The ECM (Engine Control Module) is a computer designed to control different sections of the vehicle. It constantly monitors many components to ensure that they are working properly.
The hardware is composed of microprocessors and memory chips, which are used to monitor the inputs as well as activate the outputs.
There is a similarity between software and hardware, besides, the software is specific as it can apply to only one brand, model, engine type, transmission, and so on. It is worth mentioning that the software is usually factory-installed, but some models allow reprogramming with the help of a scanning tool.
The ECM monitors itself as well as other controllers in the network for faults. If it finds problems such as memory loss or data corruption, the diagnostic code (DTC) P0607 OBD2 is stored.