Diagnostic Starting Point - Body Control System
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Begin the diagnosis of the body control system by performing the diagnostic system check for the system in which the customer concern is apparent. The diagnostic system check will direct you to the correct procedure for diagnosing the system and where the procedure is located.