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

Dtc u0100 lost communication with ecm/pcm "a"

DTC DETECTING CONDITION:No data is received from ECM.TROUBLE SYMPTOM:Cooperation control of transmission may not operate properly.STEPCHECKYESNO1.CHECK PERFORMING OF BASIC DIAGNOSTIC PROCEDURE.Was the ...

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 ...

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Operation
1. On «Start» display, select «Diagnosis».2. On «Vehicle selection» display, input the target vehicle information and select «Confirmed».3. On «Main Menu» display, select «Each System».4. On «Select System» display, select «Power Rear Gate» and then select «Enter».5. On «Select Fu ...