Tow/Haul mode? [Archive]

N0DIH

March 13th, 2007, 05:32 PM

How do I wire up a switch on the economy/normal shift tables so I can setup a Tow/Haul mode?

Anyone know the pinout for it? Did any cars/trucks with this VCM use it?

ChipsByAl

March 14th, 2007, 05:31 AM

what kind of vehicle are you doing this on? There is a D3601 box to enable it . There are several ways to choose the shift pattern D0409 with what pin and how it is activated is explained in the description.
AL

N0DIH

March 14th, 2007, 09:15 AM

I have a 99 K2500 454 Suburban that could benefit from it nicely.

It seems there is an economy and normal shift tables, but how do I trigger it?

I would also like to do it on a 98 Suburban K1500 350 too.

wait4me

March 17th, 2007, 05:16 PM

Yes it works, you just have to fill in tons of tables. then just run a ground to a switch and the pcm imput. :)

N0DIH

March 17th, 2007, 05:17 PM

What PCM pin do I need to ground?

N0DIH

March 27th, 2007, 07:23 AM

Anyone know what pin I need to ground to activate the alternate shift tables?