Breakout cable

[Sledman]

Trying to make a break out cable to flash ECM's. I made hots and grounds on a cig lighter plug in. But, I get a red fault code on my USB link. Do I need to go straight to battery? Also, there are 3 hots, 2 grounds, and 2 data to flash a 70 pin, correct?

Thanks so much.

[hercamp]

maybe u need to check data resistance, dont forget there are in the harnnes .for j1939

[mathura]

I have done this before by connecting the hot and ground directly to battery, and use the 1708 communication wires to do the flashing.

You will need a plug to set up the communication wire and the hot and ground for the communication adapter.

[Sledman]

I have done this before by connecting the hot and ground directly to battery, and use the 1708 communication wires to do the flashing.

You will need a plug to set up the communication wire and the hot and ground for the communication adapter.

Thanks for the info.....I made a cig lighter plug in and the fuse was blown. Now it works great.....Thanks again!!!!