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 left window up switch input circuit (Brown wire).
- Left window up switch circuit is shorted to ground internally or is sticking.
- Left window up switch was depressed for longer than 20 seconds.
If Brown wire is shorted to ground or left window up switch is stuck closed, left window will remain up at all times. Using scan tool, select LDCM inputs and monitor left window up switch status. If scan tool displays ACTIVE, disconnect master switch assembly. If status did not change, check Brown wire for short to ground.