System Testing: Notes
WARNING:
Deactivate air bag system before performing any service operation involving steering column components. See 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 the GENERAL INFORMATION section 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 TEST INDEX . For individual component testing, see COMPONENT TESTING .
TEST INDEX
| Symptom | Pinpoint Test | |||
|---|---|---|---|---|
| Windshield Washer Inoperative | A | |||
| Front Wipers Inoperative | B | |||
| Front Wipers Inoperative At High Speed | C | |||
| Front Wipers Inoperative At Low Speed | D | |||
| Front Wipers Inoperative At Interval Setting | E | |||
| Front Wipers Will Not Park Properly | F | |||
| Front Wipers Continue To Run When Switch Is Off | G | |||
| Rear Window Washer Inoperative | H | |||
| Rear Wiper Inoperative | ||||
| Fixed Rear Window | J | |||
| Movable Rear Window | K | |||
| Rear Wiper Will Not Park Properly | ||||
| Fixed Rear Window | L | |||
| Movable Rear Window | (1) | |||
| Rear Wiper Will Not Turn Off | M | |||
| Rear Wiper Will Not Move To Liftgate Window Open Position | N | |||
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