Body lights flicker or doors lock erratically on your vehicle? U0443 signals invalid data from Body Control Module B—diagnose the communication fault now.

Your vehicle shows a communication error. Invalid data from ECM/PCM B can compromise safety – scan network, check wiring, reprogram or replace module.

Emissions warning on your vehicle? Invalid data from emissions critical control can cause inspection failure—scan the module and reprogram or replace it.

Pedestrian alert light flashes on your car? Invalid data from the Pedestrian Alert Control Module can mute warnings—scan, check wiring, reprogram/replace.

All‑terrain control warning on your vehicle? Invalid data from the All Terrain Control Module can affect stability; scan and reprogram the module now.

Trailer brake warning on your vehicle? Invalid data from the Trailer Brake Control Module can reduce stopping ability—scan, reprogram or replace module.

Rear diff warning flash on your vehicle? Invalid data from the rear differential control module can impair traction. Scan, test wiring, replace, reprogram.

Front differential error on your vehicle? Invalid data from the front differential control module can affect traction—scan module, reprogram or replace.

Steering feels loose or a light flashes on your vehicle? Invalid data from rear power‑steering control module can degrade handling. Scan reprogram/replace.

Roll sway warning on your vehicle? Invalid data from active roll control module—scan the module, check wiring, and re‑program or replace it for safety.