Output Signals

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 on each output component, refer to the system indicated in brackets after component.

A/C Relay (Idle Speed)
Automatic Idle Control Valve (Idle Speed)
CHECK ENGINE Light (Self-Diagnostic System)
Fuel Pump Relay (Fuel Delivery)
Fuel Injectors (Fuel Control)
Exhaust Gas Sensor Heater Control (Emission Systems)
Mass Airflow Meter Self-Cleaning (Input Devices)
Self-Diagnostics (Self-Diagnostic System)
Wastegate Solenoid (Air Induction Systems)