Input Devices: Notes

The ECU determines the control of various output devices based upon signals received from input devices. These devices can include sensors and switches, or simple monitored circuits, such as a RPM reference signal from the ignition coil.

Vehicles are equipped with different combinations of input devices. Not all devices are used on all models. To determine the input usage on a specific model, see appropriate wiring diagram in WIRING DIAGRAMS article. The available input signals include the following: