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Home >> Subaru >> 2019 >> Ascent Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (4 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC U0402: Invalid Data Received From TCM >> Diagnostic Method

Diagnostic Method

Judge as NG when the following conditions are established.

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value
Data updated from control module connected to CAN None

Time needed for diagnosis:  2000 ms

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

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