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Home >> Ford >> 2005 >> Escape Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 174 (Exterior Lighting System) >> Diagnosis And Testing >> Parking, Rear and License Lamps >> Pinpoint Tests >> Pinpoint Test S: The Parking, Rear, Or License Plate Lamps Are On Continuously >> Testing

Pinpoint Test S: The Parking, Rear, Or License Plate Lamps Are On Continuously: Testing

WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
  1. S1 USE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCs) FROM THE SJB SELF-TEST 
    • Key in OFF position.
    • Using the recorded results from the SJB self-test:
    • Was DTC B1578 present? 
    • Yes  : GO to S2.
    • No  : GO to  S4.
  2. S2 CHECK CIRCUIT 1401 (BK/LG) FOR A SHORT TO GROUND 
    • Disconnect: SJB C2280d.
    • Disconnect: Headlamp Switch C205.
    • Measure the resistance between the headlamp switch C205-5, circuit 1401 (BK/LG) and ground.
      Fig 1: Measuring Resistance Between Headlamp Switch C205-5, Circuit 1401 (BK/LG) And Ground
      G03992828Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms? 
    • Yes  : GO to S3.
    • No  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
  3. S3 CHECK THE HEADLAMP SWITCH 
    • Carry out the headlamp switch component test. Refer to COMPONENT TESTING for component testing.
    • Is the headlamp switch OK? 
    • Yes  GO to  S5.
    • No  : INSTALL a new headlamp switch. CLEAR the DTCs. REPEAT the self-test.
  4. S4 CHECK CIRCUITS 1057 (OG/BK) AND 1058 (BN/WH) FOR A SHORT TO VOLTAGE 
    • Disconnect: SJB C2280a.
    • Disconnect: SJB C2280e.
    • Do the parking lamps continue to illuminate? 
    • Yes  : If the front lamps continue to illuminate, REPAIR circuit 1057 (OG/BK). TEST the system for normal operation.

      If the rear lamps continue to illuminate, REPAIR circuit 1058 (BN/WH). TEST the system for normal operation.

    • No  : GO to S5.
  5. S5 CHECK FOR CORRECT SJB OPERATION 
    • Disconnect all the SJB connectors.
    • Check for:
      • corrosion
      • pushed-out pins
    • Connect all the SJB 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 SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES . TEST the system for normal operation.
    • No  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.
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