Operation CHARM: Car repair manuals for everyone.

Horns Sound Continuously

CAUTION: Continuous sounding of horns may cause relay to fail.

The horn switch (membrane) sometimes can be the cause without the switch being depressing.
1. Remove the horn relay from the junction block.
2. Using a continuity tester, test continuity from the X3 cavity of the horn relay to ground.
a. if continuity is detected, proceed to step Step 3.
b. If NO continuity, replace the horn relay
3. Remove the airbag/horn pad from the steering wheel and disengage horn connector.
4. Install horn relay into junction block.
a. If horn does not sound, replace airbag cover/ horn pad.
b. If horn sounds, repair grounded X3 circuit from junction block to clockspring in steering in steering column.