Module Communications Network DTCS

COMMUNICATION NETWORK DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC	Description	Source	Perform Test
U0073	Control Module Communication Buss Off	ABS module	The module could not communicate on the network at a point in time. The fault is not currently present. CLEAR the DTC. REPEAT the network test with scan tool.
U0100	Lost Communication With ECM/PCM	ABS module	CLEAR the DTC. REPEAT the network test with scan tool. FOLLOW the appropriate pinpoint test for the module which fails the network test.
U0102	Lost Communication With Transfer Case Control Module (4x4CM)	ABS module	CLEAR the DTC. REPEAT the network test with scan tool. FOLLOW the appropriate pinpoint test for the module which fails the network test.
U1900	CAN Communication Bus Fault-Recieve Error	ABS module	For module that failed network test, go to Symptom Chart.
U1900	CAN Communication Bus Fault-Recieve Error	Instrument cluster (IC)	For module that failed network test, go to Symptom Chart.
U1900	CAN Communication Bus Fault-Receive Error	4X4 control module	For module that failed network test, go to Symptom Chart.
U1950	UBP Communication Bus Fault	Driver seat module (DSM)	For module that failed network test, go to Symptom Chart.
U1950	UBP Communication Bus Fault	IC	For module that failed network test, go to Symptom Chart.
U2023	Fault Received From External Node	ABS module	RETRIEVE and FOLLOW non-network DTCs from other modules. REFER to MULTIFUNCTION ELECTRONIC MODULES article.
U2023	Fault Received From External Node	4X4 control module	RETRIEVE and FOLLOW non-network DTCs from other modules. REFER to MULTIFUNCTION ELECTRONIC MODULES article.
U2023	Fault Received From External Node	IC	RETRIEVE and FOLLOW non-network DTCs from other modules. REFER to MULTIFUNCTION ELECTRONIC MODULES article.
U2226	UBP Invalid Data From Node ID $10 [PCM]	Vehicle security module (VSM)	RETRIEVE and FOLLOW non-network DTCs from the PCM. REFER to the Introduction - Gasoline Engines article.
U2306	UBP Invalid Data From Node ID $60 [Instrument Cluster]	DSM	RETRIEVE and FOLLOW non-network DTCs from the IC. REFER to INSTRUMENT CLUSTER (IC), MESSAGE CENTER, AND WARNING CHIMES article.
U2471	Unexpected PRNDL State	DSM	RETRIEVE and FOLLOW non-network DTCs from other modules. REFER to MULTIFUNCTION ELECTRONIC MODULES article.
All other DTCs	-	-	REFER to MULTIFUNCTION ELECTRONIC MODULES article.