Diagnostic Aids

WARNING: This page is about a different car, the 2000 Chevrolet Corvette and 1999 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

Following conditions may cause an intermittent malfunction:

Intermittent short to ground in right window switch up input circuit (Light Blue wire).
Right window up switch circuit is shorted to ground internally or is sticking.
Right window up switch was depressed for longer than 20 seconds.

If Light Blue wire is shorted to ground or right window up switch is stuck closed, right window will remain up at all times. Using scan tool, select RDCM inputs and monitor right window up switch status. If scan tool displays ACTIVE, disconnect right window switch. If status did not change, check Light Blue wire for short to ground.