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 5 (OG/LB) short to voltage
- Circuit 9 (LG/OG) short to voltage
- Circuit 511 (LG) short to voltage
- Stoplamp switch
- Multifunction switch
- Trailer brake control module