Pinpoint Test E: DTC C1222 - Wheel Speed Mismatch, DTCs C1233 (LF), C1234 (RF), C1236 (Rear) - Wheel Speed Sensor Signal Fault: Notes
WARNING: This page is about a different car, the 2006 Ford Pickup, 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.