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