Horn System (Service Information): Description

An electrically-operated horn system is standard factory-installed equipment in this vehicle. The horn system features one low-note horn unit. The Power Distribution Center (PDC) contains the horn fuse and the horn relay. Pressing either side of the upper surface of the Driver Air Bag (DAB) trim cover in the center of the steering wheel actuates the horn switch contacts, which provides the vehicle operator with a convenient, audible signaling device that can be used to alert pedestrians or the operators of other vehicles in near Proximity.

The horn system includes the following major components, which are described in additional detail elsewhere in this service information:

• Horn Relay  - The horn relay is an International Standards Organization (ISO) micro relay located within the PDC. The PDC is located on the left side of the engine compartment.
• Horn  - The low note electromagnetic diaphragm-type trumpet horn is secured by a mounting bracket to the right outboard side of the right front fender load beam above the right front wheel house splash shield.
• Horn Switch Plate  - The floating horn switch plate is secured to the back of the DAB housing within the steering wheel hub cavity and also serves as the mounting bracket between the DAB and the steering wheel.
• Power Distribution Center  - The PDC is located on the left side of the engine compartment. Refer to CENTER, POWER DISTRIBUTION (PDC), DESCRIPTION .

Hardwired circuitry connects the various horn system components to each other through the electrical system of the vehicle. These hardwired circuits are integral to several wire harnesses, which are routed throughout the vehicle and retained by many different methods. These circuits may be connected to each other and to the vehicle electrical system through the use of a combination of soldered splices, splice block connectors and many different types of wire harness terminal connectors and insulators. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds. For proper wire repair, and connector repair procedures. Refer to STANDARD PROCEDURE , or REMOVAL , or INSTALLATION .