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 57 (BK) open
- circuit 66 (LB) open or short to ground
- RKE keypad
- vehicle security module