Horn Switch: Testing and Inspection

Horn Switch Test

SRS components are located in this area. Review the SRS component locations Locations and the precautions and procedures Service and Repair before doing repairs or service.

1. Remove the steering column covers.

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






3. Using a jumper wire, connect the cable reel connector A (13P) 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 Service and Repair.
- Relay control module in the under-hood fuse/relay box.
- An open or high resistance in the wire.





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





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

6. Check for continuity between the cable reel connector A (13P) terminal No. 1 and the cable reel connector B (13P) 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 connector B (13P) 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.