GM Service Manual Online
For 1990-2009 cars only

Many lighting malfunctions are attributed to the following conditions:

    • Loose connectors
    • Open or shorted wiring
    • Burned out bulbs
    • Bad switches
    • Inadequate ground
    • Blown fuses
        Many of these conditions can be handled by replacing a defective part.

Reinstall all of the components after performing a special procedure (such as sealing washers). Repair any body sealing components that may of been disturbed, (such as grommets) in order for the passenger compartment to remain properly sealed.