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Home >> Subaru >> 2017 >> Forester 2.0XT Touring >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Transaxle (Diagnostics) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC U0100 Lost Communication With ECM/Pcm "A" >> Diagnostic Method (Non-Turbo Model)

Diagnostic Method (Non-Turbo Model)

If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value
CAN data from ECM Lost

Time needed for diagnosis:  0.5 s

Malfunction indicator light illumination:  Illuminates as soon as a malfunction occurs.