Problem with DLC

[Mr.RNR]

I have no communication with my truck but I have power and I check the DLC and I found 4 wires

2-pin purple wire

4-pin black

5-pin black with white

12-pin orange

someone can help me?

[8.1HD/ALLISON]

Check cig lighter fuse. If blown you will have no power.

[Mr.RNR]

the fuse it's ok and the grounds but i don't know for what it's the purple one?

[8.1HD/ALLISON]

Here is a link that has functions if you scroll to the page.

http://download.efilive.com/Tutorials/PDF/Bench%20Harness%20Tutorial.pdf

[Mr.RNR]

Thank you very much. Now I have another question, I found the pin on the computer. You think it's a good idea to make a direct connection between the DLC (purple wire) to the computer.(58 pin)