DTC U2133-00: Communication Error With Climate Control Unit

U2133:00 (DASH_ESU) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Communication error with climate control unit
Detection condition	The dash-electrical supply unit cannot receive CAN signal from the climate control unit.
Fail-safe	The value of the data which is not received from the climate control unit is fixed at the specified value.
Possible cause	Malfunction in CAN communication line between climate control unit and dash-electrical supply unit 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