Heavychevy408
Newbie
I have a 98 k1500 and a wrecked 2000 silverado I was wondering can I just keep the 5.3 harness and just pin my 98 fuse box in to the ecm
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
Numbers 1-80 are the ECM Connector pins. Connector 1, Blue 0411 ECM
1. C3-18
2. Splice in 12 Volt wire from the crank shaft sensor.
3. C2-32
4. C2-11
5. Not Used
6. Not Used
7. Not Used
8. Not Used
9. Not Used
10. Not Used
11. Splice in for the Knock Senor #2
12. C1-31
13. Not Used
14. Splice in for Drive By Wire
15. Splice in for Drive By Wire
16. Not Used
17. Not Used
18. C3-11
19. C4-18
20. C3-21
21. C1-28
22. Not Used
23. Not used
24. C3-18
25. Not Used
26. C1-7
27. C3-18
28. Not Used
29. C1-25
30. Not Used
31. Not Used
32. C3-23
33. C4-10
34. Splice in from the Park/Neutral Switch
35. Not Used for Auto Trans. Is used for the Clutch Pedal Switch
36. C2-8
37. C2-16
38. Not Used
39. Not Used
40. C3-17
41. Not Used
42. Splice in from Relay for Fan
43. C2-12
44. C2-31
45. Splice in if using the A/C
46. Not Used
47. Not Used
48. C3-27
49. Not Used
50. Not Used
51. C2-19
52. Not Used
53. C3-16
54. C3-19
55. Not Used
56. For the e85 Conversion
57. C3-21
58. C4-11
59. Not Used
60. Not Used For Cable Throttle
61. C1-8
62. Not Used
63. Not Used
64. C3-18
65. Not Used
66. C1-21
67. C3-17
68. Not Used
69. C1-19
70. Not Used
71. Not Used
72. C3-22
73. C1-3
74. C2-23
75. C4-18
76. C2-15
77. C2-9
78. Not Used
79. C1-13
80. C3-4
Connector 2, Green 0411 ECM
1. C3-18
2. C2-7
3. Not Used
4. Not Used
5. Not Used
6. C3-6
7. Not Used
8. C3-16
9. C4-1
10. C3-9
11. Not Used
12. Not Used
13. Not Used
14. Splice in if using A/C
15. Not Used
16. Not Used
17. Not Used
18. Not Used
19. Not Used
20. C1-29
21. C1-30
22. Not Used
23. Not Used
24. Not Used
25. C2-22
26. Splice in for Bank 2 Sensor 1 H02S
27. Splice in for Ground
28. Not Used
29. Splice in for Bank 1 Sensor 1 H02S
30. Not Used
31. C2-28
32. C2-21
33. Splice in for the Brake Switch
34. Not Used
35. Not Used
36. Not Used
37. Not Used
38. Not Used
39. Not Used
40. C3-18
41. Not Used
42. C1-10
43. Splice in for A/C
44. Not Used
45. Not Used
46. C4-5
47. C2-4
48. C2-6
49. Not Used
50. C4-4
51. C2-27
52. Not Used
53. Not Used
54. Splice in for e85 Conversion
55. Not Used
56. Not Used
57. C2-22
58. Not Used
59. Not Used
60. Not Used
61. Splice in for Low Reference Cam Sensor
62. C3-11
63. C3-23
64. Not Used
65. Not Used
66. Splice in for Bank 2 Sensor 1 H02S
67. Splice in for Ground
68. Not Used
69. Splice in for Bank 1 Sensor 1 H02S
70. Not Used
71. Not Used
72. Splice in for Bank 1 Sensor 1 H02S
73. Not Used
74. Splice in from Bank 2 Sensor 1 H02S
75. Splice in from Ignition Switch
76. Not Used
77. Not Used
78. Not Used
79. Not Used
80. Splice in from A/C
What pcm do you have?I have a OBS Tahoe limited with a 6.0 blue and green pcm. I want to connect my original gages to the pcm. For the original gages can you help me identify the gages with the wire color so that I can connect it to the ls computer
What pcm do you have?
LaSanata- I tried responding to your PM but it wouldn't go through. Here's what I tried to send...
This is for a 1998 350, I would guess it's pretty much the same for the 2000. Hope it helps.
You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
Sent from my iPhone using Tapatalk
And that is an 0411 ECM?You must be registered for see images attachYou must be registered for see images attachYou must be registered for see images attachgot the wiring all straighten out
Iak this thread is old but im new and had a few questions?Numbers 1-80 are the ECM Connector pins. Connector 1, Blue 0411 ECM
1. C3-18
2. Splice in 12 Volt wire from the crank shaft sensor.
3. C2-32
4. C2-11
5. Not Used
6. Not Used
7. Not Used
8. Not Used
9. Not Used
10. Not Used
11. Splice in for the Knock Senor #2
12. C1-31
13. Not Used
14. Splice in for Drive By Wire
15. Splice in for Drive By Wire
16. Not Used
17. Not Used
18. C3-11
19. C4-18
20. C3-21
21. C1-28
22. Not Used
23. Not used
24. C3-18
25. Not Used
26. C1-7
27. C3-18
28. Not Used
29. C1-25
30. Not Used
31. Not Used
32. C3-23
33. C4-10
34. Splice in from the Park/Neutral Switch
35. Not Used for Auto Trans. Is used for the Clutch Pedal Switch
36. C2-8
37. C2-16
38. Not Used
39. Not Used
40. C3-17
41. Not Used
42. Splice in from Relay for Fan
43. C2-12
44. C2-31
45. Splice in if using the A/C
46. Not Used
47. Not Used
48. C3-27
49. Not Used
50. Not Used
51. C2-19
52. Not Used
53. C3-16
54. C3-19
55. Not Used
56. For the e85 Conversion
57. C3-21
58. C4-11
59. Not Used
60. Not Used For Cable Throttle
61. C1-8
62. Not Used
63. Not Used
64. C3-18
65. Not Used
66. C1-21
67. C3-17
68. Not Used
69. C1-19
70. Not Used
71. Not Used
72. C3-22
73. C1-3
74. C2-23
75. C4-18
76. C2-15
77. C2-9
78. Not Used
79. C1-13
80. C3-4
Connector 2, Green 0411 ECM
1. C3-18
2. C2-7
3. Not Used
4. Not Used
5. Not Used
6. C3-6
7. Not Used
8. C3-16
9. C4-1
10. C3-9
11. Not Used
12. Not Used
13. Not Used
14. Splice in if using A/C
15. Not Used
16. Not Used
17. Not Used
18. Not Used
19. Not Used
20. C1-29
21. C1-30
22. Not Used
23. Not Used
24. Not Used
25. C2-22
26. Splice in for Bank 2 Sensor 1 H02S
27. Splice in for Ground
28. Not Used
29. Splice in for Bank 1 Sensor 1 H02S
30. Not Used
31. C2-28
32. C2-21
33. Splice in for the Brake Switch
34. Not Used
35. Not Used
36. Not Used
37. Not Used
38. Not Used
39. Not Used
40. C3-18
41. Not Used
42. C1-10
43. Splice in for A/C
44. Not Used
45. Not Used
46. C4-5
47. C2-4
48. C2-6
49. Not Used
50. C4-4
51. C2-27
52. Not Used
53. Not Used
54. Splice in for e85 Conversion
55. Not Used
56. Not Used
57. C2-22
58. Not Used
59. Not Used
60. Not Used
61. Splice in for Low Reference Cam Sensor
62. C3-11
63. C3-23
64. Not Used
65. Not Used
66. Splice in for Bank 2 Sensor 1 H02S
67. Splice in for Ground
68. Not Used
69. Splice in for Bank 1 Sensor 1 H02S
70. Not Used
71. Not Used
72. Splice in for Bank 1 Sensor 1 H02S
73. Not Used
74. Splice in from Bank 2 Sensor 1 H02S
75. Splice in from Ignition Switch
76. Not Used
77. Not Used
78. Not Used
79. Not Used
80. Splice in from A/C