Output Signals
ECU processes information from input sensors and sends appropriate voltage control signals to control devices.
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 in brackets after component.
- Canister Purge Valve (Emission Systems)
- CHECK ENGINE Light (Self-Diagnostic System)
- Cold Start Valve (Fuel System)
- Detonation (Knock) Sensor (Ignition Timing Control)
- EGR Control Solenoid Valve (Emission Systems)
- Fuel Injectors (Fuel System)
- Idle Valve (Idle Speed)
- Oxygen Sensor Heater Control (Emission Systems)
- Power Transistor & Ignition Coil (Ignition System)