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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 849 (Door System - Handles, Locks, Latches And Entry Systems) >> Diagnosis And Testing >> Locks, Latches and Entry Systems - Non Module Controlled >> Pinpoint Tests >> Pinpoint Test C: The Door Locks Are Inoperative

Pinpoint Test C: The Door Locks Are Inoperative

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  1. C1 CHECK CIRCUIT 517 (BK/WH) FOR VOLTAGE 
    • Key in OFF position.
    • Disconnect: RH Door Lock Control Switch C629.
    • Measure the voltage between the RH door lock control switch C629-8, circuit 517 (BK/WH), harness side and ground.
      Fig 1: Measuring Voltage Between RH Door Lock Control Switch And Ground
      G03891044Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : GO to C2.
    • No  : REPAIR the circuit. TEST the system for normal operation.
  2. C2 CHECK CIRCUIT 57 (BK) FOR AN OPEN 
    • Measure the resistance between the RH door lock control switch C629-10, circuit 57 (BK), harness side and ground; and between the RH door lock control switch C629-6, circuit 57 (BK), harness side and ground.
      Fig 2: Measuring Resistance Between RH Door Lock Control Switch Circuit 57 And Ground
      G03891046Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : For a 2-door lock control switch system, GO to C3.

      For a 3-door lock control switch system, GO to  C4.

    • No  : REPAIR the circuit. TEST the system for normal operation.
  3. C3 CHECK CIRCUIT 117 (PK/BK) FOR AN OPEN OR A SHORT TO GROUND FROM THE LH DOOR 
    • Disconnect: LH Front Door Lock Actuator C525.
    • Disconnect: LH Door Lock Control Switch C508.
    • Measure the resistance between the LH door lock control switch C508-4, circuit 117 (PK/BK), harness side and the LH front door lock actuator C525-1, circuit 117 (PK/BK), harness side; and between the LH door lock control switch C508-4, circuit 117 (PK/BK), harness side and ground.
      Fig 3: Measuring Resistance Between LH Door Lock Control Switch And Ground
      G03891051Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms between the door lock control switch and the LH front door lock actuator, and greater than 10,000 ohms between the door lock control switch and ground? 
    • Yes  : REPAIR circuit 118 (PK/OG). TEST the system for normal operation.
    • No  : REPAIR circuit 117 (PK/BK). TEST the system for normal operation.
  4. C4 CHECK CIRCUIT 117 (PK/BK) FOR AN OPEN OR A SHORT TO GROUND FROM THE REAR DOOR 
    • Disconnect: LH Front Door Lock Actuator C525.
    • Disconnect: Rear Door Lock Control Switch C4121.
    • Measure the resistance between the rear door lock control switch C4121-5, circuit 117 (PK/BK), harness side and the LH front door lock actuator C525-1, circuit 117 (PK/BK), harness side; and between the rear door lock control switch C4121-5, circuit 117 (PK/BK), harness side and ground.
      Fig 4: Measuring Resistance Between Rear Door Lock Control Switch And Ground
      G03891052Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms between the door lock control switch and the LH front door lock actuator, and greater than 10,000 ohms between the door lock control switch and ground? 
    • Yes  : REPAIR circuit 118 (PK/OG). TEST the system for normal operation.
    • No  : REPAIR circuit 117 (PK/BK). TEST the system for normal operation.
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