Module Communications Network DTCS

COMMUNICATION NETWORK DIAGNOSTIC TROUBLE CODES (DTC) LIST

DTC	Description	Source	Perform Test
U0002	High Speed CAN Communication Bus Performance	Instrument cluster	Go to Pinpoint Test E .
U0100	Lost Communication With ECM/PCM 4WD Module	Smart junction box (SJB)	CLEAR the DTC. REPEAT the network test with the scan tool. FOLLOW the appropriate pinpoint test for the module which fails the network test.
U1900	CAN Communication Bus Fault - Receive Error	Occupant classification sensor module	Go to Symptom Chart for module that failed network test.
U1900	CAN Communication Bus Fault - Receive Error	RCM	Go to Symptom Chart for module that failed network test.
U1900	CAN Communication Bus Fault - Receive Error	SJB	Go to Symptom Chart for module that failed network test.
U2023	Fault Received From External Node	SJB	RETRIEVE and FOLLOW non-network DTCs from other modules. REFER to MULTIFUNCTION ELECTRONIC MODULES article.
U2023	Fault Received From External Node	Instrument cluster	RETRIEVE and FOLLOW non-network DTCs from other modules. REFER to MULTIFUNCTION ELECTRONIC MODULES article.
U2023	Fault Received From External Node	4WD control module	RETRIEVE and FOLLOW non-network DTCs from other modules. REFER to MULTIFUNCTION ELECTRONIC MODULES article.