Flow of Diagnosis

1. Verify the customer concern by operating the windshield wiper and washer system to duplicate the condition.
2. Visually inspect for the following obvious signs of mechanical or electrical damage.

VISUAL INSPECTION CHART

Mechanical
- Wiper blade
- Binding wiper pivot arm
- Binding wiper mounting arm and pivot shaft
- Washer reservoir
- Washer hoses
- Multi-function switch

Electrical
- Fuse 10 (30 A)
- Wiper motor
- Washer pump
- Corroded connectors
- Thermal breaker internal to the wiper motor
- Circuit

3. If the concern is not visually evident, determine the symptom and proceed to Symptom Chart. Diagnosis by Symptom