What Is Car ECU?
by Robert Douglas -
The engine control module is an electric control unit which used in present day vehicles to maneuver its electric components. Reading real time data from sensors and sending output to the different module, the vehicle ECM alter the proper functioning of the automotive.
The automotive main computer gather information from several digital units in the automotive as the crankshaft and camshaft sensors to smartly compute information like injection fuel system, exhaust, cooling system and some other components to evaluate and maneuver the running working state of the engine, transmission system like the body functions, the ignition/injection timing, the traction control (ABS) and others.
A common example is the speed sensor located on the wheel which examine the car speed and transmits the information to the car main computer. Using this infrastructure, rather than handing out messages to number of wires from one sensor, the messages would be sent by the engine control unit to all the devices that use this information like the speedometer, ABS, suspension system and others.
On-board Diagnostics Port
A car that was built with engine control module will also arrange OnBoard Diagnostics (OBD) interface to let officials or driver to plug diagnostics equipage and evaluate the auto ECM settings.
Engine control module counter theft control
The car immobilization computer is anti theft mechanism partition in the auto motive computer. It bars the car engine from flaring up unless driver is applying an authorized key. This infrastructure employs a unique transponder key that stores the digital security code or plainly a password. The vehicle ECU does not light up the fuel injection infrastructure and the ignition circuit if the pin-code in the key isn't in sync with the pin-code kept in the immobilizer.
Various auto manufacturers use different types of car computers as the GEM (General Electric Module, ECM (Engine Control Module), PCM (Powertrain Control Module)) and others. Latest automobile may contain a number of ECUs and because of this development, the coding entailed in configuring or resetting the automotive computer module is becoming much more troublesome to control.