Throttle Position Sensor: Testing and Inspection

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

1. INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY

(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 with motor body assembly.

(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 Sensor Position

(5) Depress the accelerator pedal. When the throttle valve is fully opened, check that the value of "Throttle Sensor Position" 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.