On-Vehicle Inspection [12/2013 - 11/2016]: Procedure

WARNING: This page is about a different car, the 2016 Toyota Highlander, 2015 Toyota Highlander, and 2014 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT INTAKE AIR CONTROL VALVE (for ACIS)

When using the Techstream:

Remove the V-bank cover sub-assembly.
Refer to PROCEDURE - Step 25
Connect the Techstream to the DLC3.
Turn the ignition switch to ON.
Turn the Techstream on.

Enter the following menus: Powertrain / Engine / Active Test / Activate the VSV for Intake Control.

Powertrain > Engine > Active Test

Tester Display
Activate the VSV for Intake Control

Make sure that a "click" sound is heard from the intake air control valve (for ACIS) when current flows.
If the intake air control valve (for ACIS) does not operate, check the ACIS control circuit.

Refer to ACIS Control Circuit [12/2013 - 11/2016]
Install the V-bank cover sub-assembly.
Refer to PROCEDURE - Step 84

When not using the Techstream:

Remove the V-bank cover sub-assembly.
Refer to PROCEDURE - Step 25
Disconnect the intake air control valve (for ACIS) connector.

Apply battery voltage between terminals 1 (+) and 2 (-) of the intake air control valve (for ACIS). Check that a "click" sound is heard from the intake air control valve (for ACIS).

If the result is not as specified, replace the intake air surge tank assembly.

Install the V-bank cover sub-assembly.
Refer to PROCEDURE - Step 84