Intake System

3UZ-FE INTAKE: INTAKE SYSTEM: ON-VEHICLE INSPECTION

1. INSPECT INTAKE AIR CONTROL FUNCTION

(a) Remove the V-bank cover.

(b) Turn the ignition switch OFF.

(c) Connect the Techstream to the DLC3.

(d) Turn the ignition switch ON.

(e) Turn the tester ON.

(f) Enter the following menus:

Select: Powertrain / Engine / Active Test / Activate the VSV for Intake Control.

(g) Check that the VSV (for ACIS) is ON (sealed) under either of the following conditions.

* Depressing the accelerator pedal to a throttle valve opening angle of 60°.

* Racing the engine above 4,700 rpm.

(h) Check that the VSV (for ACIS) is OFF (vented) under either of the following conditions.

* The engine is idling.

* Releasing the accelerator pedal while under the VSV (for ACIS) ON condition.

(h) If the result is not as specified, inspect the intake air control valve, vacuum tank and VSV (for ACIS) for normal operation. Replace malfunctioning parts as necessary.