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List of the table of contents of this article:

• 1, Where is the Buick Junyue ecm engine control module
• 2 
  、What is Dongfeng Tianlong ecm protection relay
• 3, What does the fault code p0685 mean?
• 4、Where is the Chevrolet Cruze engine control module
• 5, What is the car ECM module
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Where is the Buick Junyue ecm engine control module

ECThe M engine control module is usually installed in a protective box in the engine compartment. It is a small computer composed of chips, capacitors, resistors, circuit boards and other components.

There is no picture. The engine control module of Buick Regal is in the engine compartment, which is the control center of the engine control system. The engine control module can provide 5V or 12V voltage to each sensor or switch, which is achieved by adjusting the feedback resistance of the power supply inside the engine control module.

The start relay is in the fuse box, the control module is the old ECM in the empty filter shell, and the new model is on the side of the left battery.



What is the Dongfeng Tianlong ecm protection relay?

is the engine control main relay. The main function of ECM-MAIN is to supply power to the engine computer and control the functions of the engine computer.

I. ECM is an automobile engine control module and a core component of engine control. According to the input information of each sensor, it controls the fuel injection and ignition moment of the engine and provides the best control instructions for other output devices.

The reason for the failure of Dongfeng Tianlong truck EECU: the connectors of the CAN bus have virtual connection, the normal power supply connector, the virtual connection switch power supply circuit; through troubleshooting, it is found that the shutdown switch harness connector has water (close to the front wheel), and the contact needle corrosion; elimination method: rust removal through the contact needle, prevention After rust treatment, reconnect the troubleshooting.

EFI main relay is the main relay that supplies power to ECM, fuel vacuum switch valve, etc. Generally, the relay box on the side of the engine is located in the fuse box. It is a round iron shell with a connecting coil in the shell (as shown in the figure). Function: The main relay is controlled by KEY and is responsible for controlling the power supply of ECU and EFI systems.

The output insurance of the ecm main relay often bursts due to a short circuit in the line. Ecm masterThe relay output fuse often bursts and the line needs to be checked. The engine control harness ecu control line and the line next to the co-driver's debris box can be re-pulled to restart the vehicle. If the vehicle is no longer turned off, the fuse is normal, it can be used temporarily.

What does the fault code p0685 mean?

1. The fault code P0685 means: engine control module (ECM)/powertrain control module (PCM) power relay control circuit/open circuit.

2. The fault code P0685 means: engine control module (ECM)/powertrain control module (PCM) power relay control circuit/open circuit. The reasons for this kind of failure are the failure of the electric version of the engine or the problem of the relevant line.

3. Reason, for reference only: sensor damage, poor contact or signal interruption; poor engine maintenance; poor quality of fuel and oil; insufficient combustion of mixed gas; spark plug failure, ignition coil failure; fuel pump failure, oil line blockage; air conditioning filter element blockage.

Where is the Chevrolet Cruze engine control module

The engine control module of Chevrolet Cruze is on the right side of the gearbox. An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engine (resurrected plug engine), external combustion engine (Sterling engine, steam engine, etc.), jet engine, motor, etc.

The engine adjustment module of the Chevrolet Cruze is located on the right side of the gearbox.An engine is a machine that can convert other forms of energy into mechanical energy. Including internal combustion engine (resurrected plug engine), external combustion engine (String engine, steam engine, etc.), jet engine, motor, etc.

The engine control module of the Chevrolet Cruze is located on the right side of the gear box.

What is the automotive ECM module

1. ECM (Engine Control Module) controls the operation of the entire engine just like the soul of the engine.

2. The main meaning of automobile ecm is as follows: the engine electronic control module (ECM for short) has the function of continuously monitoring and controlling the normal operation of the engine;In the modern engine management system, ECM is its core control.

3. The ECM on the vehicle refers to the Electronic Control Module of the vehicle, also known as the Engine Control Module. ECM is a small computer located in the engine compartment of the vehicle to monitor and control the operation of the engine.

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