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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 D : The DTE (Distance To Empty) -Low Fuel Indication, Vehicle Speed, Clock Or Outside Air Temperature Display Is Inoperative

Pinpoint Test D : The DTE (Distance To Empty) -Low Fuel Indication, Vehicle Speed, Clock Or Outside Air Temperature Display Is Inoperative

  1. Normal Operation and Fault Conditions 

    See DTE-Low Fuel Indication, Digital Speedometer, or Clock. REFER to: Head Up Display (HUD) - System Operation and Component Description .

    Possible Sources 

    • Communication concern
    • IPC concern
    • HUD display settings
    • HUD module

  2. D1 CHECK THE DTE (DISTANCE TO EMPTY) -LOW FUEL INDICATION, VEHICLE SPEED, OR CLOCK DISPLAY IN THE IPC (INSTRUMENT PANEL CLUSTER)

    • Ignition ON.

    • Verify the DTE-low fuel indication, digital speedometer or clock feature operates correctly in the IPC.

    Does the inoperative feature operate correctly in the IPC? 

    Yes  For the DTE-low fuel, clock and outside air temperature display, GO to D2  For all other displays, GO to D3 
    No  DIAGNOSE the inoperative display in the IPC. REFER to: Instrumentation, Message Center and Warning Chimes .
  3. D2 CHECK THE HUD (HEAD UP DISPLAY) MENU SETTING

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

    • Verify the DTE-low fuel, clock and outside air temperature display is set to on.

    Is the DTE-low fuel, clock and outside air temperature display is set to on? 

    Yes  GO to D3 
    No  If the HUD can be set to display the DTE-low fuel, clock and outside air temperature, the HUD is operating correctly at this time. The HUD was not set to display the DTE-low fuel, clock and outside air temperature. If the HUD cannot be set to display the DTE-low fuel, clock and outside air temperature, GO to Pinpoint Test A .
  4. D3 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 D4 
  5. D4 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 the DTC Chart: IPC. REFER to: Instrumentation, Message Center and Warning Chimes .
    No  INSTALL a new HUD module. REFER to: Head Up Display (HUD) Module .