Inspection and Verification

Trailer Lamps

Inspection and Verification

1. Verify the customer concern.

2. Verify the exterior lighting system of the vehicle operates correctly.

3. Visually inspect for obvious signs of electrical damage.

Visual Inspection Chart






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

5. If the concern is not visually evident, verify the symptom. GO to Symptom Chart. Symptom Related Diagnostic Procedures