Horn Switch: Testing and Inspection
Horn Switch Test1. Remove the steering column covers.
2. Disconnect the cable reel 20P connector (A) from the dashboard wire harness.
3. Using a jumper wire, connect the No. 4 terminal of the dashboard wire harness 20P connector to body ground.
- If the horns sound, go to step 4.
- If the horns don't sound, check these items:
- No. 13 (15 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.
4. Reconnect the cable reel 20P connector (A) to the dashboard wire harness.
5. Remove the driver's airbag assembly, and disconnect the horn switch 1P positive terminal from the cable reel (B).
6. Using a jumper wire, connect the cable reel side 1P connector (C) to body ground.
- If the horns sound, replace the driver's airbag assembly.
- If the horns do not sound, check these items:
- cable reel.
- an open in the wire.
NOTE: A broken or damaged cable reel can cause the horns to work intermittently. When checking the horn, rotate the cable reel back and forth to check for an intermittent open.