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Home >> Subaru >> 2007 >> Outback XT Limited, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Diagnostic Trouble Code (DTC) Detecting Criteria (H4DOTC) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0519 Idle Air Control System Performance >> Diagnostic Method
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Diagnostic Method

Judge as NG when the continuous time of meeting the all malfunction criteria below becomes the time needed for diagnosis (2 seconds) or more.

Judgment Value 

JUDGMENT VALUE

Malfunction Criteria Threshold Value
Engine speed - Targeted engine speed ≥ 1500 rpm
Feedback value for ISC ≤ 0
Engine speed change every 180 degree engine rev. ≥ -5 rpm

Time Needed for Diagnosis:  2 seconds

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

Judge as OK and clear the NG when the continuous time of meeting all the malfunction criteria below becomes the time needed for diagnosis (5 seconds) or more.

Judgment Value 

JUDGMENT VALUE

Malfunction Criteria Threshold Value
Engine speed - Targeted engine speed < 200 rpm