Matching method after replacing the new engine computer;

1, first use the device Langren X400 to input the anti-theft and read the password.

2. Match the engine ECU after reading the password.

3. Enter the anti-theft password that has been read directly. After the match is successful, try it out and everything will be fine.

ECU electronic control unit, also known as driving computer, vehicle computer, etc. In terms of use, it is a special microcomputer controller for automobiles. Like ordinary computers, it consists of microprocessor CPU, memory ROM, RAM, input/output interface (I/O), analog-to-digital converter (A/D) and large-scale integrated circuits such as shaping and driving.

In a word, ECU is the brain of a car. ECU uses various sensors, including temperature sensor, pressure sensor, rotation sensor, flow sensor, position sensor, oxygen sensor, knock sensor, etc. Collect the working state information of each part of the engine and send it to ECU through the line responsible for transmission.

After receiving these signals, ECU will analyze all kinds of signals, and then it will know the information of the functions and working conditions of various parts of the engine, and then it will automatically calculate which actuators should do what in this state according to the pre-written program, and then send instructions to the actuators to command them to work.