Horn: Description and Operation
INTRODUCTIONWARNING: ON VEHICLES EQUIPPED WITH AIRBAG, SEE AIR BAGS AND SEAT BELTS/AIR BAGS FOR STEERING WHEEL REMOVAL.
Horn System:
The horn circuit consists of a horn switch, horn relay, and horn. The horn circuit feed is from the fuse to the horn relay in the Power Distribution Center (PDC). The PDC is mounted on the battery tray. When the horn switch is depressed, it completes the ground circuit. The horn relay coil closes contacts and allows current to flow to the horn. The horn is grounded to the headlamp ground connection.
HORN SWITCH
Horn Switch:
The horn switch is mounted between the outer and inner cover of the Driver Airbag Module. When the Driver Airbag is pressed the horn switch I makes contact to ground. The ground signal is carried to the horn relay and the horn sounds.
1. The horn switch grounds to the airbag housing.
2. If horn does not sound check for corrosion:
- Horn wire
- Horn switch ground connected to airbag metal housing
- Airbag to steering wheel
- Ensure horn wire is properly connected and insulator is in place on wire.