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Home >> Subaru >> 2021 >> Outback Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (2.5L) (Diagnostics) (3 Of 4) >> Diagnostic Procedure With Diagnostic Trouble Code (DTC) >> DTC P1604: STARTABILITY Malfunction >> 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 - DIAGNOSIS 1

Malfunction Criteria Threshold Value
Engine speed Less than 500 rpm

Judge as NG when the following conditions are established.

JUDGMENT VALUE - DIAGNOSIS 2

Malfunction Criteria Threshold Value
Engine speed Less than 300 rpm

Time needed for diagnosis: 

Diagnosis 1: 2 - 26 s

Diagnosis 2: Less than 1 s

Malfunction indicator light illumination:  Does not illuminate.