System Operation Check

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Before making electrical checks, visually inspect all terminals for clean, tight connections. Ensure all charging system related fuses are okay. Check generator mounting bolts and drive belt tension. Ensure battery is fully charged and in good condition prior to testing charging system. See BATTERY TESTING & INSPECTION under ON-VEHICLE TESTING. Ensure battery cable connections are in good condition and free of corrosion. Ensure starting system is okay. See appropriate STARTERS article in ELECTRICAL.