Transbrake w/ stock ecm

Reply Subscribe

Thread Tools

Search this Thread

Dec 27, 2016 | 12:37 PM

TXCatfish

Thread Starter

TECH Regular

Joined: May 2012

Posts: 442

Likes: 0

Transbrake w/ stock ecm

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

Dec 28, 2016 | 12:09 AM

Firebirdmuscle

10 Second Club

iTrader: (16)

Joined: Jan 2012

Posts: 1,213

Likes: 15

From: Mississippi

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?

Dec 28, 2016 | 08:16 AM

JoeNova

Restricted User

Joined: Mar 2014

Posts: 7,192

Likes: 109

From: Ohio

The ECU has absolutely zero connection with a TH350.

Dec 28, 2016 | 08:38 AM

TXCatfish

Thread Starter

TECH Regular

Joined: May 2012

Posts: 442

Likes: 0

Quote:

Originally Posted by Firebirdmuscle

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?

Quote:

Originally Posted by JoeNova

The ECU has absolutely zero connection with a TH350.

Really? The person posting before you made that clear.

Dec 28, 2016 | 08:46 AM

JoeNova

Restricted User

Joined: Mar 2014

Posts: 7,192

Likes: 109

From: Ohio

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.

Dec 28, 2016 | 10:10 AM

Firebirdmuscle

10 Second Club

iTrader: (16)

Joined: Jan 2012

Posts: 1,213

Likes: 15

From: Mississippi

Quote:

Originally Posted by TXCatfish

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.

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