On-Vehicle Inspection

2AZ-FE ENGINE CONTROL SYSTEM: THROTTLE BODY: ON-VEHICLE INSPECTION

ON-VEHICLE INSPECTION

1. CHECK THROTTLE BODY
(a) Check the throttle control motor operating sounds.
(1) Turn the ignition switch ON.
(2) When pressing the accelerator pedal, check the operating sound of the running motor. Make sure that no friction noises emit from the motor.
If friction noise exists, replace the throttle body.
(b) Check the throttle position sensor.
(1) Connect the Techstream to the DLC3.
(2) Turn the ignition switch ON.
(3) Turn the Techstream on.
(4) Select the following menus: Powertrain / Engine and ECT / Data List / THROTTLE POS.
(5) Depress the accelerator pedal. When the throttle valve is fully opened, check that the value of "THROTTLE POS" is within the specification.
Standard throttle valve opening percentage:
60% or more
NOTICE: When checking the standard throttle valve opening percentage, the shift lever should be in the neutral position.

If the percentage is less than 60 %, replace the throttle with motor body assembly.