On-Vehicle Inspection

1. Using a 3-way connector, connect a vacuum gauge to the actuator hose.
2. Connect the hand-held tester to the DLC3.
3. Start the engine.
4. On the hand-held tester, enter the ACTIVE TEST mode.
   Fig 1: Checking Intake Air Control System

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard: 

   INTAKE AIR CONTROL SYSTEM - SWITCH CONDITION TABLE
   
   

   Switch Condition	Vacuum
   VSV ON	Approx. 27.6 kPa (200 mmHg, 7.9 in.Hg)
   VSV OFF	0 kPa (0 mmHg, 0 in.Hg)

5. Move the shift lever to the P position.
6. While operating the accelerator pedal, check open and closed status of the IAC valve No. 1 (IMZ-FE only) and No. 2.

HINT:

Values indicated in the illustration are for reference only. The throttle valve open position varies by engine speed.

Fig 2: Identifying Throttle Valve Open Position Graph

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002