DTC P2012: TGV Control Circuit Low Bank 2: Notes

DTC detecting condition:

Immediately at fault recognition

CAUTION:

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

Use the check board when measuring the ECM terminal voltage and resistance.

Wiring diagram:

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

G09480973

Courtesy of SUBARU OF AMERICA, INC.

CHECK HARNESS BETWEEN ECM AND TUMBLE GENERATOR VALVE ACTUATOR LH 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. 6 (+) - Engine ground (-):
  
  (E159) No. 22 (+) - 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 LH connector.

No: Replace the tumble generator valve actuator LH. Ref. to FUEL INJECTION (FUEL SYSTEMS) (EXCEPT FOR STI)>Tumble Generator Valve Actuator .