Using Voltmeter

WARNING: This page is about a different variant/trim than selected.

Disconnect the APS connector.
Check the continuity between terminal 4 and sensor ground.

Fig 1: Accelerator Position Sensor Checking Table
Courtesy of HYUNDAI MOTOR CO.
If out of specification, replace the throttle position sensor.

Fig 2: Checking Accelerator Position Sensor
Courtesy of HYUNDAI MOTOR CO.