Waveforms

Position sensor

Position sensor is a potentiometer with one or two characteristic curves.

Applications:

  • throttle position sensor;
  • accelerator pedal position sensor;
  • air flow sensor;
  • EGR valve position sensor;
  • fuel level sensor;
  • transmission range sensor.
Output voltage waveform from a properly functioning throttle position sensor (Mitsubishi Lancer 1.6 2005).
Output voltage waveform from a properly functioning throttle position sensor (Mitsubishi Lancer 1.6 2005).

Output voltage waveform from a properly functioning throttle position sensor (Mitsubishi Lancer 1.6 2005).
A B – throttle valve opening;
C D – throttle valve closing.

Output voltage waveforms from a properly functioning throttle position sensor
Output voltage waveforms from a properly functioning throttle position sensor

Output voltage waveforms from a properly functioning throttle position sensor (Toyota Avensis 1.8i 2007).

Output voltage waveforms from a properly functioning throttle position sensor

Output voltage waveforms from a properly functioning throttle position sensor (VW Passat 1.8TSI 2008).

Output voltage waveforms from a properly functioning throttle position sensor

Output voltage waveforms from a properly functioning throttle position sensor (VW Passat 1.8 1991).

Output voltage waveform from a malfunctioning  throttle position sensor.

Output voltage waveform from a malfunctioning throttle position sensor. The resistor track is worn and the wiper loses electrical contact in certain positions.

Output voltage waveform from a malfunctioning throttle position sensor.

Output voltage waveform from a malfunctioning throttle position sensor. The resistor track is worn and the wiper loses electrical contact in certain positions.