Throttle Position Sensor: Adjustments

Adjust the throttle position sensor
1. Connect the throttle position sensor connector.

NOTE: Do not connect the accelerator pedal position sensor connector.

2. Connect the TOYOTA hand-held tester or OBD II scan tool to the DLC3.
3. Turn the ignition switch ON.

NOTE: After turning the ignition switch ON, do not depress the accelerator pedal.

4. While reading the value of the throttle valve opening percentage (THROTTLE POS) of the CURRENT DATA, turn the throttle position sensor slowly to left and right and set the sensor at the center value of the standard value, and then tighten the screws.

Standard throttle valve opening percentage:
14.4 - 16 %

Torque: 2.0 Nm (20 kg.cm, 18 in.lb)

5. Recheck throttle valve opening percentage.

If the throttle valve opening percentage is not as specified, repeat step (4).

6. Perform fully closed throttle valve by hand and check that the valve of the throttle valve opening percentage (THROTTLE POS) of the CURRENT DATA stays with the standard value.

Standard throttle valve opening percentage:
10 - 14 %

If the throttle valve opening percentage is not as specified, repeat steps (4) to (6).

7. Paint the 2 set screws.
8. Turn the ignition switch OFF.
9. Disconnect the TOYOTA hand-held tester or OBD II scan tool from the DLC3.
10. Disconnect the throttle position sensor connector.