2003 ECU Wiring

[JeffL]

Hey guys, I was wondering if anyone knew which wires going to the ecu were power and which are ground? Trying to figure out if I am getting power and ground to it. Thanks



2003 3500 SRW QC 4x4 NV5600

 

[Bob4x4]

Engine control module c1 (diesel) - 60 way cav circuit function

1 - -

2 - -

3 - -

4 d1 18vt/br ccd bus (+)

5 d2 18wt/bk ccd bus (-)

6 k65 18or/rd fuel pump supply

7 k20 18dg generator field control

8 - -

9 - -

10 - -

11 - -

12 k102 18pk/bk fuel pressure sensor signal

13 - -

14 k23 18br/wt (late build m/t) apps signal no. 1

15 k21 18bk/rd intake air temperature sensor signal

16 k29 18wt/br (late build m/t) apps signal no. 2

17 k2 18tn/bk engine coolant temperature sensor signal

18 - -

19 k31 18br fuel pump relay control

20 - -

21 - -

22 g17 18wt/tn ckp signal

23 k104 18rd/wt sensor ground

24 k53 18db/rd (early build) cmp signal

24 k53 18db (late build) cmp signal

25 y501 18db/yl 5 volt supply

26 c18 18db a/c pressure signal

27 k6 18vt/wt 5 volt supply

28 - -

29 y502 18dg/yl inlet air temperature/pressure return

30 k11 16wt/db fuel injector no. 1 driver

31 g20 18vt/yl water in fuel sensor signal

32 k55 18lb/wt sensor return

33 k56 18lg/or (late build m/t) apps sensor return no. 1

34 k49 18vt/bk apps idle switch

35 - -

36 k14 16rd/wt fuel injector no. 4 driver

37 - -

38 - -

39 - -

40 k13 16tn fuel injector no. 3 driver

41 - -

42 k852 18br/vt (late build m/t) 5 volt supply

43 k9 18lb 5 volt supply

44 k101 18wt not idle switch

45 k62 18bk/or lift pump feed

46 k58 16br/db fuel injector no. 6 driver

47 - -

48 - -

49 - -

50 k12 16yl/wt fuel injector no. 2 driver

51 - -

52 k167 18br/yl sensor ground

53 g910 18vt/rd fuel pressure sensor signal return

54 k72 18dg/or 5 volt supply

55 - -

56 k38 16gy fuel injector no. 5 driver

57 k92 16tn/pk common injector driver

58 - -

59 k91 16tn/rd common injector driver

60 - -

 

[Bob4x4]

Engine control module c2 (diesel) - 50 way cav circuit function

1 k22 18dr/db throttle position sensor signal

2 k24 18wt/dg crankshaft position sensor signal

3 k69 18 br/lb injector control signal no. 1

4 - -

5 k154 18gy intake air heater relay no. 2

6 k152 18wt intake air heater relay no. 1

7 - -

8 - -

9 - -

10 y5 18or fan speed sensor

11 g7 18wt/or vehicle speed signal

12 g60 18gy/yl engine oil pressure switch sense

13 - -

14 - -

15 - -

16 d21 18pk sci transmit

17 - -

18 - -

19 d20 18lg sci receive

20 a140 16dg/wt fused b(+)

21 z816 16bk/tn ground

22 - -

23 y3 18wt -

24 k4 18bk/lb sensor ground 1

25 - -

26 g8 18 lb/bk fuel level sensor signal

27 k77 18 br/wt transfer case position sensor input

28 d25 18vt/yl pci bus

29 - -

30 a140 16dg/wt fused b(+)

31 - -

32 y135 18lg/bk fused ignition switch output (run-start)

33 - -

34 - -

35 k68 18br/lg inlet air pressure sense

36 v32 18yl/rd speed control supply

37 k29 18wt/pk brake switch sense

38 - -

39 - -

40 a140 16dg/wt fused b(+)

41 c13 18db/or a/c clutch relay control

42 - -

43 y1 18lg fan speed control

44 - -

45 - -

46 v37 18rd/yl s/c switch signal

47 k118 18pk/yl battery temperature sensor signal

48 k400 18br/vt accelerator pedal position sensor return no. 2

49 z816 16bk/tn ground

50 z816 16bk/tn ground