Sae U0XXX Diagnostic Trouble Codes

WARNING: This page is about a different variant/trim than selected.

For additional Monitor Strategy information. Refer to Bosch Motronic MED 7.1.1 OBD System Strategy document.

Control module and output signals

DTC	Error Message	Diagnostic Procedure	Malfunction Criteria and Threshold Value	Secondary Parameters with Enable Conditions	Monitoring Time Length	Frequency of checks, MIL Illumination
U0001	High Speed CAN Communication Bus	-- Check terminal resistance of CAN-Bus CAN-BUS TERMINAL RESISTANCE, CHECKING .	Short to battery plus Short to ground Core connection	-	0.5 Seconds	Continuous 2 DCY
U0101	Lost Communication with TCM	-- Check terminal resistance of CAN-Bus CAN-BUS TERMINAL RESISTANCE, CHECKING .	Not active >5 Sec.	-	2 Seconds	Continuous 2 DCY
U0155	Lost Communication With Instrument Panel Cluster (IPC) Control Module	-- Check theEngine Control Module (ECM) -J623-. Refer to MOTRONIC ENGINE CONTROL MODULE, REPLACING .	No or unexpected information	-	0.5 Seconds	Continuous 2 DCY
U0302	Software Incompatibility with Transmission Control Module	-- Replace the Direct Shift Gearbox (DSG) Mechatronic -J743-. Refer to Repair information.	MT vehicle ECM received TCM signal AT vehicle ECM coded as MT vehicle	-	2 Seconds	Continuous 2 DCY
U0402	Invalid Data Received from Transmission Control Module	-- Check wiring connection between Engine Control Module (ECM) -J623- and the Direct Shift Gearbox (DSG) Mechatronic -J743- according to wiring diagrams	Invalid information	-	2 Seconds	Continuous 2 DCY