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DTC B2009:92 [DASH-ELECTRICAL SUPPLY UNIT]

id0702k8008200

Outline

System malfunction location

Communication error with body control module (BCM), dash-electrical supply unit or PCM

Detection condition

•  The dash-electrical supply unit detects any of the following conditions.

―  The climate control unit cannot receive CAN signal from the body control module (BCM).

―  The climate control unit cannot receive CAN signal from the dash-electrical supply unit.

―  The climate control unit cannot receive CAN signal from the PCM.

Fail-safe

•  Not applicable

Possible cause

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

•  Malfunction in CAN communication line between dash-electrical supply unit and climate control unit

•  Malfunction in CAN communication line between PCM and climate control unit

System wiring diagram

Not applicable

Connector diagram

Not applicable

System malfunction location	Communication error with body control module (BCM), dash-electrical supply unit or PCM
Detection condition	• The dash-electrical supply unit detects any of the following conditions. ― The climate control unit cannot receive CAN signal from the body control module (BCM). ― The climate control unit cannot receive CAN signal from the dash-electrical supply unit. ― The climate control unit cannot receive CAN signal from the PCM.
Fail-safe	• Not applicable
Possible cause	• Malfunction in CAN communication line between body control module (BCM) and climate control unit • Malfunction in CAN communication line between dash-electrical supply unit and climate control unit • Malfunction in CAN communication line between PCM and climate control unit
System wiring diagram	Not applicable
Connector diagram	Not applicable

Diagnostic Procedure

• Perform the malfunction diagnosis according to the troubleshooting procedure for the multiplex communication system.(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].)