LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2002 >> Excursion 5.4 L, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 454 (Interior Lighting System) >> Diagnosis And Testing >> Interior Lighting >> Pinpoint Test D: The Demand Lighting Is Inoperative >> Pinpoint Test D: The Demand Lighting Is Inoperative
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Pinpoint Test D: The Demand Lighting Is Inoperative

WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
  1. D1 CHECK CIRCUIT 1005 (VT/OG) 
    • Key in OFF position.
    • Disconnect: Instrument Cluster C220a.
    • Measure the voltage between the instrument cluster C220a-6, circuit 1005 (VT/OG), harness side and ground.
      Fig 1: Checking Circuit 1005 (VT/OG)
      G03183400Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 

    Yes 

    GO to  D3 .

    No 

    GO to D2.

  2. D2 CHECK THE BATTERY SAVER RELAY 
    • Remove the battery saver relay.
    • Carry out the battery saver relay component test.

      Refer to COMPONENT TESTING for schematic and connector information.

    • Does the battery saver relay pass the component test? 

    Yes 

    REPAIR circuit 1005 (VT/OG). CLEAR the DTCs. REPEAT the self-test.

    No 

    INSTALL a new battery saver relay. CLEAR the DTCs. REPEAT the self-test.

  3. D3 CHECK CIRCUIT 705 (LG/OG) 
    • Key in OFF position.
    • Remove the battery saver relay.
    • Disconnect: Front Row Map Lamp C931.
    • Measure the resistance between the battery saver relay, pin 5, circuit 705 (LG/OG), harness side and the overhead console C931-4, circuit 705 (LG/OG), harness side.
      Fig 2: Checking Circuit 705 (LG/OG)
      G03183401Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 

    Yes 

    GO to D4.

    No 

    REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.

  4. D4 CHECK THE BATTERY SAVER RELAY 
    • Remove the battery saver relay.
    • Carry out the battery saver relay component test.

      Refer to COMPONENT TESTING for schematic and connector information.

    • Does the battery saver relay pass the component test? 

    Yes 

    GO to D5.

    No 

    INSTALL a new battery saver relay. CLEAR the DTCs. REPEAT the self-test.

  5. D5 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION 
    • Disconnect all the instrument cluster connectors.
    • Check for:
    • corrosion
    • pushed-out pins
    • Connect all the instrument cluster connectors and make sure they seat correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 

    Yes 

    INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . CLEAR the DTCs. REPEAT the self-test.

    No 

    The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.

scientia non olet · About LEMON Manuals