Possible Causes
WARNING: This page is about a different car, the 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
- circuit 1 (DB) short to ground
- circuit 6 (YE/LG) short to voltage
- clockspring
- horn switch
- CJB
- vehicle security module