On-Vehicle Inspection [12/2013 - ]: Procedure

HINT: 

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

Refer to INITIALIZATION [12/2013 - ]

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Engine / Active Test / Activate the VSV for Intake Control.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Powertrain > Engine > Active Test 

   Tester Display
   Activate the VSV for Intake Control

5. When "Activate the VSV for Intake Control" is turned on, check that the actuator rod operates.

   If the operation is not as specified, inspect the intake air control valve (for ACIS), vacuum tank and check valve.

   Refer to INSPECTION [12/2013 - ]

6. When "Activate the VSV for Intake Control" is turned off, check that the actuator rod returns to its original position.

   If the operation is not as specified, inspect the intake air control valve (for ACIS) and vacuum hose.

   Refer to INSPECTION [12/2013 - ]

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Engine / Active Test / Control the IAC Duty Ratio.

   Powertrain > Engine > Active Test 

   Active Test Display
   Control the IAC Duty Ratio

   Data List Display
   Intake Air Control Position

   1. Set the duty ratio to 60% or -60% for 1 to 3 seconds, and then return the duty ratio to 0%. Check Intake Air Control Position in the Data List.

      Standard

      Condition (Active Test)	Specified Condition (Data List)
      Control the IAC Duty Ratio set to 60%	Intake Air Control Position 35° or more
      Control the IAC Duty Ratio set to -60%	Intake Air Control Position 17° or less

      NOTE:

      • Supply power to the intake air control valve actuator (for TCV) for 1 to 3 seconds.
      • If power is supplied to the intake air control valve actuator (for TCV) for less than 1 second, the gear of the tumble control valve (TCV) does not reach the stopper and the value in the Data List may be incorrect.
      • If power is supplied to the intake air control valve actuator (for TCV) for more than 3 seconds, the motor may be damaged.
      • Do not perform this inspection more than 2 times consecutively.

      HINT: 

      The standard duty ratio for inspections is 60% or -60%. However, if the value in the Data List is not as specified, set the duty ratio to 100% or -100% for 1 to 3 seconds, and check the value in the Data List again.

      Standard

      Condition (Active Test)	Specified Condition (Data List)
      Control the IAC Duty Ratio set to 100%	Intake Air Control Position 70° or more
      Control the IAC Duty Ratio set to -100%	Intake Air Control Position 2° or less

5. If the result is not as specified during the Active Test, perform the following inspection.
   1. Remove the intake manifold.

      Refer to REMOVAL [12/2013 - ]

      HINT: 

      When the intake manifold is removed, the 4 tumble control valves (TCV) are half open.

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      *a	Closed
      *b	Open

   2. Check that the 4 tumble control valves (TCV) move when the battery is connected to the terminals of the intake air control valve actuator (for TCV).

      Standard

      Tester Connection	Specified Condition
      Positive (+) battery voltage applied to terminal 4 (M-), and negative (-) battery voltage applied to terminal 5 (M+)	Open → Closed
      Positive (+) battery voltage applied to terminal 5 (M+), and negative (-) battery voltage applied to terminal 4 (M-)	Closed → Open

      NOTE:

      • Apply battery voltage for 1 to 3 seconds.
      • If battery voltage is applied for more than 3 seconds, the intake air control valve actuator (for TCV) may be damaged.
      • If the positive (+) and negative (-) battery leads contact the sensor terminals, the intake air control valve actuator (for TCV) may be damaged.
   3. If the result is not as specified, perform the following inspection.
      1. Check that the 4 tumble control valves (TCV) are not cracked or deformed.

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      2. Remove the intake air control valve actuator (for TCV) and check that the 4 tumble control valves (TCV) move smoothly.

         Refer to REMOVAL [12/2013 - ]

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

         If there are no problems with the 4 tumble control valves (TCV), inspect the intake air control valve actuator (for TCV).

         Refer to INSPECTION [12/2013 - ]

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

   Refer to INITIALIZATION [12/2013 - ]