DTC U2133-00: Communication Error With Climate Control Unit

U2133: 00 (VCM) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Communication error with climate control unit
Detection condition	The vehicle control module (VCM) cannot receive CAN signal from climate control unit.
Fail-safe	(See DTC TABLE [VCM] .)
Possible cause	Malfunction in CAN communication line between climate control unit and vehicle control module (VCM) 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