Symptom Related Diagnostic Procedures

Test 1 - Test 2:

Test 3 - Test 7:

Test 8 - Test 12:

Test 13 - Test 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