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Pinpoint Test At: The PRNDM Indicator Or Progressive Range Select Display Is Never On Or Never Displays P

WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
  1. Normal Operation and Fault Conditions 

    See PRNDM. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description .

    See Progressive Range Select Display. REFER to: Message Center - System Operation and Component Description .

    If the transmission gear display, transmission gear display mode or transmission range display message is missing for less than 5 seconds, the display remains in the last indication state (on or off), based upon the last message received.

    If the transmission gear display, transmission gear display mode or transmission range display message is missing for 5 seconds or longer, the IPC defaults the display off.

    Possible Sources 

    • Wiring, terminals or connectors
    • Communication concern
    • Transmission concern
    • GWM
    • PCM
    • TCM (diesel)
    • IPC

    Visual Inspection and Pre-checks 

    • Verify the vehicle is not in transport mode.

  2. AT1 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST

    • Ignition ON.

    • Using a diagnostic scan tool, perform the IPC self-test.

    Are any DTCs recorded? 

    Yes  REFER to the Diagnostic Trouble Code (DTC) Chart .
    No  GO to  AT2

  3. AT2 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

    • Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to: Controller Area Network (CAN) Module Communications Network .
    No  GO to  AT3

  4. AT3 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST

    • Using a diagnostic scan tool, perform the PCM self-test.

    Are any transmission related DTCs recorded? 

    Yes  REFER to the Master DTC Chart.
    No  If equipped with diesel engine, GO to  AT4 If not equipped with diesel engine, GO to  AT5

  5. AT4 PERFORM THE TCM (TRANSMISSION CONTROL MODULE) SELF-TEST

    • Using a diagnostic scan tool, perform the TCM self-test.

    Are any transmission related DTCs recorded? 

    Yes  REFER to the appropriate Automatic Transmission article.
    No  GO to  AT5

  6. AT5 CHECK FOR CORRECT IPC (INSTRUMENT PANEL CLUSTER) OPERATION

    • Ignition OFF.

    • Disconnect and inspect the IPC connector.

    • Repair:

      • corrosion (install new connector or terminals - clean module pins)
      • damaged or bent pins - install new terminals/pins
      • pushed-out pins - install new pins as necessary

    • Reconnect the IPC connector. Make sure it seats and latches correctly.

    • Operate the system and determine if the concern is still present.

    Is the concern still present? 

    Yes  CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new IPC. REFER to: Instrument Panel Cluster (IPC) .
    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.
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