How to install the secondary gear in the electronic throttle position sensor

When testing the linear output throttle position sensor, turn off the ignition switch, unplug the sensor plug, and measure the position of potentiometer with the resistance of multimeter. During the test, the throttle opening is gradually increased, and the multimeter is connected between the moving contact plug and the original plug. The resistance value should decrease steadily with the increase of throttle opening. If it does not meet the requirements, it should be replaced.