Diagnostic Aids
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
If ignition voltage is outside normal operating range, (9-16 volts), AIR BAG warning light will turn on with no DTC's set.
NOTE:
For circuit number and wire color identification, see WIRING DIAGRAMS .