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 brackets.

• "CHECK ENGINE" Light (SELF-DIAGNOSTICS).
• Fuel Evaporative Control Valve (EMISSIONS).
• Fuel Injectors (FUEL CONTROL).
• Fuel Pump Relay, Main Relay and O2 Sensor Heater Relay (RELAYS).
• Idle Speed Actuator (IDLE SPEED).
• Ignition Coil (IGNITION).