Two brackets on the car monitor, one is a lightning red light.

Two brackets on the car display screen, one is a lightning red light and the other is an electronic throttle warning light. Electronic throttle is an important control part of automobile engine, and the throttle opening can be accurately controlled by using electronic throttle control system. Don't panic if we encounter this situation in the usual driving process. We'll be all right in a minute. Don't worry about him. If it stays on, we will contact the repair shop for maintenance. In bad weather, clean the air filter frequently to shorten the frequency of replacing the filter.

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. Visually check whether the electronic accelerator pedal works normally, whether the throttle opening sensor wiring harness is inserted in place, and check the power supply and grounding. Check whether there is an open circuit or abnormal pressure drop with a multimeter, and 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, when it is idling, the voltage is about 0.5V Check whether the voltage value is linear.