DTC U0073-00: Can Communication System: Can System Communication Error (Can Bus No. 2)

U0073: 00 (SGC2/DMCM (WITH MAZDA M HYBRID BOOST)) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	CAN communication system: CAN system communication error (CAN bus No. 2)
Detection condition	The drive motor control module detects a CAN bus communication line (CAN bus No. 2) malfunction.
Fail-safe	Not applicable
Possible cause	CAN bus communication line (CAN bus No. 2) error NOTE: Perform the malfunction diagnosis according to the troubleshooting procedure for the multiplex communication system. (See MALFUNCTION DIAGNOSIS FLOW [CONTROLLER AREA NETWORK (CAN)] .)
Repeatability verification procedure	Not applicable
System wiring diagram	Not applicable