Trouble Shooting: Notes

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, 2003 Chevrolet Blazer, and 2002 GMC Sonoma. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: See CHARGING SYSTEM - GENERAL TROUBLE SHOOTING article in GENERAL INFORMATION.

Verify customer complaint by operating system. Visually inspect for obvious signs of mechanical and electrical damage. Inspect for blown fuses. Inspect for loose or corroded connections, damaged wiring harnesses and/or switches. Check for a broken or partially broken wire inside insulation, which could cause system malfunction but prove good in a continuity/voltage check with system disconnected. Ensure any aftermarket electronic equipment is properly installed. If fault is found, repair as necessary. If no fault is found, perform self-diagnostics. See SELF-DIAGNOSTIC SYSTEM .