Normal Operation
WARNING: This page is about a different car, the 2007 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
The RKE transmitters and the smart junction box (SJB) use a rolling code to prevent the codes from being "captured" by a code grabber. The system advances the counter in the RKE transmitter and in the SJB every time an RKE transmitter button is pressed.
DTC B2425 - sets when the SJB senses that the key fobs are out of synchronization.
Possible Causes
- RKE transmitter button pressed a substantial amount of times while outside the range of the vehicle
- RKE transmitter
- SJB