Detailed explanation of the principle and detection method of automobile electronic throttle

The best way is to read the data stream and detect it by reading the fault code from obd port. If there is no special testing equipment, use an ordinary multimeter to test. Details are as follows: 1. Visually check whether the electronic accelerator pedal works normally and whether the throttle opening sensor wiring harness is inserted in place; 2. Check the power supply and grounding. Use multimeter to check whether there is an open circuit and abnormal voltage drop; 3. Measure the different opening voltages of the throttle position sensor. When the throttle valve is fully open, the voltage is about 5V, and when it is closed, that is, at idle speed, the voltage is about 0.5 V: and check whether the voltage value is linear.