Diagnostic Aids
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 Pontiac Grand Prix, 2002 Pontiac Bonneville, 2002 Chevrolet Monte Carlo, 2002 Chevrolet Impala, and 2002 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
An overcharging condition may set this DTC. Thoroughly inspect any circuitry that is suspected of causing an intermittent complaint.
An overcharging condition may set this DTC. See appropriate GENERATORS & REGULATORS article in STARTING & CHARGING SYSTEMS. Thoroughly inspect any circuitry that is suspected of causing an intermittent complaint. See INTERMITTENT CONDITIONS under SELF-DIAGNOSTIC SYSTEM.