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Home >> Subaru >> 2006 >> B9 Tribeca Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Diagnostic Trouble Code (DTC) Detecting Criteria (H6DO) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0506 Idle Control System Rpm Lower Than Expected >> Diagnostic Method
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Diagnostic Method

Abnormality Judgment 

Judge as NG when the continuous time of completing the malfunction criterion below is 10 seconds x 3 times.

Judgment Value 

JUDGMENT VALUE - ABNORMALITY JUDGMENT

Malfunction Criteria Threshold Value
Actual - target engine RPM <-100 rpm
Feedback value for ISC Max.

Time Needed for Diagnosis:  10 seconds x 3 times

Malfunction Indicator Light Illumination:  Illuminates when malfunctions occur in 2 continuous driving cycles.

Normality Judgment 

Judge as OK and clear NG when the continuous time of completing the malfunction criterion below becomes more than the time needed for diagnosis (10 seconds).

Judgment Value 

JUDGMENT VALUE - NORMALITY JUDGMENT

Malfunction Criteria Threshold Value
Actual - target engine RPM ≥ -100 rpm