Throttle Position Sensor: Testing and Inspection

1UR-FSE ENGINE CONTROL SYSTEM: THROTTLE BODY: ON-VEHICLE INSPECTION

1. CHECK THROTTLE BODY

(a) Check the throttle position sensor.

(1) Connect the Techstream to the DLC3.

(2) Turn the engine switch on (IG).

(3) Push the Techstream main switch ON.

(4) Enter the following menus: Powertrain / Engine / Data List / Throttle Sensor Position.

(5) Start the engine.

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

Standard throttle valve opening percentage:

60% or more

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