Test Description
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Savana Special, 2003 GMC Savana Camper Special, 2003 GMC Savana, 2003 Chevrolet RV Cutaway, and 2003 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
The numbers below Refer to the step numbers on the diagnostic table.
- 2. This step test determines if the problem exists in the DRL control/BCM or other circuitry.
- 3. This step test determines if the problem exists in the wiring or the BCM.
- 7. This step test determines if the problem exists in the wiring or the BCM.
- 9. After replacement of the BCM you must calibrate the new module for proper operation.