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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. Refer to ENGINE (DIAGNOSTICS) (W/O STI)>CLEAR MEMORY MODE>OPERATION . and inspection mode. Refer to ENGINE (DIAGNOSTICS) (W/O STI)>INSPECTION MODE>PROCEDURE .
Use the check board when measuring the ECM terminal voltage and resistance.

Wiring diagram:

Engine Electrical System. Refer to WIRING SYSTEM>ENGINE ELECTRICAL SYSTEM>WIRING DIAGRAM .

G09480973

Courtesy of SUBARU OF AMERICA, INC.

CHECK HARNESS BETWEEN ECM AND TUMBLE GENERATOR VALVE ACTUATOR RH CONNECTOR.
1. Turn the ignition switch to OFF.
2. Disconnect the connector from ECM.
3. Measure the voltage between ECM connector and engine ground.
  Connector & terminal
  
  (E159) No. 14 (+) - Engine ground (-):
  
  (E159) No. 30 (+) - Engine ground (-):
Is the voltage 5 V or more?

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

No: Replace the tumble generator valve actuator RH.. Refer to FUEL INJECTION (FUEL SYSTEMS) (W/O STI)>TUMBLE GENERATOR VALVE ACTUATOR .

NOTE: The tumble generator valve actuator cannot be disassembled.