ECM - Engine Control Module Engine Control Module (ECM) OPERATION The heart of the electronic control system which is found on all vehicles covered by this manual is a computer control module. The module gathers information from various sensors, then controls fuel supply and engine emission systems.. The document outlines the schematic diagrams for an engine control system, including diagrams for the engine electrical system. It provides the file path for accessing schematic diagrams related to the engine control system, breaking it down by the engine electrical system and specific schematic diagrams.
The diagram below illustrates some of the primary sensors and actuators employed by the engine control module. Although cars did not have engine control modules for the first 80 - 90 years after the gasoline engine was invented, cars today would not be able to meet modern fuel efficiency and emissions requirements without them.. Powerful Plotting Engine: Work with multiple signals easily with configurable plotting windows, vertical and horizontal markers, and calculations on signals. Export plot images for inclusion in design documents. Rapid Symbol Creation: Draw generic rectangular symbols for IC or system-level wiring diagrams with just a few clicks.