Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc p2012 tgv control circuit low bank 2

Subaru Legacy BN/BS (2015-2019) Service Manual / Engine (diagnostics)(h4do) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc p2012 tgv control circuit low bank 2

DTC DETECTING CONDITION:

Immediately at fault recognition

CAUTION:

After servicing or replacing faulty parts, perform Clear Memory Mode Clear Memory Mode > OPERATION, and Inspection Mode Inspection Mode > PROCEDURE.

WIRING DIAGRAM:

• Engine Electrical System ENGINE TYPE FB (WITHOUT PUSH BUTTON START) Engine Electrical System > WIRING DIAGRAM

• Engine Electrical System ENGINE TYPE FB (WITH PUSH BUTTON START) Engine Electrical System > WIRING DIAGRAM

STEP	CHECK	YES	NO
1.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 chassis ground. Connector & terminal (E158) No. 26 (+) — Chassis ground (−): (E158) No. 39 (+) — Chassis ground (−):	Is the voltage 5 V or more-	Repair the short circuit to power in harness between ECM connector and tumble generator valve actuator LH connector.	Replace the tumble generator valve actuator LH. Tumble Generator Valve Actuator

1. OUTLINE OF DIAGNOSIS

NOTE:

For the detection standard, refer to DTC P2009. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P2009 TGV CONTROL CIRCUIT LOW BANK 1

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DTC DETECTING CONDITION:Immediately at fault recognitionCAUTION:After servicing or replacing faulty parts, perform Clear Memory Mode Clear Memory Mode > OPERATION, and Inspection Mode Inspection Mod ...

Other materials:

Inspection
1. Check that the engine oil cooler, engine oil cooler pipe, and oil cooler connector do not have deformation, cracks or damage.2. Make sure the engine oil cooler hoses are not cracked, damaged or loose.3. Blow with compressed air to make sure the coolant passages are not clogged.4. Check that the o ...