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Home >> Lincoln >> 2022 >> Navigator Base, 4WD >> Repair and Diagnosis >> Electrical >> Gauges >> Instrumentation, Message Center And Warning Chimes (Diagnosis And Testing, General Procedures, Removal And Installation) >> Diagnosis And Testing >> Instrumentation, Message Center and Warning Chimes - Vehicles With: Head Up Display (HUD) >> Pinpoint Tests >> Pinpoint Test Q: U3003:17

Pinpoint Test Q: U3003:17

  1. DTC Fault Trigger Conditions 
    DTC Description Fault Trigger Condition
    HUD U3003:17 Battery Voltage: Circuit Voltage Above Threshold Sets in the HUD module in continuous memory if the HUD module detects battery voltage above 16 volts on the voltage supply circuit for 5 seconds or longer.

    Possible Sources 

    • Charging system concern
    • HUD module

    NOTE: DTC U3003:17 may be stored in the module memory due to past battery charging or vehicle jump starting events.
  2. Q1 CHECK FOR OVERCHARGING DIAGNOSTIC TROUBLE CODES (DTCS) SET IN OTHER MODULES

    • Ignition ON.

    • Using a diagnostic scan tool, perform self-test on all modules.

    • Retrieve the continuous memory Diagnostic Trouble Codes (DTCs) from all modules.

    Are any high voltage Diagnostic Trouble Codes (DTCs) set in more than one module? 

    Yes  DIAGNOSE the overcharging condition. REFER to: Charging System - 3.5L EcoBoost (272kW/370PS) .
    No  GO to  Q2
  3. Q2 CHECK THE BATTERY VOLTAGE

    • Turn off all interior/exterior lights and accessories.

    • Start and run the engine at approximately 2, 000 RPM for 3 minutes while monitoring the battery voltage.

    Does the battery voltage rise to 15.5 volts or higher? 

    Yes  DIAGNOSE the overcharging condition. REFER to: Charging System - 3.5L EcoBoost (272kW/370PS) .
    No  GO to  Q3
  4. Q3 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U3003:17

    • Ignition OFF.

    • Ignition ON.

    • Using a diagnostic scan tool, clear the continuous memory Diagnostic Trouble Codes (DTCs).

    • Carry out the HUD module self-test.

    Is DTC U3003:17 present? 

    Yes  INSTALL a new HUD module. REFER to: Head Up Display (HUD) Module .
    No  The system is operating correctly at this time. The DTC may have been set previously during battery charging or while jump starting the vehicle.