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DTC U0155:00 [DSC HU/CM]

id040262011000

Outline

System malfunction location

Communication error with instrument cluster

Detection condition

•  The DSC HU/CM cannot receive CAN signal from the instrument cluster.

Fail-safe

Refer to “DTC Table” and “Fail-safe Function Malfunction Contents Table”.(See DTC TABLE [DSC HU/CM (E)].)

Possible cause

•  Malfunction in CAN communication line (CAN BUS No.3) between instrument cluster and body control module (BCM)

•  Malfunction in CAN communication line (CAN BUS No.1) between body control module (BCM) and DSC HU/CM

System wiring diagram

Not applicable

Connector diagram

Not applicable

System malfunction location	Communication error with instrument cluster
Detection condition	• The DSC HU/CM cannot receive CAN signal from the instrument cluster.
Fail-safe	Refer to “DTC Table” and “Fail-safe Function Malfunction Contents Table”.(See DTC TABLE [DSC HU/CM (E)].)
Possible cause	• Malfunction in CAN communication line (CAN BUS No.3) between instrument cluster and body control module (BCM) • Malfunction in CAN communication line (CAN BUS No.1) between body control module (BCM) and DSC HU/CM
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)].)