It controls the satellite navigation and Internet and phone connectivity of the vehicle. Used on an automatic vehicle, the TCM ensures you get the smoothest shifts possible by assessing the engine RPM and acceleration of the car.Īnother one with the same abbreviation this TCU ensures the car onboard services are up and running. 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. 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. With vehicles having multiple ECU they are divided on what tasks they perform. With vehicles having multiple electronic control units, they are divided on what tasks they perform. Similar Read: BHP vs Torque | Which is the Real Deal and Why? Some vehicles have multiple ECU controlling different features while some have a single one controlling everything. This may range from fuel injection to maintaining perfect cabin temperature to controlling braking and suspension. Quite simply put ECU is a device that controls all the electronic features in a car. There are multiple ECUs in a car that operates different features and controls multiple parameters. ECU or Electronic Control Units are one of the most important parts of a vehicle.
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