Fiat Bravo/Brava - Hitachi System Control Unit Pin-Out

Engine
Fuel system
Bravo- Brava 9 **
1999 update
10.
HITACHI SYSTEM CONTROL UNIT PIN-OUT
Connector A
1. Cylinder 1 injector operation
2. Cylinder 2 injector operation
3. Cylinder 3 injector operation
4. Cylinder 4 injector operation
5. Ignition earth
6. Power earth (1)
7. Cylinder 1 coil operation
8. Cylinder 2 coil operation
9. Cylinder 3 coil operation
10. Cylinder 4 coil operation
11. Coolant temperature earth
12. Air flow meter earth
13. N.C.
14. Air flow meter signal
15. Butterfly position sensor signal
16. Coolant temperature sensor signal
17. Butterfly position sensor supply
18. Butterfly position signal earth
19. Detonation sensor signal
20. Detonation sensor earth
21. Container earth
22. Engine timing sensor signal
23. Engine rpm sensor positive
24. Engine rpm sensor negative
25. A/D converter earth
26. Coil earth
27. Charcoal filter solenoid valve operation
28. Engine rpm sensor screening
29. N.C.
30. N.C.
31. Engine timing sensor earth
32. N.C.
33. N.C.
34. N.C.
35. Power earth (2)
36. N.C.
37. Idle speed actuator operation phase 1
38. Idle speed actuator operation phase 2
39. Idle speed actuator operation phase 3
40. Idle speed actuator operation phase 4
22
Print n° 506.670/20