical connectors between the DSM and the adjustable pedal control switch.
INSPECT DSM C341E, adjustable pedal control switch C2089 and in-line electrical connectors for corrosion, bent pins and pushed-out pins. REPAIR the connectors as necessary.
If the connectors are OK, INSTALL a new adjustable pedal control switch.
REFER to: Brake Pedal Control Switch (206-06 Hydraulic Brake Actuation, Removal and Installation).

A11 CHECK THE DSM (DRIVER FRONT SEAT MODULE) ADJUSTABLE PEDAL OUTPUT PARAMETER IDENTIFICATIONS (PIDS)
  • Select PARK.
  • Ignition ON.
  • Using a diagnostic scan tool,

    Access the  DSM  and monitor the  PEDAL_OUT  PID

    Access the  DSM  and monitor the  PEDAL_IN  PID

    while activating the adjustable pedal control switch in both directions.

Did the adjustable pedals respond correctly to the corresponding PID ?
Yes The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
SET the ignition to OFF. DISCONNECT DSM C341A and C341E, adjustable pedal control switch C2089 and any in-line electrical connectors.
INSPECT the electrical connectors for corrosion, bent pins and pushed-out pins. REPAIR the connectors as necessary.
No GO to A12

A12 CHECK THE ADJUSTABLE PEDAL MOTOR CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Disconnect DSM C341A.
  • Disconnect adjustable pedal motor C2159.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2159-1   C341A-10
      C2159-2   C341A-20

Are the resistances less than 3 ohms?
Yes If sent here because DTC B137D:13 is present, INSTALL a new accelerator pedal (the adjustable pedal motor is part of the adjustable pedal assembly).
REFER to: Accelerator Pedal (310-02 Acceleration Control, Removal and Installation). If DTC B137D:13 is not present, GO to A13
No REPAIR the circuit.

A13 CHECK THE ADJUSTABLE PEDAL MOTOR CIRCUITS FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect DSM C341A (if not previously disconnected).
  • Disconnect adjustable pedal motor C2159 (if not previously disconnected).
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2159-1   Ground
      C2159-2   Ground

Are the resistances greater than 10,000 ohms?
Yes If sent here because DTC B137D:11 is present, INSTALL a new accelerator pedal (the adjustable pedal motor is part of the adjustable pedal assembly).
REFER to: Accelerator Pedal (310-02 Acceleration Control, Removal and Installation). If DTC B137D:11 is not present, GO to A14
No REPAIR the circuit.

A14 CHECK THE ADJUSTABLE PEDAL MOTOR CIRCUITS FOR A SHORT TOGETHER
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2159-1   C2159-2

Are the resistances greater than 10,000 ohms?
Yes GO to A15
No REPAIR the circuit.

A15 CHECK THE ADJUSTABLE PEDAL MOTOR CIRCUITS FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect DSM C341A (if not previously disconnected).
  • Disconnect adjustable pedal motor C2159 (if not previously disconnected).
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2159-1   Ground
      C2159-2   Ground

Is any voltage present?
Yes REPAIR the circuit.
No GO to A16

A16 CHECK THE DSM (DRIVER FRONT SEAT MODULE) OUTPUT

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

NOTE: This test step causes Diagnostic Trouble Codes (DTCs) to set in the DSM .

NOTE: When the adjustable pedal motor connector is disconnected on vehicles with the memory feature, the DSM provides voltage in 2 seconds intervals only, due to the open circuit in the Hall-effect sensor circuit.

  • Ignition OFF.
  • Connect DSM C341A and C341E .
  • Ignition ON.
  • Press the adjustable pedal control switch in both directions with a test light connected as indicated:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2159-1   C2159-2

Does the test light illuminate when the adjustable pedal switch is pressed in each direction?
Yes GO to A17
No GO to A19

A17 CHECK THE ADJUSTABLE BRAKE PEDAL CABLE INSTALLATION
  • Disconnect the adjustable brake pedal cable from the adjustable brake pedal worm gear.
  • Operate the adjustable pedal control switch in both directions and observe the cable in the conduit.

Does the adjustable brake pedal cable turn in the conduit when the switch is pressed?
Yes INSTALL a new brake pedal assembly.
REFER to: Brake Pedal and Bracket (206-06 Hydraulic Brake Actuation, Removal and Installation).
No GO to A18

A18 ISOLATE THE ADJUSTABLE ACCELERATOR PEDAL ASSEMBLY
  • Operate the adjustable pedal control switch in both directions and observe the accelerator pedal.

Does the accelerator pedal move when the switch is pressed?
Yes INSTALL a new adjustable pedal cable.
No INSTALL a new adjustable pedal motor (the adjustable pedal motor is part of the accelerator pedal assembly).
REFER to: Accelerator Pedal (310-02 Acceleration Control, Removal and Installation).

A19 VERIFY ALL DSM (DRIVER FRONT SEAT MODULE) WIRING CONNECTIONS
  • Ignition OFF.
  • Disconnect driver seat inline C3053 (if not previously disconnected).
  • Disconnect all in-line electrical connectors between the DSM and the adjustable pedal motor.
  • Using a good light source, inspect all disconnected electrical connectors for the following conditions:
    • corrosion - install new connector or terminal and clean the module pins
    • damaged or bent pins - install new terminals or pins
    • pushed-out pins - install new pins as necessary
    • spread terminals - install new terminals as necessary

Are the connectors free of corrosion, damaged pins, bent pins, pushed-out pins and spread terminals?
Yes GO to A20
No REPAIR the affected connectors or terminals.
Refer to Wiring Diagrams Cell 5 for schematic and connector information.

A20 CHECK FOR CORRECT DSM (DRIVER FRONT SEAT MODULE) OPERATION
  • Connect adjustable pedal motor C2159. Make sure it seats and latches correctly.
  • Connect all in-line electrical connectors between the DSM and the adjustable pedal motor. Make sure they seat and latch correctly.
  • Connect driver seat inline C3053. Make sure it seats and latches correctly.
  • Operate the system and verify the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions.
If no service articles exist for this concern, INSTALL a new DSM .
REFER to: Driver Front Seat Module (DSM) (501-10A Front Seats, Removal and Installation).
No The condition that caused the concern is not present at this time. The concern is intermittent and may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST B: ADJUSTABLE PEDALS ARE INOPERATIVE OR DO NOT OPERATE CORRECTLY – USING THE ADJUSTABLE PEDAL CONTROL SWITCH (WITH MEMORY FEATURE)

Refer to Wiring Diagrams Cell 127 for schematic and connector information.

Normal Operation and Fault Conditions

The adjustable pedal control switch receives fused battery voltage from BCM fuse 29 (15A). When the switch is pressed, the voltage is sent to the DSM which responds by sending a voltage to the adjustable pedal motor. The voltage returns to the DSM where it is grounded. An open fuse or circuit, a short to ground in the circuit, an open in the adjustable pedal motor, foreign material blocking the pedal assembly, a damaged cable, damaged pedal assembly or an internal failure of the DSM prevents the adjustable pedals from operating correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
DSM B137D:11 Pedal Adjustment Motor: Circuit Short To Ground This DTC sets in continuous memory if the DSM detects a short to ground on 1 or both of the adjustable pedal motor circuits or the motor.
DSM B137D:12 Pedal Adjustment Motor: Circuit Short To Battery This DTC sets in continuous memory or on-demand if the DSM detects a short to voltage on 1 or both of the adjustable pedal motor circuits or the motor.
DSM B137D:13 Pedal Adjustment Motor: Circuit Open This DTC sets in continuous memory or on-demand if the DSM detects an open on 1 or both of the adjustable pedal motor circuits or the motor.
DSM B14C7:24 Adjustable Pedal Forward Switch: Signal Stuck High This DTC sets in continuous memory or on-demand if the adjustable pedal switch forward position is active for more than 120 seconds. This can be due to a short to battery on the switch circuit, a mechanically stuck switch or something resting against the switch.
DSM B14C8:24 Adjustable Pedal Rearward Switch: Signal Stuck High This DTC sets in continuous memory or on-demand if the adjustable pedal switch rearward position is active for more than 120 seconds. This can be due to a short to battery on the switch circuit, a mechanically stuck switch or something resting against the switch.

Possible Sources

  • Foreign material
  • Fuses
  • Wiring, terminals or connectors
  • Adjustable pedal cable
  • Adjustable pedal control switch
  • Adjustable pedal motor
  • Adjustable brake pedal assembly
  • Adjustable accelerator pedal assembly

Visual Inspection and Pre-checks

  • Make sure BCM fuse 29 (15A) is OK.

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector.

B1 CHECK THE DSM (DRIVER FRONT SEAT MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the DSM self-test.

Are any of the Diagnostic Trouble Codes (DTCs) listed in the DTC Fault Trigger Conditions table present?
Yes For DTC B14C7:24 or B14C8:24, GO to B5
For DTC B137D:13, GO to B12
For DTC B137D:11, GO to B13
For DTC B137D:12, GO to B15
No GO to B2

B2 CHECK THE ADJUSTABLE PEDAL MOTOR AND CABLE INSTALLATION
  • Check the adjustable pedal motor and cable for correct installation.

Are the motor and cable correctly installed?
Yes GO to B3
No CORRECT the adjustable pedal motor or cable installation.

B3 INSPECT FOR FOREIGN MATERIAL
  • Inspect the adjustable brake and accelerator pedal assemblies for foreign material causing a binding condition.

Are the pedal assemblies free from foreign material?
Yes GO to B4
No REMOVE the foreign material.

B4 CHECK THE DSM (DRIVER FRONT SEAT MODULE) ADJUSTABLE PEDAL CONTROL SWITCH
  • Using a diagnostic scan tool,

    Access the  DSM  and monitor the  PEDAL_OUT  PID

    Access the  DSM  and monitor the  PEDAL_IN  PID

    while activating the adjustable pedal control switch in both directions.

Does the PID display match the switch position within one second of pressing the switch?
Yes GO to B11
No GO to B5

B5 CHECK ADJUSTABLE PEDAL CONTROL SWITCH VOLTAGE INPUT CIRCUIT FOR AN OPEN
  • Disconnect BCM C2280A.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2089-2   C2280A-21

Is the resistance less than 3 ohms?
Yes GO to B6
No VERIFY BCM fuse 29 (15A) is OK. If the fuse is OK, REPAIR the circuit.
If the fuse is not OK, REFER to the Wiring Diagrams manual to determine the cause of the circuit short.

B6 CHECK ADJUSTABLE PEDAL CONTROL SWITCH VOLTAGE INPUT CIRCUIT FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2089-2   Ground

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

B7 CHECK THE ADJUSTABLE PEDAL CONTROL SWITCH OUTPUT CIRCUITS FOR AN OPEN
  • Disconnect DSM C341E.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2089-1   C341E-15
      C2089-5   C341E-5

Are the resistances less than 3 ohms?
Yes GO to B8
No REPAIR the circuit.

B8 CHECK THE ADJUSTABLE PEDAL CONTROL SWITCH OUTPUT CIRCUITS FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2089-1   Ground
      C2089-5   Ground

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

B9 CHECK THE ADJUSTABLE PEDAL CONTROL SWITCH OUTPUT CIRCUITS FOR A SHORT TOGETHER
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2089-1   C2089-5

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

B10 CHECK THE ADJUSTABLE PEDAL CONTROL SWITCH OUTPUT CIRCUITS FOR A SHORT TO VOLTAGE
  • Connect BCM C2280A.
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2089-1   Ground
      C2089-5   Ground

Is any voltage present?
Yes REPAIR the circuit.
No SET the ignition to OFF. DISCONNECT all in-line electrical connectors between the DSM and the adjustable pedal control switch.
INSPECT DSM C341E, adjustable pedal control switch C2089 and in-line electrical connectors for corrosion, bent pins and pushed-out pins. REPAIR the connectors as necessary.
If the connectors are OK, INSTALL a new adjustable pedal control switch.
REFER to: Brake Pedal Control Switch (206-06 Hydraulic Brake Actuation, Removal and Installation).

B11 CHECK THE DSM (DRIVER FRONT SEAT MODULE) ADJUSTABLE PEDAL OUTPUT PARAMETER IDENTIFICATIONS (PIDS)
  • Select PARK.
  • Ignition ON.
  • Using a diagnostic scan tool,

    Access the  DSM  and monitor the  PEDAL_OUT  PID

    Access the  DSM  and monitor the  PEDAL_IN  PID

    while activating the adjustable pedal control switch in both directions.

Did the adjustable pedals respond correctly to the corresponding PID ?
Yes The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
SET the ignition to OFF. DISCONNECT DSM C341A and C341E, adjustable pedal control switch C2089 and any in-line electrical connectors.
INSPECT the electrical connectors for corrosion, bent pins and pushed-out pins. REPAIR the connectors as necessary.
No GO to B12

B12 CHECK THE ADJUSTABLE PEDAL MOTOR CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Disconnect DSM C341A.
  • Disconnect adjustable pedal motor C2159.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2159-1   C341A-10
      C2159-2   C341A-20

Are the resistances less than 3 ohms?
Yes If sent here because DTC B137D:13 is present, INSTALL a new accelerator pedal (the adjustable pedal motor is part of the adjustable pedal assembly).
REFER to: Accelerator Pedal (310-02 Acceleration Control, Removal and Installation). If DTC B137D:13 is not present, GO to B13
No REPAIR the circuit.

B13 CHECK THE ADJUSTABLE PEDAL MOTOR CIRCUITS FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect DSM C341A (if not previously disconnected).
  • Disconnect adjustable pedal motor C2159 (if not previously disconnected).
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2159-1   Ground
      C2159-2   Ground

Are the resistances greater than 10,000 ohms?
Yes If sent here because DTC B137D:11 is present, INSTALL a new accelerator pedal (the adjustable pedal motor is part of the adjustable pedal assembly).
REFER to: Accelerator Pedal (310-02 Acceleration Control, Removal and Installation). If DTC B137D:11 is not present, GO to B14
No REPAIR the circuit.

B14 CHECK THE ADJUSTABLE PEDAL MOTOR CIRCUITS FOR A SHORT TOGETHER
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2159-1   C2159-2

Are the resistances greater than 10,000 ohms?
Yes GO to B15
No REPAIR the circuit.

B15 CHECK THE ADJUSTABLE PEDAL MOTOR CIRCUITS FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect DSM C341A (if not previously disconnected).
  • Disconnect adjustable pedal motor C2159 (if not previously disconnected).
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2159-1   Ground
      C2159-2   Ground

Is any voltage present?
Yes REPAIR the circuit.
No GO to B16

B16 CHECK THE DSM (DRIVER FRONT SEAT MODULE) OUTPUT

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

NOTE: This test step causes Diagnostic Trouble Codes (DTCs) to set in the DSM .

NOTE: When the adjustable pedal motor connector is disconnected on vehicles with the memory feature, the DSM provides voltage in 2 seconds intervals only, due to the open circuit in the Hall-effect sensor circuit.

  • Ignition OFF.
  • Connect DSM C341A and C341E .
  • Ignition ON.
  • Press the adjustable pedal control switch in both directions with a test light connected as indicated:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2159-1   C2159-2

Does the test light illuminate when the adjustable pedal switch is pressed in each direction?
Yes GO to B17
No GO to B19

B17 CHECK THE ADJUSTABLE BRAKE PEDAL CABLE INSTALLATION
  • Disconnect the adjustable brake pedal cable from the adjustable brake pedal worm gear.
  • Operate the adjustable pedal control switch in both directions and observe the cable in the conduit.

Does the adjustable brake pedal cable turn in the conduit when the switch is pressed?
Yes INSTALL a new brake pedal assembly.
REFER to: Brake Pedal and Bracket (206-06 Hydraulic Brake Actuation, Removal and Installation).
No GO to B18

B18 ISOLATE THE ADJUSTABLE ACCELERATOR PEDAL ASSEMBLY
  • Operate the adjustable pedal control switch in both directions and observe the accelerator pedal.

Does the accelerator pedal move when the switch is pressed?
Yes INSTALL a new adjustable pedal cable.
No INSTALL a new adjustable pedal motor (the adjustable pedal motor is part of the accelerator pedal assembly).
REFER to: Accelerator Pedal (310-02 Acceleration Control, Removal and Installation).

B19 VERIFY ALL DSM (DRIVER FRONT SEAT MODULE) WIRING CONNECTIONS
  • Ignition OFF.
  • Disconnect DSM C3007M (if not previously disconnected).
  • Disconnect all in-line electrical connectors between the DSM and the adjustable pedal motor.
  • Using a good light source, inspect all disconnected electrical connectors for the following conditions:
    • corrosion - install new connector or terminal and clean the module pins
    • damaged or bent pins - install new terminals or pins
    • pushed-out pins - install new pins as necessary
    • spread terminals - install new terminals as necessary

Are the connectors free of corrosion, damaged pins, bent pins, pushed-out pins and spread terminals?
Yes GO to B20
No REPAIR the affected connectors or terminals.
Refer to Wiring Diagrams Cell 5 for schematic and connector information.

B20 CHECK FOR CORRECT DSM (DRIVER FRONT SEAT MODULE) OPERATION
  • Connect adjustable pedal motor C2159. Make sure it seats and latches correctly.
  • Connect all in-line electrical connectors between the DSM and the adjustable pedal motor. Make sure they seat and latch correctly.
  • Connect DSM C3007M. Make sure it seats and latches correctly.
  • Operate the system and verify the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions.
If no service articles exist for this concern, INSTALL a new DSM .
REFER to: Driver Front Seat Module (DSM) (501-10A Front Seats, Removal and Installation).
No The condition that caused the concern is not present at this time. The concern is intermittent and may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST C: ADJUSTABLE PEDALS ARE INOPERATIVE OR DO NOT OPERATE CORRECTLY – USING THE MEMORY SET SWITCH BUTTONS OR THE RKE (REMOTE KEYLESS ENTRY) TRANSMITTER

Refer to Wiring Diagrams Cell 127 for schematic and connector information.

Normal Operation and Fault Conditions

Refer to Adjustable Pedal – with Memory Feature, REFER to: Hydraulic Brake Actuation - System Operation and Component Description (206-06 Hydraulic Brake Actuation, Description and Operation).

An open in the adjustable pedal motor, foreign material blocking the pedal assembly, a damaged cable, damaged pedal assembly, a CAN failure, or an internal failure of the modules listed below prevents the adjustable pedals from operating correctly.

Possible Sources

  • Foreign material
  • Wiring, terminals or connectors
  • CAN concern
  • Adjustable pedal motor
  • Adjustable brake pedal assembly
  • RKE transmitter
  • RTM
  • DDM
  • BCM
  • DSM

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector

C1 CHECK THE ADJUSTABLE PEDAL OPERATION WITH THE ADJUSTABLE PEDAL CONTROL SWITCH
  • Press the adjustable pedal control switch in each direction for more than one second and observe the adjustable pedals.

Do the adjustable pedals operate for more than one second in the direction selected using the switch?
Yes GO to C3
No If the pedals do not move at all using the switch, GO to Pinpoint Test A
If the pedals only move in 2 second intervals regardless of switch operation, GO to Pinpoint Test D

C2 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self test on the following modules:
    • BCM
    • DDM
    • DSM
    • RTM

Are any Diagnostic Trouble Codes (DTCs) present in any of the modules listed?
Yes DIAGNOSE all Diagnostic Trouble Codes (DTCs) before continuing with this pinpoint test.
For BCM Diagnostic Trouble Codes (DTCs),
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing). For DDM Diagnostic Trouble Codes (DTCs),
REFER to: Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Diagnosis and Testing). For DSM Diagnostic Trouble Codes (DTCs),
REFER to: Front Seats (501-10A Front Seats, Diagnosis and Testing). For RTM Diagnostic Trouble Codes (DTCs),
REFER to: Tire Pressure Monitoring System (TPMS) (204-04B Tire Pressure Monitoring System (TPMS), Diagnosis and Testing).
No If a module does not communicate with the diagnostic scan tool,
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing). If all modules communicate with the diagnostic scan tool and no Diagnostic Trouble Codes (DTCs) are present, GO to C3

C3 CHECK THE MEMORY SYSTEM OPERATION
  • Set a memory position for the driver seat, exterior mirrors, steering column and adjustable pedals to memory SET switch button 1. Refer to the Owner's Literature for additional instructions for programming a memory position.
  • Using the control switches, move the driver seat, exterior mirror, steering column and adjustable pedals to another position.
  • Select PARK.
  • Press the memory SET switch button 1 and observe the following items:
    • driver seat
    • exterior mirrors
    • steering column
    • brake and accelerator pedals

Do all items move when the button is pressed?
Yes GO to C4
No If all items do not move, DIAGNOSE the memory feature.
REFER to: Front Seats (501-10A Front Seats, Diagnosis and Testing). If only the adjustable pedals do not move, GO to C5
If only the driver seat does not move,
REFER to: Front Seats (501-10A Front Seats, Diagnosis and Testing). If only the exterior mirrors do not move,
REFER to: Rear View Mirrors (501-09 Rear View Mirrors, Diagnosis and Testing). If only the steering column does not move,
REFER to: Steering Column (211-04 Steering Column, Diagnosis and Testing).

C4 CHECK THE RKE (REMOTE KEYLESS ENTRY) TRANSMITTER OR PASSIVE KEY OPERATION
  • Set a memory position for the driver seat, exterior mirrors, steering column and adjustable pedals to a RKE transmitter or passive key. Refer to the Owner's Literature for additional instructions for programming a memory position to a RKE transmitter or passive key.
  • Using the control switches, move the driver seat, exterior mirror, steering column and adjustable pedals to another position.
  • Select PARK.
  • Press the unlock button on the RKE transmitter or passive key and observe the following items:
    • driver seat
    • exterior mirrors
    • steering column
    • brake and accelerator pedals

Do all items move when the button is pressed?
Yes The system is operating correctly at this time. The concern may have been caused due to high network traffic or an intermittent fault condition.
No If all items do not move, DIAGNOSE the memory feature.
REFER to: Front Seats (501-10A Front Seats, Diagnosis and Testing). If only the adjustable pedals do not move, GO to C5
If only the driver seat does not move,
REFER to: Front Seats (501-10A Front Seats, Diagnosis and Testing). If only the exterior mirrors do not move,
REFER to: Rear View Mirrors (501-09 Rear View Mirrors, Diagnosis and Testing). If only the steering column does not move,
REFER to: Steering Column (211-04 Steering Column, Diagnosis and Testing).

C5 CHECK THE ADJUSTABLE PEDAL MOTOR AND CABLE INSTALLATION
  • Check the adjustable pedal motor and cable for correct installation.

Are the motor and cable correctly installed?
Yes GO to C6
No CORRECT the adjustable pedal motor or cable installation.

C6 INSPECT FOR FOREIGN MATERIAL
  • Inspect the adjustable brake pedal and accelerator assemblies for foreign material causing a binding condition.

Are the pedal assemblies free from foreign material?
Yes GO to C7
No REMOVE the foreign material.

C7 CHECK THE ADJUSTABLE PEDAL MOTOR AND HALL-EFFECT CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Disconnect DSM C341A and C341E.
  • Disconnect adjustable pedal motor C2159.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2159-1   C341A-10
      C2159-2   C341A-20
      C2159-3   C341E-2
      C2159-4   C341E-11

Are the resistances less than 3 ohms?
Yes GO to C8
No REPAIR the circuit.

C8 CHECK THE ADJUSTABLE PEDAL MOTOR AND HALL-EFFECT CIRCUITS FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2159-1   Ground
      C2159-2   Ground
      C2159-3   Ground
      C2159-4   Ground

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

C9 CHECK THE ADJUSTABLE PEDAL MOTOR AND HALL-EFFECT CIRCUITS FOR A SHORT TOGETHER
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2159-1   C2159-2
      C2159-1   C2159-3
      C2159-1   C2159-4
      C2159-2   C2159-3
      C2159-2   C2159-4
      C2159-3   C2159-4

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

C10 CHECK THE ADJUSTABLE PEDAL MOTOR AND HALL-EFFECT CIRCUITS FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2159-1   Ground
      C2159-2   Ground
      C2159-3   Ground
      C2159-4   Ground

Is any voltage present?
Yes REPAIR the circuit.
No INSTALL a new adjustable pedal motor (the adjustable pedal motor is part of the accelerator pedal assembly).
REFER to: Acceleration Control (310-02 Acceleration Control, Diagnosis and Testing).

PINPOINT TEST D: B1029:11, B1029:15

Refer to Wiring Diagrams Cell 127 for schematic and connector information.

Normal Operation and Fault Conditions

The adjustable pedal motor contains a Hall-effect sensor allowing the DSM to monitor the adjustable pedal position. The DSM stores the sensor information and uses this information when a memory position is recalled using the memory SET switch, a RKE transmitter or a passive ignition key. When 1 or more of the following Diagnostic Trouble Codes (DTCs) is set, the adjustable pedals enter a "jog mode". When the pedals are in jog mode, the memory system recall does not function from the memory SET switch, RKE transmitter or passive ignition key. When in jog mode and the adjustable pedal control switch is pressed, the motor moves the pedals for 2 seconds in the direction selected regardless of the length of time the switch is actually pressed.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
DSM B1029:11 Accelerator Pedal Sensor: Circuit Short To Ground This DTC sets in continuous memory or on demand if the Hall-effect feedback voltage is less than 3.5 volts or the Hall-effect monitor voltage is greater than or equal to 6.85 volts. Motor operates in limp mode when DTC is set. Memory feature does not work.
DSM B1029:15 Accelerator Pedal Sensor: Circuit Short To Battery Or Open This DTC sets in continuous memory or on demand if the DSM detects battery voltage or open on the Hall-effect switch feedback circuit. Motor operates in limp mode when DTC is set. Memory feature does not work.

Possible Sources

  • Wiring, terminals or connectors
  • Adjustable pedal motor

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector

D1 CHECK THE HALL-EFFECT CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Disconnect adjustable pedal motor C2159.
  • Disconnect DSM C341E.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2159-3   C341E-2
      C2159-4   C341E-11

Are the resistances less than 3 ohms?
Yes GO to D2
No REPAIR the circuit.

D2 CHECK THE HALL-EFFECT CIRCUITS FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2159-3   Ground
      C2159-4   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to D3
No REPAIR the circuit.

D3 CHECK THE HALL-EFFECT CIRCUITS FOR A SHORT TOGETHER
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2159-3   C2159-4

Is the resistance greater than 10,000 ohms?
Yes GO to D4
No REPAIR the circuit.

D4 CHECK THE HALL-EFFECT CIRCUITS FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2159-3   Ground
      C2159-4   Ground

Is any voltage present?
Yes REPAIR the circuit.
No CHECK for other DSM Diagnostic Trouble Codes (DTCs). If other Diagnostic Trouble Codes (DTCs) are present, GO to the DTC Chart: DSM .
If no other DSM Diagnostic Trouble Codes (DTCs) are present, the system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
SET the ignition to OFF. DISCONNECT all in-line electrical connectors between the DSM and the adjustable pedal motor.
INSPECT DSM C341E, adjustable pedal motor C2159 and in-line electrical connectors for corrosion, bent pins and pushed-out pins. REPAIR the connectors as necessary.

PINPOINT TEST E: ADJUSTABLE PEDAL ONLY MOVE FOR 2 SECONDS REGARDLESS OF HOW LONG THE ADJUSTABLE PEDAL CONTROL SWITCH IS PRESSED

Refer to Wiring Diagrams Cell 127 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Hydraulic Brake Actuation - System Operation and Component Description (206-06 Hydraulic Brake Actuation, Description and Operation).
. The adjustable pedal motor contains a Hall-effect sensor allowing the DSM to monitor the adjustable pedal position. The DSM stores the sensor information and uses this information when a memory position is recalled using the memory SET switch, a RKE transmitter or a passive ignition key. When 1 or more of the following Diagnostic Trouble Codes (DTCs) is set, the adjustable pedals enter a "jog mode". When the pedals are in jog mode, the memory system recall does not function from the memory SET switch, RKE transmitter or passive ignition key. When in jog mode and the adjustable pedal control switch is pressed, the motor moves the pedals for 2 seconds in the direction selected regardless of the length of time the switch is actually pressed.

Possible Sources

  • Wiring, terminals or connectors
  • Adjustable pedal motor
Diagnostic steps are not provided for this symptom or DTC.  REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

    Hydraulic Brake Actuation - System Operation and Component Description. Description and Operation

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