Using Voltmeter

1. Disconnect the throttle position sensor connector.
2. Measure resistance between terminal 2 (sensor ground) and terminal 1 (sensor power).
   Fig 1: Measuring Resistance Between Terminal 2 (Sensor Ground) And Terminal 1 (Sensor Power)

   Courtesy of HYUNDAI MOTOR CO.

   Standard value: 1.6 - 2.4 kΩ

3. Connect a pointer type ohmmeter between terminal 2 (sensor ground) and terminal 1 (sensor output).
4. Operate the throttle valve slowly from the idle position to the full open position and check that the resistance changes smoothly in proportion with the throttle valve opening angle.
5. If the resistance is out of specification, or fails to change smoothly, replace the throttle position sensor.

Tightening torque

TPS: 1.5-2.5 Nm (15-25 kg.cm, 1.1-1.8 lb.ft)