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DTC P2009: TGV Control Circuit Low Bank 1: Notes

DTC detecting condition:

Immediately at fault recognition

CAUTION: After servicing or replacing faulty parts, perform Clear Memory Mode Ref. to ENGINE (DIAGNOSTICS) (STI)>Clear Memory Mode>OPERATION , and inspection mode Ref. to ENGINE (DIAGNOSTICS) (STI)>Inspection Mode>PROCEDURE .

Wiring diagram:

Engine Electrical System Ref. to WIRING SYSTEM>Engine Electrical System>WIRING DIAGRAM .

G12456863

Courtesy of SUBARU OF AMERICA, INC.

CHECK HARNESS BETWEEN ECM AND TUMBLE GENERATOR VALVE ASSEMBLY RH CONNECTOR .
1. Turn the ignition switch to OFF.
2. Disconnect the connector from ECM.
3. Measure the voltage between ECM connector and chassis ground.
  Connector & terminal
  
  (B134) No. 25 (+) - Chassis ground (-):
  
  (B134) No. 26 (+) - Chassis ground (-):
Is the voltage 5 V or more?

Yes: Repair the short circuit to power in harness between ECM connector and tumble generator valve assembly RH connector.

No: Replace the tumble generator valve assembly RH. Ref. to FUEL INJECTION (FUEL SYSTEMS) (STI)>Tumble Generator Valve Assembly .