Horn Switch: Testing and Inspection
Horn Switch Test1. Remove the steering column covers.
2. Disconnect the dashboard wire harness B 5P connector (A) from the cable reel (B).
3. Using a jumper wire, connect the dashboard wire harness B 5P connector (A) No. 1 terminal to body ground.
- If the horn sound, go to step 4.
- If the horn doesn't sound, check these items:
- Horn relay
- No. 7 (15 A) fuse in the under-hood fuse/relay box
- Horn.
- An open in the wire
4. Reconnect the dashboard wire harness B 5P connector (A), and disconnect the horn switch positive 1P connector (B).
5. Using a jumper wire, connect the horn switch positive 1P connector (B) to ground.
- If the horn sound, go to step 6.
- If the horn does not sound, replace the cable reel.
6. Reconnect the horn switch positive 1P connector (B).
7. Using a jumper wire, connect the steering wheel to body ground.
8. Close the contacts between the horn plate and the contact plate.
- If the horn sound, replace the steering column.
- If the horn does not sound, replace the horn and contact plate.