How to solve the problem of low signal voltage of accelerator pedal of passenger cars in the north

Should be repaired in time, remove the throttle assembly, find the signal output line corresponding to the sensor, measure the line with a multimeter, pull the pedal, observe the numerical change of the instrument, and judge whether there is a fault. Check the sensor harness for open circuit or connector falling off. If damaged, replace it directly.

If the voltage of the accelerator pedal is too low, the accelerator pedal sensor will fail. If the electronic accelerator pedal is damaged, the instrument fault light will light up, the automobile accelerator pedal will become hard, and it will not be normal to step on it. It may also happen that it will not rebound and return to its original position after stepping on it, which is extremely dangerous. In addition, the electronic accelerator pedal is damaged, which will lead to the failure of the accelerator pedal sensor, the ECU can't sense the size of the accelerator, and the phenomenon of unstable idle speed, stuck accelerator and no response to refueling will occur, which will lead to the failure of the car to use normally.

The accelerator pedal is a key component in the electronic accelerator control system. Its principle is to convert the throttle demand signal into a voltage signal through the pedal position sensor and send it to ECU. ECU integrates current vehicle speed, vehicle distance, throttle opening and engine speed.