The Sunroof Will Only Vent Or Only Slide Open - keywords control inoperative module motor roof switch timing

This PI was superseded to update models. Please discard PIT4305A.

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

The sunroof will only go to the vent position or only slide open. This concern can happen if the sunroof control module and sunroof motor are not timed correctly.

To time the sunroof motor and control module, follow the instructions below.

1. Using the vehicle switches, move the sunroof glass panel as near to the closed position as possible.
2. Without removing any wiring connections, unbolt the motor from the sunroof beam. Note: Once the motor is removed, the sunroof mechanism will be free to move.
3. Remove the glass and manually push the right and left drive cable plate until the closed position is reached (Closed position = 46mm between rear of locator and front of drive cable plate). See picture below.



4. With the sunroof electronics still connected the sunroof wire harness, but disconnected from the sunroof beam, press and hold the closed button until the motor stops.
5. Release and again press the close button and verify that the motor and electronics think that the sunroof is in the closed position.
6. Bolt the retimed motor / electronics into the mechanically retimed sunroof.
7. Verify correct sunroof operation.

Note: It is very important to understand the sunroof switch operation. If the sunroof module and motor were not timed correctly, the sunroof switch may operate the glass differently then it was designed to. This switch will slide forward and rearward, and this switch can also be pulled down or pushed up. Below is the instruction on how the sunroof switch operates.

To express-open the sunroof glass panel and sunshade, press/slide the switch rearward and release it. To stop the sunroof before it is completely open, press/slide the switch rearward again.

To close the sunroof, press/slide forward and hold the switch until the sunroof stops, lifts and seals at the back of the sunroof glass. Press/slide forward on the switch again to make sure the sunroof is fully closed.

To put the sunroof in the vent position, pull down on the front of the switch. Push up on the front of the switch to close it.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.