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DTC U2121:49 [BODY CONTROL MODULE (BCM)]

id0902r7097800

Outline

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

• Malfunction in CAN communication line between vehicle control module (VCM) and body control module (BCM)

System wiring diagram

Not applicable

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	• Malfunction in CAN communication line between vehicle control module (VCM) and body control module (BCM)
System wiring diagram	Not applicable

Diagnostic Procedure

• Perform an inspection in accordance with the multiplex communication system diagnostic procedure. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].)