Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Horn Switch Test

Horn Switch Test

1. Remove the steering column covers.




2. Disconnect the dashboard wire harness 5P or 13P connector (A) from the cable reel (B)
3. Using a jumper wire, connect the No. 1 terminal of the dashboard wire harness 5P or 13P connector to body ground. The horn should sound.
- If the horn sounds, go to step 4.
- If the horn does not sound, check these items:
- No. 16 (15 A) fuse in the under-hood fuse/relay box.
- Horn relay.
- Horn.
- An open in the wire.




4. Reconnect the dashboard wire harness 5P or 13P connector (A) to the cable reel (B)
5. Remove the driver's airbag assembly.
6. Using a jumper wire, connect the 1P connector (C) to body ground.
- If the horn sounds, replace the driver's airbag assembly.
- If the horn does not sound, replace the cable reel.