Test D: All Door Locks Operate From One Switch Only
WARNING: This page is about a different car, the 1997 Mercury Tracer and 1997 Ford Escort. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect inoperative door lock switch. Test door lock switch. See DOOR LOCK SWITCH TEST under COMPONENT TESTS. If left door lock switch is inoperative, go to next step. If right door lock switch is inoperative, go to step 3). If switch is not okay, replace switch.
- Measure resistance between ground and master window/door lock switch harness connector Black wire. See Fig 1 . Resistance should be less than 5 ohms. If resistance is less than 5 ohms, repair Blue or Gray wire between master window/door lock switch harness connector and door lock relay connector. See WIRING DIAGRAM . If resistance is not less than 5 ohms, repair Black wire between master window/door lock switch harness connector and ground.
- Measure resistance between ground and right window/door lock switch harness connector Black wire. See Fig 2 . Resistance should be less than 5 ohms. If resistance is less than 5 ohms, repair Blue or Gray wire between right window/door lock switch harness connector and door lock relay connector. See WIRING DIAGRAM . If resistance is not less than 5 ohms, repair Black wire between right window/door lock switch harness connector and ground.