Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
System Testing: Notes
Tests can be performed to detect problem areas in power moon roof. Use TEST SYMPTOM INDEX to determine proper test.
| Symptom | Possible Cause | Test | ||||||
|---|---|---|---|---|---|---|---|---|
| Moon Roof Leaks | Incorrect Adjustment, Drain Tubes Blocked, Worn Or Damaged Seals, Moon Roof Housing Damaged | A | ||||||
| Excessive Wind Noise | Incorrect Adjustment, Worn Or Damaged Seals | B | ||||||
| Moon Roof Panel Rattles | Incorrect Glass Panel Adjustment, Front Track Rail Improperly Installed, Moon Roof Shade Improperly Installed, Worn Or Damaged Seals | C | ||||||
| Moon Roof Noisy During Operation | Incorrect Glass Panel Adjustment, Obstruction In Track Rail Or Troughs, Rear Panel Lifters Improperly Installed, Worn Or Damaged Motor | D | ||||||
| Moon Roof Does Not Operate | Damaged Circuit Breaker, Open Or Shorted Circuit, Worn Or Damaged Control Switch, Worn Or Damaged Motor | E | ||||||
| No Operation In Vent Position (1) | Rear Panel Lifters Improperly Installed, Rear Guide Pin Not Fully Engaged In Cam Slot | F | ||||||
| Moon Roof Does Not Stop Flush In Any Position (2) | Moon Roof Motor Out Of Time, Faulty Motor Microswitch, Faulty Motor, Faulty Relay, Open Or Shorted Circuit | G | ||||||
| Express Open Feature Does Not Work (3) | Open Or Shorted Circuit, Faulty Motor, Faulty Control Module | H | ||||||
| Moon Roof Will Not Slide Closed Or Open Up (3) | Open Or Shorted Circuit, Faulty Control Switch, Faulty Motor, Faulty Control Module | J | ||||||
| Moon Roof Will Not Slide Open Or Close From Vent Position (3) | Open Or Shorted Circuit, Faulty Control Switch, Faulty Motor, Faulty Control Module | K | ||||||
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Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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