Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc u0100 lost communication with ecm/pcm "a"

Subaru Legacy BN/BS (2015-2019) Service Manual / Power assisted system (power steering) (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc u0100 lost communication with ecm/pcm "a"

NOTE:

Refer to “LAN SYSTEM (DIAGNOSTICS)” for diagnostic procedure. Basic Diagnostic Procedure

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Communication for initializing impossible
DIAGNOSIS:Subaru Select Monitor communication line is open or shorted.TROUBLE SYMPTOM:Not communicable with Subaru Select Monitor.WIRING DIAGRAM:CAN communication system CAN Communication System > WIRING DIAGRAMSTEPCHECKYESNO1.CHECK SUBARU SELECT MONITOR.1) Connect the Subaru Select Monitor to anot ...