Power Sunroof Express Vent Open/Close Features Inoperative

Power Sunroof Express Vent Open/Close Features Inoperative

Diagnostic Aids

If the sunroof is experiencing an intermittent inoperative condition, check the sunroof switch ground circuit for an open. If the sunroof switch ground circuit is open, the switch may take a redundant path to ground through the switch illumination circuit. When the lights are turned ON, the redundant path to ground is removed and the sunroof will become inoperative.

If the sunroof open vent switch signal circuit is found to be short to voltage, the sunroof switch will most likely be open.

Test Description

Step 1 - Step 11:

Step 12 - Step 13:

The number below refers to the step number on the diagnostic table.
5. This step determines if the fault is the sunroof switch or the sunroof control module. It also tests the integrity of the vent express signal circuit. If the fuse in the jumper wire opens when you perform this test, a short to battery voltage may have occurred.