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XG350 (Electronic Throttle System - ETS)

  1. Turn ignition off. Disconnect TP sensor 4-pin harness connector. See Fig 1. Measure resistance between TP sensor connector terminals No. 1 and 3 (component side). Standard resistance value should be 3500-6500 ohms. If resistance is as specified, go to next step. If resistance is not as specified, replace TP sensor.
  2. Measure resistance between TP sensor connector terminals No. 3 and 4 (component side). Open throttle valve slowly from idle position to wide-open throttle position. Resistance should change smoothly in proportion to the throttle valve angle. If resistance changes as specified, go to next step. If resistance does not change as specified, replace TP sensor.
  3. Reconnect TP sensor harness connector. Connect Hi-Scan Pro tool or equivalent to OBD-II Data Link Connector (DLC). See Figure. Turn ignition on and monitor for TP sensor PID value. Voltage should be 0.30-0.90 volts at idle position and 4.25-4.70 volts at wide open throttle. If voltage is not as specified, replace TP sensor.
Fig 1: Identifying Throttle Position Sensor Connector Terminals (XG350 - ETS)
G00162107Courtesy of HYUNDAI MOTOR CO.
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