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 DIAGNOSTIC TEST INDEX table, then go to the appropriate test. For individual component testing, see COMPONENT TESTING .
DIAGNOSTIC TEST INDEX
| Symptom | Test |
|---|---|
| Washers Inoperative | A |
| Wipers Inoperative | B |
| Low Speed Wipers Inoperative | C |
| High Speed Wipers Inoperative | D |
| Intermittent Wipers Do Not Operate Properly | E |
| Wipers Do Not Park Properly | F |
| Wipers Stay On Continuously | G |
| Headlights Inoperative When Wipers Are On | H |