U0121
Lost communication with the ABS control module
- System
- Network - modules not talking to each other
This is a standard code. It means the same thing on every make of vehicle.
Related codes
- U0100Lost communication with the engine control module
- U0101Lost communication with the transmission control module
- U0102Lost communication with the transfer case control module
- U0103Lost communication with the gear shift module
- U0104Lost communication with the cruise control module
- U0105Lost communication with the fuel injector control module
- U0106Lost communication with the glow plug control module
- U0107Lost communication with the throttle actuator control module