DTC U2131-00: Communication Error With Electrical Supply Unit (ESU) (VCM): Outline

DTC U2131:00 (VCM) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Communication error with electrical supply unit (ESU)
Detection condition	The vehicle control module (VCM) cannot receive CAN signal from electrical supply unit (ESU) for 10 s.
Fail-safe	(See DTC TABLE (VCM (US)) .)
Possible cause	Malfunction in CAN communication line between vehicle control module (VCM) and electrical supply unit (ESU) Electrical supply unit (ESU) malfunction Vehicle control module (VCM) malfunction (built into body control module (BCM)) Body control module (BCM) malfunction
System wiring diagram	Not applicable