How does this work? How are you guys running a transbrake? And specifically for a th350.

 

I have a brake on my 4l80. It has nothing to do with the stock pcm. I don't see how it would either especially in a th350 or th400 becuase the computer doesn't control them at all. What exactly are you wanting to know?

 

The ECU has absolutely zero connection with a TH350.

 

Okay that just shows how much I know! For some reason I thought it was connected to the computer. I guess I thought it had to get power from the pcm... You mind explaining how your tb is hooked up?

Really? The person posting before you made that clear.

 

He said that the PCM doesn't control the trans, he didn't say anything about other connections. The PCM doesn't control the 6-speed either, but there is still connectors for it in the harness.

 

I had to run a 12v source to the transmission connector. The brake wire was already added to the internal harness. I hooked it up to the button on the b&m shifter. I have it on a switch as well so I don't accidentally engage it if I'm driving around. I hope that helps.

But yeah on your th350 there's nothing from the pcm to hook to it. However your brake is suppose to be setup either via ground or 12v. You'd just need to run a extra wire for that. It's probably 12v you'll need. Then you could run it into a switch and button or just a button only if you'd like. Really up to you how you want to wire it up

 

Perfect! Thanks!!