System Testing: Notes
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.
- Inoperative multifunction switch.
Refer to the DIAGNOSTIC TEST INDEX table, then go to the appropriate test. For individual component testing, refer to COMPONENT TESTS .
DIAGNOSTIC TEST INDEX
| Symptom | Test |
|---|---|
| Washers Inoperative | A |
| Wipers Inoperative | B |
| Wipers Inoperative At Low Speed | C |
| Wipers Inoperative At Interval Setting | D |
| Wipers Do Not Park Properly | E |
| Wipers Continue To Operate When Switch Is Turned Off | F |