DTC U0073-00: Can Communication System: Bus Off Of Can-Bus No. 1

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U0073:00 (PCM - VIN Y) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	CAN communication system: Bus off of CAN-BUS No. 1
Detection condition	When there is an error in the CAN-BUS communication line.
Fail-safe	Not applicable
Possible cause	Malfunction in CAN-BUS No. 1 communication line. NOTE: Perform the malfunction diagnosis according to the troubleshooting procedure for the multiplex communication system. (See MALFUNCTION DIAGNOSIS FLOW [CONTROLLER AREA NETWORK (CAN)] .) 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 .) Perform the KOEO or KOER self test. (See DTC INSPECTION .)
System wiring diagram	Not applicable