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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 after component.

  1. A/C RELAY

    See MISCELLANEOUS CONTROLS.
  2. CHECK ENGINE Light

    See SELF-DIAGNOSTIC SYSTEM.
  3. EGR CONTROL SOLENOID VALVE

    See EMISSION SYSTEMS & SUB-SYSTEMS.
  4. FUEL INJECTORS

    See FUEL CONTROL under FUEL SYSTEM.
  5. FUEL PUMP RELAY

    See FUEL DELIVERY under FUEL SYSTEM.
  6. IDLE SPEED CONTROL SERVO

    See IDLE SPEED under FUEL SYSTEM.
  7. POWER TRANSISTOR(S) & IGNITION COIL(S)

    See IGNITION SYSTEM.
  8. PURGE CONTROL SOLENOID VALVE

    See EMISSION SYSTEMS & SUB-SYSTEMS.
  9. TURBOCHARGER PRESSURE CONTROL

    See AIR INDUCTION SYSTEM.
  10. TURBO METER CONTROL

    See AIR INDUCTION SYSTEM.