Output Signals

The MCU processes information from the input sensors and sends appropriate voltage control signals to control devices. For theory and operation of specific output components, refer to system indicated in parenthesis.

• CHECK ENGINE Light (Self-Diagnostic System).
• Fuel Evaporative Control Valve (Emissions Systems).
• Fuel Injectors (Fuel Control).
• Fuel Pump Relay, Main Relay and Oxygen Sensor Heater Relay (RELAYS).
• Idle Speed Actuator (Idle Speed).
• Ignition Coil (Ignition Systems).