On-Vehicle Inspection

INSPECT INTAKE AIR CONTROL VALVE OPERATION
1. Start the engine.
2. While the engine is idling, check that the actuator rod moves.
  
  Fig 1: Checking Actuator Rod Moves
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Disconnect the VSV connector, and check that the actuator rod is returned.
  If the operation is not as specified, inspect the intake air control valve, VSV and ECM.
  
  Fig 2: Disconnecting VSV Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002