System Testing (Front Wipers): Notes
WARNING: This page is about a different car, the 1996 Mercury Villager. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Deactivate air bag system before performing any service operation involving steering column components. See appropriate AIR BAG RESTRAINT SYSTEM article. Do not apply electrical power to any component on steering column without first deactivating air bag system. Air bag may deploy.
CAUTION:
When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES
article in GENERAL INFORMATION before disconnecting battery.
Before performing any tests on wiper/washer system, check the following items to eliminate common problems:
- Wiper/washer related fuses.
- Damaged/stripped wiper motor shaft.
- Damaged/stripped wiper pivot arm shaft.
- Damaged washer pump.
- Loose or corroded connections.
- Damaged wiring harness.
- Binding windshield wiper pivot arm.
Identify wiper/washer symptom and perform appropriate PINPOINT TEST. See PINPOINT TEST INDEX table. For individual component testing, see COMPONENT TESTING .
PINPOINT TEST INDEX
| Symptom | Pinpoint Test |
|---|---|
| Windshield Washer Inoperative | A |
| Wipers Inoperative | B |
| Wipers Inoperative At High Speed | C |
| Wipers Inoperative At Low Speed | D |
| Wipers Inoperative At Interval Setting | E |
| Wipers Will Not Park Properly | F |
| Wipers Continue To Run When Switch Is Off | G |