Horn Switch: Testing and Inspection

Horn Switch Test

1. Remove the steering column covers. Steering Column Removal and Installation

2. Disconnect the dashboard wire harness 13P connector (A) from the cable reel (B).






3. Using a jumper wire, connect the dashboard wire harness 13P connector terminal No. 1 to body ground. The horns should sound.
- If the horns sound, go to step 4.

- If the horns do not sound, check these items:
- No. 13 (20 A) fuse in the under-hood fuse/relay box.

- Horn.

- Relay control module in the under-hood fuse/relay box.

- An open in the wire.





4. Reconnect the dashboard wire harness 13P connector (A) to the cable reel (B).

5. Remove the driver's airbag assembly, Drivers Airbag Replacement and disconnect the horn switch 1P positive terminal (C) from the driver's airbag.






6. Check for continuity between the dashboard wire harness 13P connector terminal No. 1 and the cable reel subharness 13P connector terminal No. 1.
- If there is continuity, go to step 7.

- If there is no continuity, replace the cable reel. Service and Repair





7. Check for continuity between the cable reel subharness 13P connector terminal No. 1 and the horn switch 1P positive terminal.
- If there is continuity, check the installation of the driver's airbag assembly and the steering wheel. If OK, replace the driver's airbag assembly.

- If there is no continuity, repair an open in the wire.