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Home >> Subaru >> 2021 >> Crosstrek Sport >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 25 (Engine Control System (HEV) (Diagnostics) (4 Of 4)) >> Diagnostic Procedure With Diagnostic Trouble Code (DTC) >> DTC U0284: Lost Communication With Active Grille Shutter Module "A" >> General Description >> Diagnostic Method

Diagnostic Method

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Judge as NG when the following conditions are established.

Judgment value 

JUDGMENT VALUE SPECIFICATIONS

Malfunction Criteria Threshold Value
Data from control modules connected to LIN None

Time needed for diagnosis:  3000 ms

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

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