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Home >> Subaru >> 2013 >> Legacy Premium, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 42 (Diagnostic Trouble Code (DTC) Detecting Criteria (H4DO)) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P2009 Intake Manifold Runner Control Circuit Low (Bank 1) >> Diagnostic Method

Diagnostic Method

WARNING: This page is about a different car, the 2013 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

At the main IC, check the sent signal at each timing which occurs just before the tumble generator valve output is set to ON → OFF, and judge open NG when the open NG signal is sent 96 ms x 10 time(s) in a row.

JUDGMENT VALUE

Malfunction Criteria Threshold Value
Overcurrent NG signal input Low

Time Needed for Diagnosis:  96 ms x 10 time(s)

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

Judge as OK and clear the NG when the OK signal is sent.

JUDGMENT VALUE

Malfunction Criteria Threshold Value
Overcurrent NG signal input High

Time Needed for Diagnosis:  Less than 1 second