Output Signals

ECM processes information from input sensors and sends appropriate voltage control signals to control devices. See Fig 1 for components.

NOTE: Vehicles are equipped with different combinations of computer-controlled components. Not all components listed below are used on every vehicle. For theory and operation of each output component, refer to system indicated after component.

Fig 1: Identifying ECM Output Signals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying ECM Output Signals (Legend)

Courtesy of VOLVO CARS OF NORTH AMERICA.