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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 U0401 Invalid Data Received From ECM/Pcm "A" >> Diagnostic Method (Turbo Model)

Diagnostic Method (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 Did not change

Time needed for diagnosis:  2 seconds

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

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