Toyota RAV4 2000-05

Idle Air Control Valve

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Testing



1AZ-FE VIN H
  1. Remove throttle body.
  2.  
  3. Remove the 3 screws, IAC valve and gasket.
  4.  
  5. Check that the IAC valve is half-opened.
  6.  
  7. Connect the IAC valve connector.
  8.  
  9. Turn the ignition switch ON.
  10.  
  11. Check that the IAC valve operates in sequence, half open, fully close, fully open and then half open, within 0.5 seconds.
  12.  
  13. If the operation is not as specified, replace the IAC valve.
  14.  

To install:

  1. Turn the ignition switch OFF.
  2.  
  3. Disconnect the IAC valve connector.
  4.  
  5. Install a new gasket and the IAC valve with the 3 screws.
  6.  
  7. Reinstall throttle body.
  8.  

3S-FE VIN P
  1. Connect the positive (+) lead from the battery to terminal +B and negative (-) lead to terminal RSC, and check that the valve is closed.
  2.  
  3. Connect the positive (+) lead from the battery to terminal +B and negative (-) lead to terminal RSO, and check that the valve is open.
  4.  
  5. If operation is not as specified, replace the IAC valve.

    Click image to see an enlarged view

    Fig. IAC valve testing-2.0L (3S-FE) VIN P

  6.  

 
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