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Adjustable Pedal With Memory Feature

  1. Verify the customer concern by operating the adjustable pedal.
  2. Visually inspect for obvious signs of mechanical or electrical damage.
    VISUAL INSPECTION CHART

    Mechanical Electrical
    • Adjustable pedal assembly
    • Adjustable pedal switch
    • Memory set switch
    • Circuitry
    • Smart junction box (SJB) fuse 4 (15A)
  3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
    4. NOTE: Make sure to use the latest scan tool software release.
  4. If the cause is not visually evident, (only for adjustable pedal with memory, all others Go to Symptom Chart ) connect the scan tool to the data link connector (DLC).
    5. NOTE: The vehicle communication module (VCM) LED prove out confirms power and ground from the DLC are provided to the VCM.
  5. If the scan tool does not communicate with the VCM:
    • check the VCM connection to the vehicle.
    • check the scan tool connection to the VCM.
    • refer to MODULE COMMUNICATIONS NETWORK article, No power to the scan tool, to diagnose no communication with the scan tool.
  6. If the scan tool does not communicate with the vehicle:
    • verify the ignition key is in the ON position.
    • verify the scan tool operation with a known good vehicle.
    • refer to MODULE COMMUNICATIONS NETWORK article to diagnose no response from the powertrain control module (PCM).
  7. Carry out the network test.
    • If the scan tool responds with no communication for one or more modules, refer to MODULE COMMUNICATIONS NETWORK article.
    • If the network test passes, retrieve and record continuous memory diagnostic trouble codes (DTCs).
  8. Clear the continuous DTCs and carry out the self-test diagnostics for the Powertrain Control Module (PCM) and the Instrument Cluster.
  9. If the DTCs retrieved are related to the concern, go to Powertrain Control Module (PCM) Diagnostic Trouble Code (DTC) Index. or the Instrument Cluster Diagnostic Trouble Code (DTC) Index. For all other DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES article.
  10. If no DTCs related to the concern are retrieved, go to Symptom Chart .
DRIVER SEAT MODULE (DSM) DIAGNOSTIC TROUBLE CODE (DTC) INDEX

DTC Description Source Action
B1342 ECU is Defective DSM REFER to MULTIFUNCTION ELECTRONIC MODULES article.
B1530 Memory Set Switch Circuit Short to Ground DSM Go to Pinpoint Test C .
B1534 Memory 1 Switch Circuit Short to Ground DSM Go to Pinpoint Test C .
B1538 Memory 2 Switch Circuit Short to Ground DSM Go to Pinpoint Test C .
B1987 Pedal Forward/Rearward Motor Stalled DSM Go to Pinpoint Test C .
B1988 Pedal Position Forward Switch Circuit Short to Ground DSM Go to Pinpoint Test C .
B1989 Pedal Position Rearward Switch Circuit Short to Ground DSM Go to Pinpoint Test C .
B2971 Pedal Position Input Circuit Short to Ground DSM Go to Pinpoint Test C .
B2972 Pedal Position Input Circuit Short to Battery DSM Go to Pinpoint Test C .
B2477 Module Configuration Failure DSM REFER to MODULE CONFIGURATION article.
U1950 UBP Communication Bus Fault DSM REFER to MODULE COMMUNICATIONS NETWORK article.
U2306 UBP Invalid Data From Node ID $60 DSM REFER to MODULE COMMUNICATIONS NETWORK article.

For a complete list of DSM DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES article.

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