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Pinpoint Test S: The Auto Stop-Start RTT (RECONFIGURABLE Telltale) Indicator Is Never Or Always On

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 Auto Stop-Start. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description .

    If the stop-start standby indicator message is missing for less than 5 seconds, the IPC defaults the auto stop-start RTT warning indicator to its last indication state (on or off), based upon the last message received.

    If the stop-start standby indicator message is missing for 5 seconds or longer, the IPC defaults the auto stop-start RTT warning indicator off.

    Possible Sources 

    • Communication concern
    • Message center concern
    • PCM concern
    • GWM concern
    • IPC

  2. S1 VERIFY THE AUTO STOP-START FEATURE IS ENABLED

    • Ignition ON.

    • NOTE: Refer to the Owner's Literature for message center menu navigation.

      Using the message center controls, verify the auto stop-start feature is enabled.

    Is the auto stop-start system enabled? 

    Yes  GO to  S2
    No  ENABLE the auto stop-start feature and INFORM the customer how to enable the feature.

  3. S2 CHECK THE MESSAGE CENTER OPERATION

    • Ignition ON.

    • Close all doors and the hood.

    • Clear all message center warnings by pressing the OK button for each warning present.

    • Monitor the door ajar RTT warning indicator.

    • Open the driver door.

    • Clear the message center popup warning.

    • Monitor the door ajar RTT warning indicator.

    Is the door ajar RTT warning indicator off with the door closed, and on with the door open? 

    Yes  GO to  S3
    No  GO to Pinpoint Test A 

  4. S3 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST

    • Ignition ON.

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

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to Diagnostic Trouble Code (DTC) Chart .
    No  GO to  S4

  5. S4 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST

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

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to the Master DTC Chart.
    No  GO to  S5

  6. S5 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

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

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to: Controller Area Network (CAN) Module Communications Network .
    No  DIAGNOSE the auto stop-start feature. Refer to the appropriate Engine System article.
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