Inspection And Verification
CAUTION:
Diagnosis by substitution from a donor vehicle is NOT
acceptable. Substitution of control modules does not guarantee confirmation of a fault and may also cause additional faults in the vehicle being checked and/or the donor vehicle.
NOTE:
Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage.
Visual Inspection
Mechanical Electrical - Glass panel assembly
- Glass panel seal
- Frame assembly
- Sunblind
- Deflector
- Access panel
- Roof opening panel cables
- Drain tube(s)
- Fuses
- Battery Junction Box (BJB)
- Central Junction Box (CJB)
- Wiring harness
- Loose or corroded connector(s)
- Roof opening panel motor and control module
- Roof opening panel switch
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the cause is not visually evident, verify the symptom and refer to the Symptom Chart, alternatively check for Diagnostic Trouble Codes (DTCs) and refer to the DTC Index.