U codes - Network
Communication between control modules on the vehicle network.
- U0001 High Speed CAN Communication Bus
- U0100 Lost Communication With ECM/PCM "A"
- U0101 Lost Communication With TCM
- U0121 Lost Communication With Anti-Lock Brake System (ABS) Control Module
- U0140 Lost Communication With Body Control Module
- U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module