- 1. Engine control unit (ECU)
- 2. Diagnostic Link Connector (DLC)
- 3. Malfunction indicator light
- 4. "Ground" of the ECU unit
- 5. Fuse box
- 6. Exhaust Gas Recirculation (EGR) Valve
- 7. Fuel injector
- 8. Idle speed control valve (ISCV)
- 9. Fuel pump relay
- 10. Cooling system fan relay
- 11. Cooling system fan relay (for cars with air conditioning)
- 12. Electronic ignition system coil
- 13. Evaporative Evaporative Blow-Off Valve
- 14. Main relay
- 15. Air conditioning compressor relay
- 16. Manifold Pressure (MAP) Sensor
- 17. Oxygen sensor (control) (HO2S1)
- 18. Throttle position sensor (TP)
- 19. Coolant temperature sensor (ECT)
- 20. Intake Air Temperature (IAT) Sensor
- 21. Vehicle Speed Sensor (VSS)
- 22. Variable Geometry Induction System (VGIS) sensor
- 23. Crankshaft position sensor (CPS)
- 24. Knock sensor
- 25. Oxygen sensor (diagnostics) (HO2S2)
- 26. Camshaft position sensor (CMP)
- 27. Adsorber
- 28. Engine oil pressure sensor
- 29. Air filter
The electronic engine control system (ECS) unit receives input signals from the following system elements: 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26.
After processing the received data, the ECM sends control pulses to the following system elements: 20, 21, 22, 23, 24, 25, 26, 27, 28, 29.
Non-ECU related items: 27, 28, 29.
Elements located on the ECM bus: 1, 2, 3, 4, 5.
