Test Description

Numbers below refer to the step numbers on the diagnostic table.
1. Always perform the BCM diagnostic system check before attempting to diagnose this DTC.
2. Checks the operation of the horn system.
3. Determines whether the BCM is faulty and not due to an intermittent malfunction.
4. Checks for a short to B+ in circuit 28.
5. Checks for a short to ground in circuit 28.
6. Determines if the malfunction is intermittent and not currently present.