DTC U0074-00: Can Communication System: Bus Off Of Can-Bus Between Pcm And TCM

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U0074:00 (PCM - VIN Y) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	CAN communication system: Bus off of CAN-BUS between PCM and TCM
Detection condition	When there is an error in the CAN-BUS communication line.
Fail-safe	Not applicable
Possible cause	Malfunction in CAN communication line between TCM and PCM NOTE: Perform the malfunction diagnosis according to the troubleshooting procedure for the multiplex communication system. (See MALFUNCTION DIAGNOSIS FLOW [CONTROLLER AREA NETWORK (CAN)] .) TCM detects DTCs. (See DTC TABLE [TCM] .) TCM malfunction (Refer to applicable CONTROL VALVE BODY REMOVAL/INSTALLATION [GW6AX-EL] in the service information.) PCM malfunction (Refer to applicable PCM REMOVAL/INSTALLATION (VIN Y) in the service information.)
Repeatability verification procedure	Clear the DTC recorded in the memory. (see CLEARING DTC .) Start the engine. Perform the DTC inspection for the PCM. (See DTC INSPECTION .)
System wiring diagram	Not applicable