Diesel Data: Automotive Repair

Horn Switch: Testing and Inspection




Horn Switch Test

1. Remove the driver's airbag assembly Driver's Airbag Replacement, and disconnect the horn switch 1P positive terminal from the cable reel (A).





2. Using a jumper wire, connect the cable reel side 1P connector (B) to body ground.

- If the horns sound, replace the horn plate.
- If the horns do not sound, go to step 3.

3. Remove the steering column covers Steering Column Removal/Installation.

4. Disconnect the dashboard wire harness 20P*1(13P*2 or 5P*3) connector (A) from the cable reel.





5. Using a jumper wire, connect terminal No. 11*1(No. 1*2, *3) of the dashboard wire harness 20P*1(13P*2 or 5P*3) connector to body ground.

- If the horns sound, replace the cable reel Service and Repair.
- If the horns don't sound, check these items:
- No. 13 (20 A) fuse in the under-hood fuse/relay box.
- Relay control module in the under-hood fuse/relay box.
- Horns Service and Repair.
- An open in the wire.