Trouble Shooting

WARNING: This page is about a different car, the 1998 Oldsmobile Eighty-Eight. However, it is still accessible from the selected car via links, so may be relevant.

Before proceeding with specific testing, check the following for proper operation:

Check courtesy lights for proper operation.
Check fuses, and replace as necessary.
Check and ensure grounds are clean and tight.
Check for broken or partially broken wire inside insulation, which could cause system malfunction, but prove good in a continuity/voltage check with system disconnected. These circuits may be intermittent or resistive when loaded, and if possible, should be checked by monitoring voltage drop with system operational (under load).
Check for proper installation of aftermarket electronic equipment.