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Pinpoint Test B: The Head Up Display (HUD) Module Is Inoperative

  1. B1 CHECK FOR HUD (HEAD UP DISPLAY) MODULE LED (LIGHT EMITTING DIODE) 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 Light Emitting Diodes (LEDs).

    Do the HUD module Light Emitting Diodes (LEDs) illuminate? 

    • Yes  : The HUD  module Light Emitting Diodes (LEDs) are operating correctly at this time. The concern may have been caused by extreme temperatures.
    • No  : GO to B2 
  2. B2 CHECK THE COMMUNICATION NETWORK 
    • Ignition ON.
    • Using a diagnostic scan tool, perform the network test.

    Does the HUD module pass the network test? 

  3. B3 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE HUD (HEAD UP DISPLAY) MODULE SELF-TEST 
    • Using a diagnostic scan tool, perform a HUD  module self-test.

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

    • Yes  : REFER to DTC CHARTS .
    • No  : GO to B4 
  4. B4 CHECK THE DTCS FROM THE CCM (CRUISE CONTROL MODULE) SELF-TEST 
    • Using a diagnostic scan tool, perform a CCM  self-test.

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

  5. B5 CHECK FOR CORRECT HUD (HEAD UP DISPLAY) OPERATION 
    • Ignition OFF.
    • Disconnect and inspect all HUD  module connectors.
    • 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 HUD  module connectors. Make sure they seat and latch correctly.
    • Operate the system and determine if the concern is still present.

    Is the concern still present? 

    • Yes  : CHECK OASIS  for any applicable Technical Service Bulletins (TSBs). If a TSB  exists for this concern, DISCONTINUE this test and FOLLOW TSB  instructions. If no Technical Service Bulletins (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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