Operation CHARM: Car repair manuals for everyone.

Horn

Test 1 - 3:




Test 4 - 8:




Test 9:






SYMPTOM
HORNS INOPERATIVE

POSSIBLE CAUSES
- Horns
- Clockspring
- Horn switch
- Horn switch ground
- Horn switch sense open
- Check for IPM DTC's
- Horn relay
- Horn relay output circuit open
- Horn ground circuit open
- Integrated power module