Operation CHARM: Car repair manuals for everyone.

Horn Relay Open

Test 1-2:




Test 3:






SYMPTOM
HORN RELAY OPEN

WHEN MONITORED
Continuously with the ignition on.

SET CONDITION
The FCM has detected an open in the Horn Relay Control circuit.

POSSIBLE CAUSES
- Horn relay
- Intermittent condition
- PDC internal malfunction
- Front control module