On-Vehicle Inspection

WARNING: This page is about a different car, the 2004 Lexus RX 330. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT INTAKE AIR CONTROL SYSTEM
1. Using a 3-way connector, connect vacuum gauge to the actuator hose.
2. Connect the hand-held tester to the DLC 3.
3. Start the engine.
4. Select the active test mode according to the message on the hand-held tester.
  
  Fig 1: Inspecting Intake Air Control System
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Vacuum:
  
  Fig 2: Intake Air Control System Vacuum Specification Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002