Initial Inspection and Diagnostic Overview

1. Verify the customer concern by operating its system.
2. Visually inspect for obvious signs of mechanical or electrical damage.

VISUAL INSPECTION CHART

Mechanical
- Window glass

Electrical
- Fuse
- Window regulator
- Connection(s)
- Switch
- Circuit

NOTE: Make sure all electrical diagnoses in the pinpoint tests are carried out using a digital multimeter.

3. If the concern is not visually evident, verify the symptom and refer to the Symptom Chart. Symptom Related Diagnostic Procedures