Horn System - Service Information

The dual-note horn system features dual electromagnetic horn units. The horn system includes the following major components:

 Horn - The two horns are located near the left side headlight.  Horn Fuse - The horn fuse is located in the Totally Integrated Power Module (TIPM).

 Horn Switch - The horn switch is located under the driver airbag assembly.

The horn system operates on battery current received through fuse 41 and 42 in the Totally Integrated Power Module. The horn system circuit is designed so that the system will remain operational, regardless of the ignition switch position.

In most cases, any problem involving continually sounding horns can be quickly alleviated by removing the fuses from the Totally Integrated Power Module (TIPM).

WARNING: Disable the airbag system before attempting any steering wheel, steering column, seat belt tensioner, side airbag, or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to take the proper precautions could result in accidental airbag deployment and possible personal injury.

BOTH HORNS INOPERATIVE 1. Faulty fuse. 1. Check the fuses in the Totally Integrated Power Module (TIPM). Replace the fuse and repair the shorted circuit or component, if

required. - 2. Faulty horn switch. 2. Refer to SWITCH-HORN for the proper diagnosis and testing procedure. Replace the horn switch or repair the open horn switch circuit, if required. - 3. Faulty horns. 3. Refer to HORN for the proper diagnosis and testing procedure. Replace the horns or repair the open horn circuit, if required. ONE HORN INOPERATIVE 1. Faulty horn. 1. Refer to HORN for the proper diagnosis and testing procedures. Replace the horn or repair the open horn circuit, if required. HORN SOUNDS CONTINUOUSLY 1. Faulty horn switch. 1. Refer to SWITCH-HORN for the proper diagnosis and testing procedure. Replace the horn switch or repair the shorted horn switch circuit, if required.

HORN