Horn Switch: Testing and Inspection

Horn Switch Test

NOTE: Before horn switch test, check for blown No. 12 (15A) fuse in the under-dash fuse/relay box.

1. Turn the steering wheel 180 degrees from the center position and remove the cover (A).





2. Disconnect the horn switch 1P connector (B)

3. Using a jumper wire, connect cable reel side 1P connector (C) to body ground.

- If the horns sound, replace the driver's airbag assembly.
- If the horns don't sound, go to step 4.

4. Remove the jumper wire from the cable reel side 1P connector.

5. Remove the steering column covers Service and Repair.

6. Disconnect the cable reel 20P connector (A) to the dashboard wire harness.





7. Using a jumper wire, connect terminal No. 1 of the dashboard wire harness 20P connector to body ground.

- If the horns sound, check these items:
- Cable reel.
- An open in the wire (cable reel subharness).
- If the horns do not sound, check these items:
- MICU
- Horns
- An open in the wire.