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Home >> Subaru >> 2021 >> Forester Base >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transaxle System (Diagnostics) >> Diagnostic Procedure With Diagnostic Trouble Code (DTC) >> DTC P0890: TCM Power Relay Sense Circuit Low >> General Description >> Diagnostic Method

Diagnostic Method

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
Measured TCM input voltage which is supplied from 12 V battery system through the TCM Power Relay Less than 2 V

Time needed for diagnosis:  0.5 s

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

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