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Home >> Toyota >> 2011 >> Highlander Hybrid Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 63 (Engine Control System (2GR-FE) (Diagnostic Codes (P1604 - P2610) & Circuit Tests))) >> SFI System >> VC Output Circuit >> Procedure

VC Output Circuit: Procedure

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  1. CHECK MIL 
    1. Check that the Malfunction Indicator Lamp (MIL) lights up when turning the ignition switch on (IG).

      OK

      MIL lights up.

    NG → See step   2 

    OK → See step   12 

  2. CHECK CONNECTION BETWEEN TECHSTREAM AND ECM 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch on (IG) and turn the tester on.
    3. Check the communication between the tester and ECM.

      Result

      Result Proceed to
      Communication is possible A
      Communication is not possible B

    A → See step   12 

    B: Go to next step 

  3. CHECK THROTTLE BODY (CHECK MIL ILLUMINATED) 
    1. Disconnect the throttle body connector.
    2. Turn the ignition switch on (IG).
    3. Check the MIL.

      Result

      Result Proceed to
      MIL illuminates A
      MIL does not illuminate B
    4. Reconnect the throttle body connector.

    A → See step   13 

    B: Go to next step 

  4. CHECK ACCELERATOR PEDAL ROD (CHECK MIL ILLUMINATED) 
    1. Disconnect the accelerator pedal position sensor connector.
    2. Turn the ignition switch on (IG).
    3. Check the MIL.

      Result

      Result Proceed to
      MIL illuminates A
      MIL does not illuminate B
    4. Reconnect the accelerator pedal position sensor connector.

    A → See step   14 

    B: Go to next step 

  5. CHECK VVT SENSOR FOR INTAKE CAMSHAFT BANK 1 (CHECK MIL ILLUMINATED) 
    1. Disconnect the VVT sensor for intake camshaft bank 1 connector.
    2. Turn the ignition switch on (IG).
    3. Check the MIL.

      Result

      Result Proceed to
      MIL illuminates A
      MIL does not illuminate B
    4. Reconnect the VVT sensor for intake camshaft bank 1 connector.

    A → See step   15 

    B: Go to next step 

  6. CHECK VVT SENSOR FOR EXHAUST CAMSHAFT BANK 1 (CHECK MIL ILLUMINATED) 
    1. Disconnect the VVT sensor for exhaust camshaft bank 1 connector.
    2. Turn the ignition switch on (IG).
    3. Check the MIL.

      Result

      Result Proceed to
      MIL illuminates A
      MIL does not illuminate B
    4. Reconnect the VVT sensor for exhaust camshaft bank 1 connector.

    A → See step   16 

    B: Go to next step 

  7. CHECK VVT SENSOR FOR INTAKE CAMSHAFT BANK 2 (CHECK MIL ILLUMINATED) 
    1. Disconnect the VVT sensor for intake camshaft bank 2 connector.
    2. Turn the ignition switch on (IG).
    3. Check the MIL.

      Result

      Result Proceed to
      MIL illuminates A
      MIL does not illuminate B
    4. Reconnect the VVT sensor for intake camshaft bank 2 connector.

    A → See step   17 

    B: Go to next step 

  8. CHECK VVT SENSOR FOR EXHAUST CAMSHAFT BANK 2 (CHECK MIL ILLUMINATED) 
    1. Disconnect the VVT sensor for exhaust camshaft bank 2 connector.
    2. Turn the ignition switch on (IG).
    3. Check the MIL.

      Result

      Result Proceed to
      MIL illuminates A
      MIL does not illuminate B
    4. Reconnect the VVT sensor for exhaust camshaft bank 2 connector.

    A → See step   18 

    B: Go to next step 

  9. CHECK CHARCOAL CANISTER ASSEMBLY (CHECK MIL ILLUMINATED) 
    1. Disconnect the canister pump module connector.
    2. Turn the ignition switch on (IG).
    3. Check the MIL.

      Result

      Result Proceed to
      MIL illuminates A
      MIL does not illuminate B
    4. Reconnect the canister pump module connector.

    A → See step   19 

    B: Go to next step 

  10. CHECK HARNESS AND CONNECTOR 
    1. Disconnect the throttle body connector.
    2. Disconnect the accelerator pedal position sensor connector.
    3. Disconnect the VVT sensor for intake camshaft bank 1 connector.
    4. Disconnect the VVT sensor for exhaust camshaft bank 1 connector.
    5. Disconnect the VVT sensor for intake camshaft bank 2 connector.
    6. Disconnect the VVT sensor for exhaust camshaft bank 2 connector.
    7. Disconnect the canister pump module connector.
    8. Disconnect the ECM connectors.
    9. Measure the resistance according to the value(s) in the table below.

      Standard resistance (Check for short)

      Tester Connections Condition Specified Conditions
      B51-15 (VCV1) - Body ground Always 10 kΩ or higher
      D60-4 (VCPA) - Body ground Always 10 kΩ or higher
      D60-2 (VCP2) - Body ground Always 10 kΩ or higher
      B49-13 (VCTA) - Body ground Always 10 kΩ or higher
    10. Reconnect the ECM connectors.
    11. Reconnect the canister pump module connector.
    12. Reconnect the VVT sensor for exhaust camshaft bank 2 connector.
    13. Reconnect the VVT sensor for intake camshaft bank 2 connector.
    14. Reconnect the VVT sensor for exhaust camshaft bank 1 connector.
    15. Reconnect the VVT sensor for intake camshaft bank 1 connector.
    16. Reconnect the accelerator pedal position sensor connector.
    17. Reconnect the throttle body connector.

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   11 

  11. REPLACE ECM. Refer to  COMPONENTS 
  12. GO TO MIL CIRCUIT. Refer to  MIL Circuit  
  13. REPLACE THROTTLE BODY. Refer to  COMPONENTS 
  14. REPLACE ACCELERATOR PEDAL ROD. Refer to  COMPONENTS 
  15. REPLACE VVT SENSOR FOR INTAKE CAMSHAFT BANK 1. Refer to  COMPONENTS 
  16. REPLACE VVT SENSOR FOR EXHAUST CAMSHAFT BANK 1. Refer to  COMPONENTS 
  17. REPLACE VVT SENSOR FOR INTAKE CAMSHAFT BANK 2. Refer to  COMPONENTS 
  18. REPLACE VVT SENSOR FOR EXHAUST CAMSHAFT BANK 2. Refer to  COMPONENTS 
  19. REPLACE CHARCOAL CANISTER ASSEMBLY. Refer to  COMPONENTS 
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