Burlapen

I want to run a T56 behind my 5.3 but finances may force me to run a TH400 for awhile. As far as the wiring harness goes, what exactly would the harness to a T56 incorporate? Would it be something I would be able to ad to my harness later or does the T56 even have any input to the computer at all? This is a 2001 5.3, I am planning on modifying the stock wiring harness. Thanks!

borrone821

iTrader: (3)

According to everything I've read and responses I've gotten, the only thing you need to wire up is the reverse lockout.
Apparently some guys hook it up to the brake pedal switch.

But nothing else needs to be hooked up to run from what I've been told

psiconversion

iTrader: (5)

VSS as well. Tune skipshift out of PCM.

borrone821

iTrader: (3)

Where is the VSS located on the trans?
And I heard you shouldn't plug in the skipshift, that it wont' do anything.

I'm running an LY6 and I don't think the skipshift is on my tune since the LY6s never came with a manual trans. Can anyone confirm this?

bczee

iTrader: (12)

VSS sensor is located in the tail housing left side. not hard to find.

For the skipshift.. you can wire in the brake pedal or use a seperate switch, I use a linelock switch on my shifter.

if you don't use it.. it will be hard to shift into reverse. You can always remove it and plug the hole. but then you rise the chance of shifting into reverse while up or down shifting into/out of 5th gear. Not a good picture doing that at speed.

the_merv

iTrader: (88)

Here is a good pic of the Reverse Lockout Solenoid, and the VSS right below it..



That plug in the side is where the Skip Shift Solenoid wouldve went.

You mean Reverse Lockout..

Pocket

iTrader: (22)

Here you go


Add VSS and that's all you need. If I were you, Id wire it for a T56 from the start and just leave the unused connectors zip-tied out of the way until the T56 goes in. PCM tune is the same either way