Horn Switch: Testing and Inspection

Horn Switch Test




1. Remove the driver's airbag assembly, 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.




4. Disconnect the dashboard wire harness 13P (or 5P) connector (A) from the cable reel.
5. Using a jumper wire, connect the No. 1 terminal of the dashboard wire harness 13P (or 5P) connector to body ground.
- If the horns sound, replace the cable reel.
- 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.
- An open in the wire.