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