Operation CHARM: Car repair manuals for everyone.

Horn

Test 1 - 2:




Test 3 - 7:




Test 8 - 12:




Test 13 - 15:






SYMPTOM
HORN INOPERATIVE

POSSIBLE CAUSES
- Horn relay
- Body control module internal malfunction
- Open horn switch
- Horn/radio control mux circuit open
- Clockspring
- Horn/radio control mux circuit open
- Body control module internal malfunction
- Open fuse # 8
- Junction block - open fused B(+) circuit
- Junction block - open horn relay control circuit
- Body control module internal malfunction
- Horn relay
- Junction block - open horn relay output circuit
- Open horn relay output circuit
- Open ground circuit
- Open horn