On-Vehicle Inspection [09/2022 - ]: Procedure

WARNING:

To prevent injury due to contact with an operating cooling fan, keep your hands and clothing away from the cooling fans when working in the engine compartment with the engine running or the engine switch on (IG).

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT: 

Perform "Inspection After Repair" after repairing vacuum leaks in the intake system.

Refer to INITIALIZATION [09/2022 - ]

1. Check that there are no vacuum leaks at the points shown in the illustration.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Perform "Inspection After Repair" after repairing vacuum leaks in the intake system.

   Refer to INITIALIZATION [09/2022 - ]

1. Disconnect the vacuum hose from the intake air control valve actuator.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Confirm that the intake air control valve opens smoothly under vacuum and closes smoothly when the vacuum is released.

   If the intake air control valve does not close or open smoothly, replace the air cleaner assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Vacuum released
   *b	Vacuum applied
   *c	Intake Air Control Valve Actuator
   *d	Intake Air Control Valve

3. Connect the vacuum hose to the intake air control valve actuator.

1. Disconnect the vacuum switching valve assembly (for AICV) connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Disconnect the 2 vacuum hoses from the vacuum switching valve assembly (for AICV).
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   1 - 2	20°C (68°F)	37 to 44 Ω
   C137-1 - Body ground	Always	10 kΩ or higher
   C137-2 - Body ground	Always	10 kΩ or higher

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component without harness connected (Vacuum Switching Valve Assembly (for AICV))
   *b	Body Ground

   If the result is not as specified, replace the air cleaner assembly.

4. Check the operation of the vacuum switching valve assembly (for AICV).
   1. When vacuum is applied to the port (E), check that air is sucked into the filter.

      If air is not sucked into the filter, replace the air cleaner assembly.

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      *a	Filter
      *b	Port (E)
      *c	Air

   2. Apply battery voltage across the terminals. When vacuum is applied to the port (F), check that air is sucked into the port (E).

      If air is not sucked into the port (F), replace the air cleaner assembly.

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      *a	Port (E)
      *b	Port (F)
      *c	Air