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Home >> Subaru >> 2013 >> Legacy Premium, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 50 (Diagnostic Trouble Code (DTC) Detecting Criteria (H4DOTC)) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P2012 Intake Manifold Runner Control Circuit Low (Bank 2) >> 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 immediately after the tumble generator valve output is set to OFF → ON, and judge overcurrent NG when the overcurrent 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