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Home >> Lincoln >> 2021 >> Aviator Base, AWD >> Repair and Diagnosis >> Electrical >> Gauges >> Instrumentation, Message Center And Warning Chimes (2 Of 2) >> Diagnosis And Testing >> Instrumentation, Message Center and Warning Chimes - Vehicles With: Head Up Display (HUD) >> Pinpoint Tests >> Pinpoint Test F : The Outside Air Temperature Display Is Inoperative

Pinpoint Test F : The Outside Air Temperature Display Is Inoperative

  1. Normal Operation and Fault Conditions 

    See Outside Air Temperature. REFER to: Head Up Display (HUD) - System Operation and Component Description .

    Possible Sources 

    • Communication concern
    • HVAC module concern
    • HUD display settings
    • HUD module

  2. F1 CHECK THE OUTSIDE AIR TEMPERATURE DISPLAY IN THE IPC (INSTRUMENT PANEL CLUSTER)

    • Ignition ON.

    • Verify the outside air temperature display feature operates correctly in the IPC.

    Does the inoperative feature operate correctly in the IPC? 

    Yes  GO to F2 
    No  DIAGNOSE the inoperative display in the IPC. REFER to: Instrumentation, Message Center and Warning Chimes .

  3. F2 CHECK THE HUD (HEAD UP DISPLAY) MENU SETTING

    • Using the RH upper steering wheel switch, select the HUD setup.

    • Verify the outside air temperature display is set to on.

    Is the outside air temperature display set to on? 

    Yes  GO to F3 
    No  If the HUD can be set to display the outside air temperature, the HUD is operating correctly at this time. The HUD was not set to display the outside air temperature. If the HUD cannot be set to display the outside air temperature, GO to Pinpoint Test A .

  4. F3 PERFORM THE HUD (HEAD UP DISPLAY) MODULE SELF-TEST

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

    • Check for recorded Diagnostic Trouble Codes (DTCs) from the HUD module self-test.

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to DTC Chart: HUD Module in this information. Refer to Diagnostic Trouble Code (DTC) Chart 
    No  GO to F4 

  5. F4 PERFORM THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE SELF-TEST

    • Ignition ON.

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

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to: Climate Control System .
    No  GO to F5 

  6. F5 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

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

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to: Communications Network .
    No  INSTALL a new HUD module. REFER to: Head Up Display (HUD) Module .
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