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 missing or damaged
- Binding wiper pivot arm
- Binding wiper mounting arm and pivot shaft
- Empty washer reservoir
- Kinked or broken washer hoses

Electrical
- Fuse junction panel Fuse 9 (30 A)
- Wiper motor
- Washer pump
- Open connectors
- Corroded connectors
- Multi-function switch
- 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