01 tcm odlo enabled

Chevy1925

don't know sh!t about IFS
Staff member
Oct 21, 2009
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ODLO wont work on 03+ trucks running the 01 OS unless you pin in a momentary switch to the TCM. not sure if the 04.5 and up are the same as the LB7.
 
Last edited:

SSchmi5519

LLY Cult Leader
Oct 19, 2008
3,387
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Arizona
If you take the stalk to the "3" position and then back to "D" real quick you can get it to shift into 4th...but if you don't do it fast enough it will go to 3rd.

I eventually had enough and the benefits weren't worth it, so I went back to my standard 05 tcm tune.
 

whytry

New member
Oct 11, 2010
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I am putting a manual switch in a 01 truck and thought I could put a 03+ TCM in for it to work but no such luck
 

whytry

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Oct 11, 2010
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I know I need the momentary switch :thumb:
I need the TCM file I thought that a 03+ TCM file would work
 

Chevy1925

don't know sh!t about IFS
Staff member
Oct 21, 2009
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Then you need an 01-02 OS with odlo enabled. 03 and up wont work in an 01-02. Sorry, hard to know what you were tryin to say as your sentences all ran together. Think I got ya now
 

whytry

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Oct 11, 2010
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Now where do I find a TCM file ? You guys on the west coast gotta have one
 

Chevy1925

don't know sh!t about IFS
Staff member
Oct 21, 2009
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That I do but can't hook my computer to my phone to send to ya. Unless someone beats me to it, I'll send you one tomorrow where I got wifi after work
 

Chevy1925

don't know sh!t about IFS
Staff member
Oct 21, 2009
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Are the last 4 digits of the os 6006 or 6xx6? ( can't remember the exact numbers, just know its 6 something something 6 lol)
 

GMC_2002_Dmax

The Still Master
I have multiple TCM files, the 2001/2002 OS will not activate the Factory OD/LO without the added momentary on switch as others have stated.

Also if you use a 2003-2005 OS in any 2001/2001 truck the "D" indicator will not light up but will still work.

If you need a copy of others just ask

:thumb:
 

whytry

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Oct 11, 2010
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I have the switch installed....trucks a 01...I put a 03 TCM file in and it did indeed drive and operate fine but the odlo did not work and the "D" did not show up..like tony said I NEED a 01 file that works in this truck do I need the original os I didn't think it mattered