2007 Wrangler JK Factory Service Manual 8 - ELECTRICAL

HORN SWITCH

DESCRIPTION

A center-blow, normally open, resistive membrane-type horn switch is secured in a plastic tray that is inserted in a pocket sewn on the front of the driver side airbag retainer strap. The horn switch is concealed behind the driver side airbag module trim cover.

The steering wheel and steering column must be properly grounded in order for the horn switch to function properly. The horn switch and plastic tray are serviced as a unit. If the horn switch is damaged or faulty, or if the driver side airbag is deployed, the horn switch and tray must be replaced as a unit.

OPERATION

When the center area of the driver side airbag trim cover is depressed, the electrically conductive grids on the facing surfaces of the horn switch membranes contact each other, closing the switch circuit. The completed horn switch circuit provides a ground for the control coil side of the horn relay, which activates the relay. When the horn switch is released, the resistive tension of the convex membrane separates the two electrically conductive grids and opens the switch circuit.

REMOVAL

WARNING:




1. Disconnect and isolate the battery negative cable.
2. Remove the trim cover from the driver side airbag.
(Refer to 8 - ELECTRICAL/RESTRAINTS/DRIVER AIRBAG - REMOVAL).
3. Remove the mounting fasteners.
4. Disconnect the electrical connector.
5. Remove horn switches by gently rocking the switch side to side while pulling outwards.

INSTALLATION

WARNING:




1. Install the horn switches.
2. Connect the electrical connector.
3. Install the trim cover onto the driver side airbag.
(Refer to 8 - ELECTRICAL/RESTRAINTS/DRIVER AIRBAG - INSTALLATION) for the procedure.
4. Reconnect the battery negative cable.