Horns Inoperative

Horns Inoperative

Test Description









The numbers below refer to the step numbers on the diagnostic table.
5. This step tests for voltage at the battery positive voltage terminal of the horn relay coil.
7. This step tests for voltage at the battery positive voltage terminal of the horn relay switch. The HORN fuse supplies power to the battery positive voltage terminal of the horn relay switch.
12. The horn needs maximum current flow to operate properly. A high resistance, greater than 0.5 ohm, in the horn control circuit or the horn ground circuit could cause operating problems with the horn. Inspect the circuits for faults that would restrict current flow.
14. The horn relay control circuit includes the horn slip ring and the horn switch. The horn switch is part of the inflatable restraint steering wheel module. The horn slip ring and the horn switch must be tested for a high resistance, an open, or a short to voltage when testing the relay control circuit.