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Home >> Subaru >> 2019 >> Outback 2.5i >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System (2.5L) (Diagnostics) (2 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0604: Internal Control Module Random Access Memory (Ram) Error >> Diagnostic Method

Diagnostic Method

Judge as NG when the following conditions are established.

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value
Written value to RAM not equal to Read out value

time needed for diagnosis:  32 ms x16time(s)

Malfunction Indicator Light Illumination:  Illuminates as soon as a malfunction occurs.

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