U — network
Communication between control modules over CAN and other networks.
U00xx
U0001 High-Speed CAN Communication Bus FaultU0073 Control Module Communication Bus Off
U01xx
U0100 Lost Communication with ECM/PCMU0101 Lost Communication with Transmission Control Module (TCM)U0102 Lost Communication with Transfer Case Control ModuleU0103 Lost Communication with Gear Shift Control ModuleU0104 Lost Communication with Cruise Control ModuleU0105 Lost Communication with Fuel Injector Control Module
U02xx
U0200 Lost Communication with Door Control Module AU0212 Lost Communication with Steering Column Control ModuleU0220 Lost communication with a module on the CAN network (U0220)U0230 Lost Communication with Rear Gate ModuleU0231 Lost Communication With Rain Sensor ModuleU0234 Lost Communication with Lane Departure Warning Module
U03xx
U0300 Internal Control Module Software IncompatibilityU0301 Software Incompatibility with ECM/PCMU0302 Software Incompatible with Transmission Control ModuleU0310 Software Incompatible With Fuel Pump Control Module
U04xx
U0401 Invalid Data Received from ECM/PCMU0402 Invalid Data Received from Engine Control Module (ECM/PCM)U0403 Invalid Data Received from Transmission Control Module (TCM)U0415 Invalid Data Received from ABS Control ModuleU0418 Invalid Data Received from Brake System Control ModuleU0420 Invalid Data Received from Power Steering Control Module
U10xx
U1000 Class 2 / CAN Communication Malfunction
U21xx
U2100 Initial Configuration Not Complete
U30xx
U3000 Control Module Fault (Internal Module Failure)U3001 Control Module Improper Wake-Up PerformanceU3003 Control Module Supply Voltage Out of Range