Pinpoint Test P: All The Locks Operate From One Switch Only
- P1 CHECK THE SUSPECT DOOR LOCK CONTROL SWITCH
- Disconnect: Suspect Door Lock Control Switch Connector.
- Carry out the driver or passenger door lock control switch component test. Refer to COMPONENT TESTING
article.
- Is the suspect door lock control switch OK?
- Yes
: GO to P2.
- No
: INSTALL a new door lock control switch. REFER to DOOR LOCK CONTROL SWITCH . CLEAR the DTCs. REPEAT the self-test.
- P2 CHECK THE VOLTAGE TO THE INOPERATIVE DOOR LOCK CONTROL SWITCH
- Disconnect: Passenger Door Lock Control Switch C605 or Driver Door Lock Control Switch C505.
- Measure the voltage between the inoperative door lock control switch C605 (passenger), or C505 (driver), pin 4, circuit 1213 (WH/LB), harness side and ground.
Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
- Yes
: GO to P3.
- No
: REPAIR the circuit. TEST the system for normal operation.
- P3 CHECK THE CIRCUITRY RESISTANCE
- Measure the resistance between the inoperative door lock control switch C605 (passenger) pin 3, or C505 (driver) pin 2, circuit 119 (PK/YE), harness side and ground.
Courtesy of FORD MOTOR CO.
- Measure the resistance between the inoperative door lock control switch C605 (passenger) pin 5, or C505 (driver) pin 6, circuit 120 (PK/LG), harness side and ground.
Courtesy of FORD MOTOR CO.
- Are the resistances greater than 10,000 ohms?
- Yes
: INSTALL a new door lock control switch. REFER to DOOR LOCK CONTROL SWITCH . TEST the system for normal operation.
- No
: REPAIR the circuit(s) in question. TEST the system for normal operation.