DTC U0156:00 [PCM (e-SKYACTIV)]

id300202038900

Outline

System malfunction location

CAN communication: communication error to connectivity master unit (CMU)

Detection condition

•  Communication error between the PCM and connectivity master unit (CMU).

Fail-safe

•  Refer to "DTC Table" and "Fail-safe Function Malfunction Contents Table". (See DTC TABLE [PCM (e-SKYACTIV)].)

Possible cause

•  CAN communication line malfunction between PCM and connectivity master unit (CMU)

•  Connectivity master unit (CMU) malfunction

•  PCM malfunction

System wiring diagram

•  Not applicable

Connector diagram

•  Not applicable

System malfunction location	CAN communication: communication error to connectivity master unit (CMU)
Detection condition	• Communication error between the PCM and connectivity master unit (CMU).
Fail-safe	• Refer to "DTC Table" and "Fail-safe Function Malfunction Contents Table". (See DTC TABLE [PCM (e-SKYACTIV)].)
Possible cause	• CAN communication line malfunction between PCM and connectivity master unit (CMU) • Connectivity master unit (CMU) malfunction • PCM malfunction
System wiring diagram	• Not applicable
Connector diagram	• Not applicable

Diagnostic Procedure

• Inspect according to the diagnostic procedure in ON-BOARD DIAGNOSTIC [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.].)