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DTC U0156:00 [BODY CONTROL MODULE (BCM) (E)]

id0902r70965s3

Except Chinese Specs.

Outline

System malfunction location

Communication error with connectivity master unit (CMU)

Detection condition

• The body control module (BCM) cannot receive CAN signal from the connectivity master unit (CMU).

Fail-safe

Not applicable

Possible cause

• Malfunction in CAN communication line between connectivity master unit (CMU) and body control module (BCM)

System wiring diagram

Not applicable

System malfunction location	Communication error with connectivity master unit (CMU)
Detection condition	• The body control module (BCM) cannot receive CAN signal from the connectivity master unit (CMU).
Fail-safe	Not applicable
Possible cause	• Malfunction in CAN communication line between connectivity master unit (CMU) 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)].)

Chinese Specs.

Outline

System malfunction location

Communication error with audio control unit (ACU)

Detection condition

• The body control module (BCM) cannot receive CAN signal from the audio control unit (ACU).

Fail-safe

Not applicable

Possible cause

• Malfunction in CAN communication line between audio control unit (ACU) and body control module (BCM)

System wiring diagram

Not applicable

System malfunction location	Communication error with audio control unit (ACU)
Detection condition	• The body control module (BCM) cannot receive CAN signal from the audio control unit (ACU).
Fail-safe	Not applicable
Possible cause	• Malfunction in CAN communication line between audio control unit (ACU) and body control module (BCM)
System wiring diagram	Not applicable

Diagnostic Procedure

• Perform an inspection in accordance with the multiplex communication system diagnostic procedure.