Low voltage on Communication Bus B (-) in your vehicle triggers warning lights and may disable safety systems—scan bus, test wiring, seek repair.

Communication bus B (-) open on your vehicle? Loss of BCM functions can disable lights and locks—scan the network, verify wiring, consider module repair.

Warning lights on your vehicle? High voltage on Communication Bus B (+) can stop module communication—scan the bus and have the module serviced promptly.

Low voltage on Communication Bus B (+) in your vehicle? It can disrupt module communication—run a bus scan, check wiring, reprogram or replace the module.

Vehicle's lights or locks not working? U0039 = Vehicle Communication Bus B (+) Open – a wiring fault disabling systems. Scan, repair or replace module.

Bus B communication loss triggers warning lights on your vehicle—risking system operation. Scan the network, inspect wiring, and plan module reprogramming.

Lights, locks or windows not working? A Vehicle Communication Bus B fault can disable those systems in your car. Scan the bus, reprogram or replace module.

Bus A short on your vehicle? U0036 means Bus A (-) shorted to Bus A (+), risking lights, locks, and safety. Scan, test wiring, reprogram or replace module.

Your vehicle displays a U0035 – Vehicle Communication Bus A (-) High warning; loss of BCM control can disable lights and locks—scan, test wiring, reprog...

Lights flicker, doors lock, or warnings flash on your vehicle? Vehicle Communication Bus A (-) Low can shut down systems—scan and reprogram the module now.