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 Ref. to ENGINE (DIAGNOSTICS) (H4DOTC)>Clear Memory Mode . and Inspection Mode Ref. to ENGINE (DIAGNOSTICS) (H4DOTC)>Inspection Mode .
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 .

Fig 1: TGV Control Circuit Low Bank 2 - 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 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 and tumble generator valve actuator LH connector.
- No : Replace the tumble generator valve actuator LH. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>Tumble Generator Valve Actuator .