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.
- 4. Tests if ground is constantly being applied to the horn relay.
- 6. The horn relay control circuit includes the horn slip ring and the horn switch. The horn slip ring and the horn switch must be tested for a short to ground when testing the relay control circuit.