BMW Bosch DME Motronic 1.3 Connector / Plug Pinout Diagram

 

Pin Connection

1. 1  ignition coil: t1

2. 2  earth, ignition driver

3. 3  pump relay driver: t85

4. 4  ISCV switching: t1

5. 5  CFSV switching: t1

6. 6  tachometer

7. 7  AFS signal: t2

8. 8  CID signal: t2

9. 9  unused

10. 10  OS return: t4

11. 11  unused

12. 12  AFS supply: t3

13. 13  diagnostic socket : t15

14. 14  earth, injector driver

15. 15  warning lamp (US only)

16. 16  injector pulse, cyls 2 and 4

    (model year 89: cyls 1 and 3)

17. 17  injector pulse, cyls 1 and 3 (model year 89: cyls 2 and 4)

18. 18  battery supply: t30

19. 19  earth, main ECM and shield

20. 20  unused

21. 21  unused

22. 22  unused

23. 23  OS relay driver : t85

24. 24  earth, output drivers other

    than injector & ignition

25. 25  unused

26. 26  AFS return: t5

27. 27  ignition switch: t15

28. 28  OS signal: t3

29. 29  VSS

30. 30  unused

31. 31  CID return: t1

32. 32  fuel consumption meter

33. 33  kick down prevent, AT

34. 34  unused

35. 35  unused

36. 36  main relay driver: t85

37. 37  nbv supply from main relay: t87

38. 38  anti-theft system

39. 39  diagnostic socket : t18

40. 40  A/C pressure switch

41. 41  A/C motor switch

42. 42  AT drive selector

43. 43  CO pot (AFS : t3)

44. 44  ATS (AFS : t4)

45. 45  CTS signal: t2

46. 46  unused

47. 47  CAS: t1

48. 48  CAS return: t2

49. 49  unused

50. 50  unused

51. 51  Ignition timing intervention (Electronic transmission control)

           Note: temporarily switched on during AT downshifts

52. 52  TPS idle contact : t1

53. 53  TPS full-load contact : t3

54. 54  unused

55. 55  diagnostic socket : t20