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Pinpoint Test J: The STOPLAMP Are On Continuously

WARNING: This page is about a different car, the 2007 Lincoln MKX and 2007 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
  1. J1 DETERMINE IF ALL THE STOPLAMP ARE ILLUMINATED 
    • Key in OFF position.
    • Observe the stoplamp with the brake pedal released.
    • Are all of the stoplamp illuminated? 
    1. YES  : Go to  J3.
    2. NO  : Go to  J2.
  2. J2 CHECK THE STOPLAMP VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE 
    • Disconnect: SJB C2280d
    • Do the stoplamp continue to illuminate? 
    1. YES  : If the LH rear lamp continues to illuminate, REPAIR circuit CLS18 (GY/BN). CLEAR the DTCs. REPEAT the self-test.

      If the RH rear lamp continues to illuminate, REPAIR circuit CLS19 (VT/OG). CLEAR the DTCs. REPEAT the self-test.

    2. NO  : Go to  J7.
  3. J3 CHECK THE STOPLAMP SWITCH 
    • Disconnect: Stoplamp Switch C2064
    • Do the stoplamp continue to illuminate? 
    1. YES  : Go to  J4.
    2. NO  : INSTALL a new stoplamp switch. REFER to Stoplamp Switch  in this. CLEAR the DTCs. REPEAT the self-test.
  4. J4 CHECK THE PCM 
    • Disconnect: PCM C175b
    • Do the stoplamp continue to illuminate? 
    1. YES  : Go to  J5.
    2. NO  : Go to  J6.
  5. J5 CHECK CIRCUIT CCB08 (VT/WH) FOR A SHORT TO VOLTAGE 
    • Disconnect: SJB C2280b
    • Does the high mounted stoplamp continue to illuminate? 
    1. YES  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
    2. NO  : Go to  J7.
  6. J6 CHECK FOR CORRECT PCM OPERATION 
    • Disconnect all the PCM connectors.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect all the PCM 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 PCM. REFER to ELECTRONIC ENGINE CONTROLS . CLEAR the DTCs. REPEAT the self-test.
    2. NO  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
  7. J7 CHECK FOR CORRECT SJB OPERATION 
    • 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 . 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.
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