Test Description

WARNING: This page is about a different car, the 2002 Buick Regal and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

2. This step will test the express open feature and if the feature is operating properly, then inspect the limit switch low reference circuit for a poor condition or intermittent.

Fig 1: Identifying Power Sunroof Express Open Feature Inoperative Diagnostic Table

Courtesy of GENERAL MOTORS CORP.