Home

Mazdamanuals.com

DTC U0101:00 [PCM (SKYACTIV-D)]

id0102t5909900

Outline

System malfunction location

CAN communication: communication error to TCM (CAN Bus No.1)

Detection condition

•  Communication error between the PCM and TCM continues for 5 s or more.

Fail-safe

•  Controls the turbine rotation signal at 0.

•  Inhibits the AT torque reduction request.

Possible cause

Note

•  During malfunction diagnosis, first verify the malfunction detection of DTC U0074:00 or U0115:00 for the TCM.

•  CAN communication line malfunction between PCM and TCM

•  TCM malfunction

•  PCM malfunction

System wiring diagram

•  Not applicable

Connector diagram

•  Not applicable

System malfunction location	CAN communication: communication error to TCM (CAN Bus No.1)
Detection condition	• Communication error between the PCM and TCM continues for 5 s or more.
Fail-safe	• Controls the turbine rotation signal at 0. • Inhibits the AT torque reduction request.
Possible cause	Note • During malfunction diagnosis, first verify the malfunction detection of DTC U0074:00 or U0115:00 for the TCM. • CAN communication line malfunction between PCM and TCM • TCM 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 [(E)].)