Pinpoint Test B: A Single Power Window Is Inoperative - Driver
WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
- B1 CHECK FOR A SHORTED DRIVER WINDOW CONTROL SWITCH
- Key in OFF position.
- Disconnect: Driver Window Control Switch C504a, C504b.
- Check the driver window control switch. Refer to COMPONENT TESTING for schematic and connector information.
- Does the driver window control switch pass the component test?
Yes : GO to B2.
No : INSTALL a new driver window control switch. REFER to WINDOW CONTROL SWITCH . TEST the system for normal operation.
- B2 CHECK CIRCUIT 227 (YE) FOR AN OPEN OR SHORT TO GROUND
- Disconnect: Driver Window Motor C524.
- Measure the resistance between the driver window control switch C504a-6, circuit 227 (YE), harness side and the driver window motor C534-2, circuit 227 (YE), harness side; and between the driver window control switch C504a-6, circuit 227 (YE), harness side and ground.
- Is the resistance less than 5 ohms between the switch and motor, and greater than 10,000 ohms between the switch and ground?
Yes : GO to B3.
No : REPAIR the circuit. TEST the system for normal operation.
- B3 CHECK CIRCUIT 226 (WH/BK) FOR AN OPEN OR SHORT TO GROUND
- Measure the resistance between the driver window control switch C504a-5, circuit 226 (WH/BK), harness side and the driver window motor C524-1, circuit 226 (WH/BK), harness side; and between the driver window control switch C504a-5, circuit 226 (WH/BK), harness side and ground.
- Is the resistance less than 5 ohms between the switch and motor, and greater than 10,000 ohms between the switch and ground?
Yes : INSTALL a new driver window regulator motor. REFER to WINDOW REGULATOR MOTOR - FRONT DOOR .
No : REPAIR the circuit. TEST the system for normal operation.