Diagnostic Aids

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, 2002 Chevrolet RV Cutaway, and 2002 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

Ask about the customer driving habits and any unusual driving conditions he or she might have, such as stop and go traffic or expressway driving.
A short in the Brake Switch circuit will cause the fuse to open.
Inspect the TCC Brake switch for proper mounting and operation.