Electronic control unit (page 2 of 2)

Make

Fiat

Model

Scudo Factory Service Manual

Year

1996–2006

Section

Fuel system (1581 SPI Monomotronic)

10 EngineElectronic control unit · page 2 of 2

1. Coil operation (cylinders 1, 4)
2. NC
3. Negative for engine rpm sensor
4. F/L Tester (line K)
5. NC
6. NC
7. NC
8. Earth for micro-switch recognizing butterfly closure
9. Negative for Lambda sensor signal
10. Positive for Lambda sensor signal
11. Butterfly position sensor outlet
12. Butterfly position sensor outlet
13. Positive for coolant temperature sensor
14. Positive for air temperature sensor
15. NC
16. Control unit supply (+30)
17. Control unit supply (+30) from twin relay
18. Earth for control unit
19. Coil operation (cylinders 2-3)
20. Earth for control unit
21. Positive for engine rpm sensor
22. Air conditioning switch (if fitted)
23. Coded anti-theft control unit input
24. Rev counter signal
25. Supply for butterfly position sensor
26. NC
27. Negative for coolant/air temperature/butterfly position sensors
28. Negative for twin relay coil (electric fuel pump, injector, Lambda sensor)
29. Negative for charcoal filter solenoid valve
30. Air conditioning relay (if fitted)
31. System warning light/outlet for coded anti-theft device control unit
32. Idle speed regulator supply
33. Earth for control unit
34. Negative for idle speed regulator
35. Negative for injector

02 Engine