Scheme 1
| WARNING | Keep fingers and other body parts out of sunroof opening at all times. |
The sun roof features consists of
- Sun roof glass
- Sun roof sun shade
The sunroof power sliding glass panel and sunshade can be positioned anywhere along its travel, rearward of glass panel front edge.
The sunroof is electrically operated from a switch located in the overhead console. To operate the sunroof the ignition switch must be in the Accessory or On/Run position. The open/close switch is a rocker style design that open or close the sunroof and the vent is an inner push button type. When pressing and releasing the open button once, the sunroof will express open to the comfort stop and the wind deflector will raise. If the button is pressed a second time, the sunroof will continue to open to full travel unless the button is released, at which time it will stop in that position. Pressing and holding the close button will close the sunroof. If the close button is released before the glass fully closes, the sunroof will stop in that position. The vent switch operates in a similar manner. The sunroof will also operate for up to fifteen minutes after the ignition key is turned off for customer comfort and convenience while parking.
Refer to SUNROOF DIAGNOSIS CHART for possible causes. Before beginning sunroof diagnostics verify that all other power accessories are in proper operating condition. If not, a common electrical problem may exist. Refer to SYSTEM WIRING DIAGRAMS for circuit, splice and component descriptions. Check the condition of the circuit protection (20 amp circuit breaker in the Junction Block). Inspect all wiring connector pins for proper engagement and continuity. Check for battery voltage at the power sunroof controller, refer to POWER TOP/SUNROOF for circuit information. If battery voltage of more than 10 volts is detected at the controller, proceed with the following tests (the controller will not operate at less than 10 volts).
Before beginning diagnosis for wind noise or water leaks, verify that the problem was not caused by releasing the control switch before the sunroof was fully closed. The sunroof module has a water-management system. If however, the sunroof glass is in a partial closed position, high pressure water may be forced beyond the water management system boundaries and onto the headlining.
Every time the sunroof module loses power it must be initialized. This is done by connecting power to the sunroof and moving the sunroof toward the closed position. When initialization occurs a slight "Kick" in the sunroof module will be seen and heard. This is the indication that the sunroof module is initialized
| SYMPTOM | POSSIBLE CAUSE |
|---|---|
| Sunroof motor inoperative. | Faulty control switch. Faulty circuit ground between sunroof module, control switch, and body harness. Faulty power circuit between sunroof module, control switch, and body harness. Faulty sunroof drive motor. Faulty sunroof module. |
| Audible whine when switch is depressed, sunroof does not operate. | Faulty sunroof drive motor. Binding cable. |
| Audible clicking or ratcheting when switch is pressed, sunroof does not operate. | Broken or worn drive cable. Worn drive motor gear. Mechanisms not synchronized. |
| Sunroof vents and opens, but does not close. | Broken or disengaged trough guide Binding cable. Faulty circuit. Faulty control switch. Faulty sunroof module. Faulty drive motor. |
| Sunroof vents, but does not open. | Binding cable or mechanism. Faulty circuit. Faulty switch. Faulty sunroof module. |
| Sunroof does not vent | Binding cable or mechanism. Faulty circuit. Faulty control switch. Faulty sunroof module. |
| Sunroof water leak. | Drain tubes clogged or kinked or disconnected from the sunroof. Glass panel improperly adjusted. Faulty glass panel seal. |
| Gurgling sound from sunroof | Low spot in drain hose routing, allowing water to stand. |
| Wind noise from sunroof. | Glass panel compression to the roof opening not consistent. Wind deflector not deploying properly. Glass not installed or adjusted properly. Faulty glass panel seal. |
| Buzz, Squeak, Rattles from sunroof | Loose or broken attaching hardware. No lubrication in track. Worn or broken mechanism. Cables bunched or kinked |
| Sunshade will not function or does not operate smoothly | Sunshade feet are missing, broken or loose. Track obstructions or interference. |
| Glass movement not consistent or glass does not operate smoothly | Glass and Track timing. Glass and Track alignment Cables and Guide alignment |
SUNROOF DIAGNOSIS CHART
See also:
• HEADLINER