You will need a multimeter to check the component performance. You should switch it into resistance mode and connect to the corresponding terminals of the tested component. When you switch the pedal, the resistance should change smoothly. Sharp changes in the measured values indicate that the part needs to be replaced. Since the unit design may vary depending on the car brand and model, the order of connecting the tester probes should be specified in your car technical documents.
A more comprehensive examination of the accelerator pedal is possible at a service station using special diagnostic equipment.
