Test Description

The number(s) below refer to the step number(s) on the diagnostic table.

1. 2. This step will test the if the sunroof will slide to the open position. If it opens, then inspect the sunroof limit switch LS2 for a stuck switch causing an intermittent short to ground.
2. 4. Testing for a short to ground in the sunroof limit switch LS2 circuit or a stuck or closed limit switch.
   Fig 1: Power Sunroof Does Not Open

   Courtesy of GENERAL MOTORS CORP.