What Is Car ECU?
by Don Altick -
The car ECM is a computerized control unit which used in present day automotive's to control its computerized modules. Collecting real time data from sensors and sending output to it's components, the engine control module alter the appropriate functioning of the auto.
The vehicle main computer collect inputs from various modules in the motor vehicle like the combustible fuel system and crankshaft sensors to effectively compute information like cooling system, exhaust, intake and a few other components to assest and control the driving condition of the transmission, engine system as the traction control (ABS), the lighting control, the camshafts position and so on.
A simple example is the speed detector found on the wheel which examine the wheel speed and transmits the information to the auto motive's computer. This way, instead of distributing signals to number of wires from one detector, the signals would be transferred by the automotive computer to all the wired units that need this information such as the suspension system, speedometer, ABS and so on.
On-board Diagnostics Port
An automobile that incorporate engine control unit will also arrange On Board Diagnostics (OBD) interface to enable driver or officials to plug diagnostics equipage in order to diagnose and configure the vehicle computer condition.
Car ECM antitheft control
The car immobiliser is anti theft system partition in the engine control module. It accomplishes prevention of the car engine from kindling unless driver is employing a commissioned key. This mechanism adopts a special chipped key that stores the electrical security code or plainly a pass-code. The vehicle computer system wouldn't activate the injection system instrumentation and the ignition cylinder if the code in the key isn't in sync with the code stored in the immobiliser.
Worldwide auto makers use other types of ECUs such as the ECM (Engine Control Module), GEM (General Electric Module, BCM (Brake Control Module)) and more. Latest auto motive might have a number of ECUs and with this growing complexity, the coding entailed in configuring or resetting the engine control unit is becoming more troublesome to maintain.