DTC U0156:00 [DASH-ELECTRICAL SUPPLY UNIT]

id0702k8712300

Outline

System malfunction location

Communication error with connectivity master unit (CMU)

Detection condition

• The dash-electrical supply unit cannot receive a 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 dash-electrical supply unit

System wiring diagram

Not applicable

Connector diagram

Not applicable

System malfunction location	Communication error with connectivity master unit (CMU)
Detection condition	• The dash-electrical supply unit cannot receive a 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 dash-electrical supply 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 [L.H.D. (E)].) (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [R.H.D.].)