Network (U-Codes)
Wiring & ECU Communication
U0073
High
Control Module Communication Bus A Off
U0100
High
Lost Communication With ECM/PCM A
U0101
High
Lost Communication with TCM
U0121
Medium
Lost Communication With Anti-Lock Brake System (ABS) Control Module
U0140
Medium
Lost Communication With Body Control Module
U0155
High
Lost Communication With Instrument Panel Cluster (IPC) Control Module