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DTC P2022 Intake Manifold Runner Position Sensor / Switch Circuit High (Bank 2): Wiring Diagram

WARNING: This page is about a different car, the 2012 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Intake Manifold Runner Position Sensor / Switch Circuit High - Wiring Diagram (Bank 2)
G07665337Courtesy of SUBARU OF AMERICA, INC.
DIAGNOSIS PROCEDURE

Step Check Yes No
1 CHECK CURRENT DATA. 
  1. Start the engine.
  2. Read the data of tumble generator valve position sensor signal (LH) using Subaru Select Monitor or general scan tool.
    NOTE:
    • Subaru Select Monitor

      For detailed operation procedures, refer to "READ CURRENT DATA FOR ENGINE". < Refer to SUBARU SELECT MONITOR . >

    • General scan tool

      For detailed operation procedures, refer to the general scan tool operation manual.

 Is the voltage 5 V or more? Go to step 2  . Even if DTC is detected, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.
NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.
2 CHECK HARNESS BETWEEN ECM AND TUMBLE GENERATOR VALVE ASSEMBLY LH CONNECTOR. 
  1. Turn the ignition switch to OFF.
  2. Disconnect the connector from tumble generator valve assembly LH.
  3. Start the engine.
  4. Read the data of tumble generator valve position sensor signal (LH) using Subaru Select Monitor or general scan tool.
    NOTE:
    • Subaru Select Monitor

      For detailed operation procedures, refer to "READ CURRENT DATA FOR ENGINE". < Refer to SUBARU SELECT MONITOR . >

    • General scan tool

      For detailed operation procedures, refer to the general scan tool operation manual.

 Is the voltage 5 V or more? Repair the short circuit to power in harness between ECM and tumble generator valve assembly LH connector. Go to step 3  .
3 CHECK HARNESS BETWEEN ECM AND TUMBLE GENERATOR VALVE ASSEMBLY LH CONNECTOR. 
  1. Turn the ignition switch to OFF.
  2. Measure the resistance of harness between tumble generator valve assembly LH connector and engine ground.

    Connector & terminal 

    (E51) No. 2 - Engine ground: 

 Is the resistance less than 5 Ω? Go to step 4  . Repair the harness and connector.
NOTE: In this case, repair the following item:
  • Open circuit in harness between ECM and tumble generator valve assembly LH connector
  • Poor contact of ECM connector
  • Poor contact of coupling connector
4 CHECK FOR POOR CONTACT. 
Check for poor contact of tumble generator valve assembly LH connector.		 Is there poor contact of the tumble generator valve assembly LH connector? Repair the poor contact of tumble generator valve assembly LH connector. Replace the tumble generator valve assembly LH. < Refer to TUMBLE GENERATOR VALVE ASSEMBLY . >
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