Communication System DTCS (U Codes)

COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE CHART

DTC	Description	Source	Action
U0073	Control Module Communication Bus Off	EATC Module	Go To PINPOINT TEST K: NO CONTROLLER AREA NETWORK (CAN) COMMUNICATION .
U0073	CAN Communication Bus Fault-Receive Error	Tire Pressure Monitoring System Module	Go To PINPOINT TEST K: NO CONTROLLER AREA NETWORK (CAN) COMMUNICATION .
U1900	CAN Communication Bus Fault Receive Error	ABS Module	Go To PINPOINT TEST K: NO CONTROLLER AREA NETWORK (CAN) COMMUNICATION .
U1900	CAN Communication Bus Fault Receive Error	PCM	Go To PINPOINT TEST K: NO CONTROLLER AREA NETWORK (CAN) COMMUNICATION .
U1900	CAN Communication Bus Fault Receive Error	Instrument Cluster	Go To PINPOINT TEST K: NO CONTROLLER AREA NETWORK (CAN) COMMUNICATION .
U1900	CAN Communication Bus Fault Receive Error	Tire Pressure Monitoring System Module	Go To PINPOINT TEST K: NO CONTROLLER AREA NETWORK (CAN) COMMUNICATION .
U1901	CAN Network No. 2 Communication Bus Fault-Receive Error	ABS Module	Go To PINPOINT TEST K: NO CONTROLLER AREA NETWORK (CAN) COMMUNICATION .
U1950	UBP Communication Bus Fault	Instrument Cluster	Go To PINPOINT TEST M: NO UNIVERSAL ASYNCHRONOUS RECEIVER-TRANSMITTER (UART) BASED PROTOCOL (UBP) NETWORK COMMUNICATION .
U1950	UBP Communication Bus Fault	Vehicle Security Module	Go To PINPOINT TEST M: NO UNIVERSAL ASYNCHRONOUS RECEIVER-TRANSMITTER (UART) BASED PROTOCOL (UBP) NETWORK COMMUNICATION .
U1950	UBP Communication Bus Fault	DSM	Go To PINPOINT TEST M: NO UNIVERSAL ASYNCHRONOUS RECEIVER-TRANSMITTER (UART) BASED PROTOCOL (UBP) NETWORK COMMUNICATION
U2013	Compass Module is Not Responding	Instrument Cluster	REFER to INFORMATION, GAUGES & WARNING DEVICES
U2023	Fault Received From External Node	PCM	Invalid data from another node, exclude invalid VIN data.
U2023	Fault Received From External Node	ABS Module	Invalid data from another node, exclude invalid VIN data.
U2051	One or More Calibration Files Missing or Corrupt	PCM	REFER to MODULE CONFIGURATION .
U2226	UBP Invalid Data From Node ID $10 (Invalid Vehicle Speed Data received for two consecutive times)	Vehicle Security Module	Go To PINPOINT TEST M: NO UNIVERSAL ASYNCHRONOUS RECEIVER-TRANSMITTER (UART) BASED PROTOCOL (UBP) NETWORK COMMUNICATION
U2306	UBP Invalid Data From Node ID $60	DSM	Go To PINPOINT TEST M: NO UNIVERSAL ASYNCHRONOUS RECEIVER-TRANSMITTER (UART) BASED PROTOCOL (UBP) NETWORK COMMUNICATION .