Symptom Troubleshooting Chart - Horn

SYMPTOM TROUBLESHOOTING - HORN

Problem	Possible Cause	Action
No communication with the smart junction box (SJB)	SJB Circuitry Fuse(s)	See SYMPTOM TROUBLESHOOTING CHART - COMMUNICATIONS NETWORK .
Horn does not sound	Fuse(s) Circuitry Horn switch Horn SJB	See HORN DOES NOT SOUND .
Horn sounds continuously	Horn relay (part of the SJB) Circuitry Horn switch	See HORN SOUNDS CONTINUOUSLY .
DTC B1217 and B1218 - Horn Relay Coil Circuit Failure	Horn relay (part of the SJB) Circuitry Horn switch	See DTC B1717 AND B1218 - HORN RELAY COIL CIRCUIT FAILURE .