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📌 What Is An ECU? Electronic Control Unit (ECU) Explained:

Quite simply put ECU is a device that controls all the electronic features in a car. This may range from fuel injection to maintaining perfect cabin temperature to controlling braking and suspension. Some vehicles have multiple ECU controlling different features while some have a single one controlling everything.

Types Of ECU:

With vehicles having multiple ECUs they are divided on what tasks they perform. Some of these types are as follows.

1. Engine Control Module: With its sensors, the ECM ensures the amount of fuel and ignition timing necessary to get the most power and economy out of the engine.

2. Brake Control Module: Used in vehicles with ABS, the BCM makes sure that the wheels are not skidding and determine when to trigger braking and let go of the brake to ensure the wheels don’t lock up.

3. Transmission Control Module: Used on an automatic vehicle, the TCM ensures you get the smoothest shifts possible by assessing the engine RPM and acceleration of the car.

4. Telematic Control Module: Another one with the same abbreviation this TCU ensures the car onboard services are up and running. It controls the satellite navigation and Internet and phone connectivity of the vehicle.

5. Suspension Control Module: Present in Cars with active suspension systems, the SCM ensures the correct ride height and optimal changes to suspension depending on the driving condition.

What Happens if An ECU Is Faulty?

A faulty ECU is probably the worst thing for a car. It’ll work but its performance will be heavily affected. You’ll notice sudden drops in fuel economy and jerky gear shifts. The check engine light staying on might mean a lot of possible errors but an ECU fault is one of the major ones.

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In this video, we will briefly get acquainted with the sensors of a gasoline injection engine in a car. The following sensors will be discussed:1. 00:28 Mass...

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