DTC U0101-00: Communication Error With TCM/Selector Lever

U0101-00: (CMU) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Communication error with TCM/selector lever
Detection condition	The connectivity master unit (CMU) detects a communication interruption or communication error with the TCM/selector lever.
Fail-safe	Not applicable
Possible cause	Malfunction in CAN communication line between TCM/selector lever and connectivity master unit (CMU) NOTE: Perform the malfunction diagnosis according to the troubleshooting procedure for the multiplex communication system. (See MALFUNCTION DIAGNOSIS FLOW [CONTROLLER AREA NETWORK (CAN)] .) TCM/selector lever malfunction (Refer to CONTROL VALVE BODY REMOVAL/INSTALLATION [EV6A-EL, EV6AX-EL] , or CONTROL VALVE BODY REMOVAL/INSTALLATION [GW6AX-EL] in service information.) (Refer to SELECTOR LEVER COMPONENT REMOVAL/INSTALLATION in service information.) Connectivity master unit (CMU) malfunction (Refer to CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION in service information.)
Repeatability verification procedure	Not applicable
System wiring diagram	Not applicable