DTC U2121-49: Communication Error With Vehicle Control Module (VCM)

U2121-49: (BCM) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Communication error with vehicle control module (VCM)
Detection condition	The body control module (BCM) cannot receive CAN signal from the vehicle control module (VCM).
Fail-safe	Not applicable
Possible cause	Body control module (BCM) malfunction (Refer to BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION in service information.)
Repeatability verification procedure	Clear the DTC recorded in the memory. (See CLEARING DTC .)
System wiring diagram	Not applicable