Pinpoint Test G: A Single Illumination Source Is Inoperative - Door Lock Control Switches
WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Use the correct probe adaptor(s) when making measurements. Failure to use the correct probe adaptor(s) may damage the connector.
- G1 CHECK CIRCUIT 194 (PK) FOR VOLTAGE
- Disconnect: Suspect Door Lock Control Switch
- Key in ON position.
- Measure the voltage between the driver door lock control switch C505-5, or the passenger door lock control switch C605-5, circuit 194 (PK), harness side and ground.
- Is the voltage greater than 10 volts?
- YES : Go to G2.
- NO : VERIFY the central junction box (CJB) fuse 17 (15A) is OK. If OK, REPAIR the circuit. TEST the system for normal operation.
- G2 CHECK CIRCUIT 57 (BK) FOR AN OPEN
- Key in OFF position.
- Measure the resistance between the driver door lock control switch C505-1, or the passenger door lock control switch C605-1, circuit 57 (BK), harness side and ground.
- Is the resistance less than 5 ohms?
- YES : INSTALL a new door lock control switch. REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS article. TEST the system for normal operation.
- NO : REPAIR the circuit. TEST the system for normal operation.