Input Devices: Notes
NOTE:
Components are grouped into 2 categories. The first category covers INPUT DEVICES , which control or produce voltage signals monitored by the ECM. The second category covers OUTPUT SIGNALS , which are components controlled by the ECM.
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. Available input signals include the following.