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Home >> Ford >> 2005 >> Escape Hybrid, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1009 (Exterior Lighting System) >> Diagnostic Tests >> Parking, Rear and License Plate Lamps >> Pinpoint Tests >> Pinpoint Test P: The Parking, Rear Or License Plate Lamps Are On Continuously >> Pinpoint Test P: The Parking, Rear Or License Plate Lamps Are On Continuously

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

WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
  1. P1 USE THE RECORDED DTCs FROM THE SJB SELF-TEST 
    • Check the recorded results from the SJB self-test.
    • Was DTC B1578 recorded? 
    1. YES  : Go to  P2.
    2. NO  : Go to  P4.
  2. P2 CHECK THE HEADLAMP SWITCH 
    • Key in OFF position.
    • Disconnect: Headlamp Switch C205
    • Carry out the headlamp switch component test. Refer to appropriate COMPONENT TESTING article.
    • Is the headlamp switch OK? 
    1. YES  : Go to  P3.
    2. NO  : INSTALL a new headlamp switch. REFER to Headlamp Switch . CLEAR the DTCs. REPEAT the self-test.
  3. P3 CHECK CIRCUIT CLS05 (BU/GY) FOR A SHORT TO GROUND 
    • Disconnect: SJB C2280b
    • Measure the resistance between the headlamp switch C205-5, circuit CLS05 (BU/GY), harness side and ground.
      • Fig 1: Checking Circuit For Short To Ground
      GF0023464Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms? 
    1. YES  : Go to  P6.
    2. NO  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
  4. P4 CHECK CIRCUIT CLS30 (VT/WH) FOR A SHORT TO VOLTAGE (TO REAR LAMPS) 
    • Key in OFF position.
    • Disconnect: SJB C2280d
    • Key in ON position.
    • Do the rear parking lamps continue to illuminate? 
    1. YES  : REPAIR the circuit. TEST the system for normal operation.
    2. NO  : Go to  P5.
  5. P5 CHECK CIRCUIT CLS30 (VT/WH) FOR A SHORT TO VOLTAGE (TO FRONT LAMPS) 
    • Key in OFF position.
    • Disconnect: SJB C2280e
    • Key in ON position.
    • Do the front parking lamps continue to illuminate? 
    1. YES  : REPAIR the circuit. TEST the system for normal operation.
    2. NO  : Go to  P6.
  6. P6 CHECK FOR CORRECT SJB OPERATION 
    • Key in OFF position.
    • Disconnect all the SJB connectors.
    • Check for:
      • corrosion
      • damaged pins
      • 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? 
    1. YES  : INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES article. TEST the system for normal operation.
    2. 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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