Does anyone have a 'How To' on this subject ?? (TC Lockup Switch)



05/3500/

 

If you will note the description it doesn't work on 1999 and up vehicles.

In addition, that boy can't decide if its a manual or auto.


You need to tap pin #7 on the trans control connector, run the wire to one end of a single throw switch, wire a 25ohm 1/2 watt resistor between the other end of the switch and ground.

Failure to do so will result in CEL events and put the trans into limp mode.

 

thank you for that could you elaborate a little.."need to tap pin #7 on the trans control connector". where do I find the Trans control connector ?

 

ANYONE ???

 

Theres gotta be a way to do this on the 47/48re 99 and up trucks also. I hate where my converter locks up. If knowone knows how to do this I will get the service manual and figure it out. There is nothing more annoying than getting behind someone doing 40 which is right where the converter locks up and having it go in and out of lock-up. Also, dodge really screwed up the logic in the trans brain, it always locks up right when I don't want it to.

 

Read here:
https://www.dieseltruckresource.com/...ad.php?t=84312



MT

 

THANKS M/T ...HERE IT IS ...

The Definitive Howto: 04.5-05 Tc Lockup Switch
Since alot of people are asking, and I've tried without success in the past. I decided to work on it a little today and figured it out. My 05 can lock the TC up in FIRST GEAR. I thought you needed a modded VB for that, guess not. It's really simple to do this. All you need is a on-off switch. Ground one side to metal anywhere in the truck. I mounted my mystery switch next to my MP-8 volume ****, just to the right.

Go under the truck and disconnect the ROUND plug. Put a tap however you like into Pin #7 and run the wire to the switch. Now go to the fuse block and find #59 relay. It's next to the fuse marked 50. Put a peice of wire between Pin #'s 30 and 87, not 87A. Your done now. It will even lockup in first. I just did a burnout (no camera ) I started it in first, got some wheelspin, hit the switch, moved to 2nd, then D and smoked them like I never have about a block long. 4wd launches are alot more fun. Just remember to ground pin#7. It's great.

 

Finish reading that thread, you don't have to mess with the relay. Just wire a resistor into the switch to pin #7. This should work the same way on all the pevious years also. Just find the TC lockup sense wire for the particular year.

 

so are you saying that all you have to do is ground the number 7 terminal to make the torque converter lock up or am i missing something in between

 

That is what they are saying, you do need a resistor in the switch circuit or it will throw a code and limp mode. I think mine is a 33ohm resistor.

 

Yes. The system monitors resistance between 5 ohms and 100k ohms. Anything outside that range triggers limp mode and a CEL. Amy 1/2 watt or 1 watt resistor from 5-100k ohms will work.

 

You need to tap pin #7 on the trans control connector, run the wire to one end of a single throw switch, wire a 25ohm 1/2 watt resistor between the other end of the switch and ground.

Failure to do so will result in CEL events and put the trans into limp mode.

 

I am confused...so very confused

one person says 'ground it(#7)

the other says DON'T dead ground it put a resister in line...

 

Does this work on the 06 also?? Dont feel bad Belgianmagic, im confused now too!