Dtc P2009 Intake Manifold Runner Control Circuit Low (Bank 1)

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

PERFORM ACTIVE TEST USING GTS (ACTIVATE THE VSV FOR SWIRL CONTROL VALVE)

INSPECT VACUUM SWITCHING VALVE ASSEMBLY (FOR SWIRL CONTROL VALVE) (RESISTANCE)

INSPECT VACUUM SWITCHING VALVE ASSEMBLY (FOR SWIRL CONTROL VALVE) (POWER SOURCE VOLTAGE)

CHECK HARNESS AND CONNECTOR (VACUUM SWITCHING VALVE ASSEMBLY (FOR SWIRL CONTROL VALVE) - ECM)

REPLACE ECM

CHECK HARNESS AND CONNECTOR (VACUUM SWITCHING VALVE ASSEMBLY (FOR SWIRL CONTROL VALVE) - NO. 1 INTEGRATION RELAY)

INSPECT NO. 1 INTEGRATION RELAY (EFI MAIN 2)

INSPECT ECM POWER SOURCE CIRCUIT

REPLACE VACUUM SWITCHING VALVE (FOR SWIRL CONTROL VALVE)

REPLACE NO. 1 INTEGRATION RELAY

REPAIR OR REPLACE HARNESS OR CONNECTOR

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

1. Inspect the fuses of circuits related to this system before performing the following inspection procedure.
   
2. After replacing the ECM, the new ECM needs registration (LandCruiser RM0000012XK0AVX.html) and initialization (LandCruiser RM000000TIN08IX.html).
   

HINT:

Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.

1. Connect the GTS to the DLC3.
   

2. Disconnect the vacuum hoses from the vacuum switching valve assembly (for swirl control valve).
   

3. Turn the engine switch on (IG) and turn the GTS on.
   

4. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the VSV for Swirl Control Valve.
   

5. Check the vacuum switching valve (for swirl control valve) operation when it is operated using the GTS.
   

   OK:

   GTS Operation	Specified Condition
   VSV ON	Air from port E flows out through port F
   VSV OFF	Air from port E flows out through air filter

6. Reconnect the vacuum hoses.
   

1. Inspect the vacuum switching valve assembly (for swirl control valve) (LandCruiser RM000005UI3000X_01_0002.html).
   

1. Disconnect the vacuum switching valve assembly (for swirl control valve) connector.
   

2. Measure the voltage according to the value(s) in the table below.
   

   Standard Voltage:

   Tester Connection	Switch Condition	Specified Condition
   C79-2 - Body ground	Engine switch on (IG)	11 to 14 V

   Text in Illustration

   *a	Front view of wire harness connector (to Vacuum Switching Valve Assembly (for Swirl Control Valve))

3. Reconnect the vacuum switching valve assembly (for swirl control valve) connector.
   

1. Disconnect the vacuum switching valve assembly (for swirl control valve) connector.
   

2. Disconnect the ECM connector.
   

3. Measure the resistance of the wire harness side connectors.
   
   

   Standard Resistance:

   
   

   Tester Connection	Condition	Specified Condition
   C79-1 - C149-9 (SCV)	Always	Below 1 Ω
   C79-1 or C149-9 (SCV) - Body ground and other terminal	Always	10 kΩ or higher

4. Reconnect the vacuum switching valve assembly (for swirl control valve) connector.
   

5. Reconnect the ECM connector.
   

1. Replace the ECM (LandCruiser RM0000013Z002DX.html).
   

1. Remove the No. 1 integration relay from the engine room relay block.
   

2. Disconnect the vacuum switching valve assembly (for swirl control valve) connector.
   

3. Measure the resistance of the wire harness side connectors.
   
   

   Standard Resistance:

   
   

   Tester Connection	Condition	Specified Condition
   1K-22 - C79-2	Always	Below 1 Ω
   1K-22 or C79-2 - Body ground and other terminals	Always	10 kΩ or higher

4. Reinstall the No. 1 integration relay.
   

5. Reconnect the vacuum switching valve assembly (for swirl control valve) connector.
   

1. Inspect the No. 1 Integration relay (EFI MAIN2) (LandCruiser RM00000469101AX_01_0006.html).
   

1. Check the ECM power source circuit (LandCruiser RM000000TI20ANX.html).
   

1. Replace the vacuum switching valve (for swirl control valve) (LandCruiser RM000005UI5000X.html).
   

1. Repair or replace harness or connector.
   

1. Connect the GTS to the DLC3.
   

2. Clear the DTCs (LandCruiser RM000000PDK1ENX.html).
   

3. Start the engine and wait for 2 seconds or more.
   

4. Race the engine for 1 second.
   

5. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
   

6. Confirm that the DTC is not output again.