Subaru Legacy BN/BS (2015-2019) Service Manual: General description

Dtc u0101 lost communication with tcm

Detected when CAN data from TCM does not arrive.NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE ...

Preparation tool

1. SPECIAL TOOLILLUSTRATIONTOOL NUMBERDESCRIPTIONREMARKS — (Newly adopted tool)SUBARU SELECT MONITOR 4Used for setting of each function and troubleshooting for electrical system.NOTE:For detailed op ...

Other materials:

Diagnostic procedure for subaru select monitor communication communication for initializing impossible
DIAGNOSIS:Defective harness connectorTROUBLE SYMPTOM:Subaru Select Monitor communication failureWIRING DIAGRAM:• ENGINE TYPE FBCVT control system CVT Control System > WIRING DIAGRAM• ENGINE TYPE EZCVT control system CVT Control System > WIRING DIAGRAMSTEPCHECKYESNO1.CHECK IGNITION SWIT ...