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Pinpoint Test G : The HUD Module Is Inoperative

WARNING: This page is about a different car, the 2015 Lincoln MKS. However, it is still accessible from the selected car via links, so may be relevant.

  1. G1 CHECK FOR HUD MODULE LED PROVE OUT TEST

    NOTE: Remove the vehicle from the extreme heat source or sunload condition prior to testing the vehicle.

    • Ignition ON.
    • While placing the ignition switch in RUN, observe the HUD module LEDs.

    Do the HUD module LEDs illuminate? 

    Yes  The HUD Module LEDs are operating correctly at this time. The concern may have been caused by extreme temperatures.
    No  GO to  G2.

  2. G2 CHECK THE COMMUNICATION NETWORK

    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Network Test.
    • Using a scan tool, perform the network test.

    Does the HUD module pass the network test? 

    Yes  GO to  G3.
    No  REFER to Module Communications Network , The HUD module Does Not Respond To The Scan Tool.

  3. G3 CHECK THE DTCs FROM THE HUD MODULE SELF-TEST

    • Enter the following diagnostic mode on the scan tool: HUD Module Self-Test.

    Are any DTCs recorded? 

    Yes  REFER to DTC Charts .
    No  GO to  G4.

  4. G4 CHECK THE DTCs FROM THE C-CM SELF-TEST

    • Enter the following diagnostic mode on the scan tool: C-CM Module Self-Test.

    Are any DTCs recorded? 

    Yes  REFER to Cruise Control Non-Adaptive .
    No  GO to  G5.

  5. G5 CHECK FOR CORRECT HUD MODULE OPERATION

    • Disconnect and inspect the HUD module connector.
    • Repair:
      • corrosion (install new connector or terminals - clean module pins)
      • damaged pins - install new terminals/pins
      • pushed-out pins - install new pins as necessary
    • Reconnect the HUD module 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 TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new HUD module. REFER to Head Up Display (HUD) Module .
    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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