Horn Switch Failure

NAME OF CODE
Horn Switch Failure

WHEN MONITORED
Continuously with battery connected and IOD fuse installed.

SET CONDITION
The BCM has sole control of the horn relay. The BCM will monitor the horn switch (in the steering wheel) for an active signal and will sound the horn. If the horn switch remains grounded for more than 30 seconds, the BCM will turn off the horn output and 10 seconds later will set the code. The horn will remain disabled until the horn switch is ungrounded for 22 seconds to allow the horn to cool down.

POSSIBLE CAUSES
- Shorted horn relay control circuit
- Defective horn switch
- Defective BCM