Tips Sahabat

What is ECM (Engine Control Module) in Cars? This is Its Function

09 April 2025
Apa itu ECM (Engine Control Module) Pada Mobil? Ini Fungsi dan Cara Kerjanya

The development of technology in the automotive field, especially cars, is progressing rapidly. In recent years, cars on the market have been equipped with ECM (Engine Control Module) features. So what is the function of this feature? How does it work in cars? To answer all these questions, let's take a look at the following review. 

What is ECM (Engine Control Module) in Cars?

ECM stands for Engine Control Module. The ECM itself is one part of the ECU (Engine Control Unit) of the car. As is known, the latest cars have adopted the EFI (Electric Fuel Injection) system as a replacement for the carburetor system. The EFI system is closely related to the ECU. Because all activities such as ignition timing, engine rotation calculations, fuel mixing, and air-fuel mixing in the EFI system can be controlled through computerized processes via the ECU.

Inside the ECU, there are several components ranging from the ABS Control Module, TCM (Transmission Control Module), BCM (Body Control Module), Airbag Control Module, to ECM (Engine Control Module). Each of these components has different functions.

The ECM can be referred to as a complete engine performance control circuit. In fact, many automotive experts consider the ECM to be the “brain” of modern cars. This is because the ECM can control the performance of the car's engine while also protecting the engine if there are issues. When the car has a problem, the sensors connected to the ECM will send a signal. Then, the ECM will read that signal and deactivate several problematic systems in the car. 

Functions of ECM in Cars

The ECM in cars has the following functions: 

1. Determines injection duration

The ECM functions to determine the duration of fuel injection during the engine combustion process. This happens because there are many sensors in the ECM that will send accurate information or signals regarding the fuel pressure needs. The ECM also allows the fuel injection system to function automatically.

2. Controls ignition timing

The ECM also functions as a timing controller for ignition in the engine. As is known, the ignition process in the engine cannot be done arbitrarily as it can affect engine performance. With the ECM, fuel can be converted into power with the correct ignition timing.

3. Addresses cold engine

For the car to be started, the engine must not be cold. To achieve this, you need the help of a cold starter in the ECM. This cold starter functions to start the engine so that it can operate even when cold.

4. Stabilizes engine power

When the car is at low RPM, the engine is likely to experience detonation. This occurs due to a decrease in engine power. To prevent this condition, the ECM will maintain and stabilize engine power to remain high even at low RPM.

5. Controls vehicle speed

The ECM also functions as a speed controller for cars with automatic transmission. As you know, automatic transmission cars are not equipped with a clutch feature to control speed. Here, the role of the ECM is needed to replace the function of the clutch so that the vehicle speed can be adjusted automatically. 

How ECM (Engine Control Module) Works

The ECM has a simple working mechanism. When several car systems experience problems, for example, the injection system. The sensors in the ECM will send a signal indicating a problem. This signal will then be read by the ECM, and the ECM will work according to the problem that occurs. The ECM can even deactivate the problematic system.

Thus, the review regarding the functions and workings of the ECM that you need to know. Don't forget to perform regular maintenance at the nearest Daihatsu workshop, so that your car's ECM does not have issues.

Others Tips Sahabat
perbedaan spooring dan balancing
The Difference Between Wheel Alignment and Balancing and Their Maintenance Costs
The importance of maintaining a four-wheeled vehicle cannot be overlooked, and among the series of maintenance actions, wheel alignment and balancing play a key role in ensuring optimal performance. W
daihatsu ceria
Daihatsu Ceria: History, Specifications, Price, and Features
Daihatsu Ceria is another car from Daihatsu that is worth collecting. Although it is no longer in production, this car is still sought after by car enthusiasts.Its compact shape and relatively afforda
Ketahui Persyaratan Perpanjang SIM 2025 Online dan Offline
Know the Requirements for Extending SIM 2024 Online and Offline
Knowing the various requirements for extending a driver's license both offline and online is important. By understanding the requirements, the extension process will be easier. Here are the requiremen
Jadwal Ganjil Genap Jakarta Hari Ini: Jam, Jalur & Peraturan Terbaru
Odd-Even Schedule Jakarta Today: Time, Routes & Latest Regulations
The odd-even policy in Jakarta is a regulation implemented by the city government to control the number of vehicles passing through certain roads at specific times. This policy not only serves as a so
© Copyright 2025 PT Astra Daihatsu Motor. All rights reserved
Privacy Policy
Contact Us