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Home >> Subaru >> 2011 >> Legacy Premium, Automatic CVT >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Diagnostics (H4DOTC)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P2012 Intake Manifold Runner Control Circuit Low (Bank 2) >> Wiring Diagram

DTC P2012 Intake Manifold Runner Control Circuit Low (Bank 2): Wiring Diagram

WARNING: This page is about a different variant/trim than selected.
Fig 1: Intake Manifold Runner Control Circuit Diagram (Low) (Bank 2)
G06647832Courtesy of SUBARU OF AMERICA, INC.
Step Check Yes No
1 CHECK HARNESS BETWEEN ECM AND TUMBLE GENERATOR VALVE ASSEMBLY LH CONNECTOR. 
  1. Turn the ignition switch to OFF.
  2. Disconnect the connectors from ECM.
  3. Measure the voltage between ECM and chassis ground.

    Connector & terminal 

    (B134) No. 23 (+) - Chassis ground (-): 

    (B134) No. 24 (+) - Chassis ground (-): 

Is the voltage 5 V or more? Repair the short circuit to power in harness between ECM and tumble generator valve assembly LH connector. Replace the tumble generator valve assembly LH. Refer to FU(H4DOTC)-47, Tumble Generator Valve Assembly.