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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 - Module Controlled >> Pinpoint Tests >> Pinpoint Test G: All Door Locks Are Inoperative

Pinpoint Test G: All Door Locks Are Inoperative

WARNING: This page is about a different car, the 2005 Ford RV Cutaway, 2005 Ford Econoline, 2005 Ford E450 Super Duty, and 2005 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
  1. G1 CHECK CIRCUIT 517 (BK/WH) FOR VOLTAGE 
    • Key in OFF position.
    • Disconnect: Vehicle Security Module C203a.
    • Measure the voltage between the vehicle security module C203a-12, circuit 517 (BK/WH), harness side and ground.
      Fig 1: Measuring Voltage Between Vehicle Security Module And Ground
      G03891059Courtesy of FORD MOTOR CO.
    • Is voltage greater than 10 volts? 
    • Yes  : GO to G2.
    • No  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
  2. G2 CHECK CIRCUIT 57 (BK) FOR AN OPEN 
    • Disconnect: Vehicle Security Module C203b.
    • Measure the resistance between the vehicle security module C203b-14, circuit 57 (BK), harness side and ground.
      Fig 2: Measuring Resistance Between Vehicle Security Module And Ground
      G03891060Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms?
    • Yes  : GO to G3.
    • No  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
  3. G3 CHECK CIRCUIT 117 (PK/BK) FOR AN OPEN OR A SHORT TO GROUND 
    • Disconnect: LH Front Door Lock Actuator C525.
    • Measure the resistance between the vehicle security module C203a-22, circuit 117 (PK/BK), harness side and the LH front door lock actuator C525-1, circuit 117 (PK/BK), harness side; and between the vehicle security module C203a-22, circuit 117 (PK/BK), harness side and ground.
      Fig 3: Measuring Resistance Between Vehicle Security Module And Ground
      G03891061Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms between the vehicle security module and the LH front door lock actuator, and greater than 10,000 ohms between the vehicle security module and ground? 
    • Yes  : GO to G4.
    • No  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
  4. G4 CHECK FOR CORRECT VEHICLE SECURITY MODULE OPERATION 
    • Disconnect all the vehicle security module connectors.
    • Check for:
      • corrosion
      • pushed-out pins
    • Connect all the vehicle security 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 vehicle security module. REFER to MULTIFUNCTION ELECTRONIC MODULES . CLEAR the DTCs. REPEAT the self-test.
    • 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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