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Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 246 (Handles, Locks, Latches And Entry Systems) >> Diagnosis And Testing >> Locks, Latches and Entry Systems >> Pinpoint Tests >> Pinpoint Test C: All Door Locks Are Inoperative >> Testing

Pinpoint Test C: All Door Locks Are Inoperative: 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. C1 CHECK CIRCUIT 906 (RD/OG) FOR AN OPEN 
    • Disconnect: SJB C2280g.
    • Disconnect: BJB fuse 1 (80A).
    • Measure the resistance between the SJB C2280g-1, circuit 906 (RD/OG), harness side and the BJB fuse 1 cavity, circuit 906 (RD/OG), harness side.
      Fig 1: Checking Circuit 906 (RD/OG) For An Open
      G03989237Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to C2.
    • No  : REPAIR the circuit. TEST the system for normal operation.
  2. C2 CHECK CIRCUIT 1763 (PK/BK) FOR AN OPEN OR A SHORT TO GROUND 
    • Disconnect: LH Front Door Lock Actuator C525.
    • Disconnect: SJB C2280e.
    • Measure the resistance between the LH front door lock actuator C525-1, circuit 1763 (PK/BK), harness side and the SJB C2280e-13, circuit 1763 (PK/BK), harness side; and between the LH front door lock actuator C525-1, circuit 1763 (PK/BK), harness side and ground.
      Fig 2: Checking Circuit 1763 (PK/BK) For An Open Or Short To Ground
      G03989238Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms between the LH front door lock actuator and the SJB, and greater than 10,000 ohms between the LH front door lock actuator and ground? 
    • Yes  : GO to C3.
    • No  : REPAIR the circuit. TEST the system for normal operation.
  3. C3 CHECK FOR CORRECT SJB MODULE OPERATION 
    • Disconnect all the SJB module connectors.
    • Check for:
      • corrosion
      • pushed-out pins
    • Connect all the SJB module 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 . PROGRAM all RKE transmitters. REFER to REMOTE KEYLESS ENTRY TRANSMITTER PROGRAMMING . INFORM the customer that any RKE transmitters not present need to be programmed. 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.
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