Initial Inspection and Diagnostic Overview

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

VISUAL INSPECTION CHART

Mechanical
^ Roof opening panel damaged leaking
^ Seals
^ Guides
^ Cables
^ Adjustment

Electrical
^ Fuse 21 (40 A)
^ Wiring
^ Connectors
^ Roof opening panel adjust switch
^ Roof opening panel unit

3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.

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

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