Transmission Control Module (TCM) soft coding experiment (update).
04-21-2002, 10:10 PM
#1
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Transmission Control Module (TCM) soft coding experiment (update).
<b>*** WARNING/DISCLAIMER *** - Coding your Transmission Control Module outside of documented values may have undesireable effects. Coding of your Transmission Control Module is done enitrely at your own risk.</b>
I found some new valid soft coding values today!
The <u>first</u> bit of news is that the "features" <i>seem</i> to be set by a value of the "decimal" digits instead of the digits of the 2's complement value (like when coding the convenience controller).
The <u>second</u> bit of news is that the value of <b>"00032"</b> combines the two "features" that I discovered last week:
"00002" - stock coding
"00012" - [feature 1] <a href="https://forums.audiworld.com/a6/msgs/142655.phtml">"Sport Mode"</a>
"00022" - [feature 2] <a href="https://forums.audiworld.com/a6/msgs/142628.phtml">1st can be held till redline in Tip mode</a>
So we can now add:
"00032" - [feature 3] combines the behaviors of coding values of "00012" and "00022"
The <u>third</u> bit of news is that the "thousands" digit can be coded to "0" (stock) or "1". What still eludes me is what (if any) new behavior this introduces.
So far I found four valid values with the "thousand's" digit set to "1". They are: "01002", "01012", "01022" and "01032. As far as I observered, they behave just like their counterparts with the thousand's digit set to "0" which is good news... <b><u>we just need to figure out what new behavior we get</u></b>!
To summarize, here is a chart that I intend to keep up to date.
<img src="http://home.ix.netcom.com/~drhaller/Audi/TipSoftCoding.jpg">
/dan
I found some new valid soft coding values today!
The <u>first</u> bit of news is that the "features" <i>seem</i> to be set by a value of the "decimal" digits instead of the digits of the 2's complement value (like when coding the convenience controller).
The <u>second</u> bit of news is that the value of <b>"00032"</b> combines the two "features" that I discovered last week:
"00002" - stock coding
"00012" - [feature 1] <a href="https://forums.audiworld.com/a6/msgs/142655.phtml">"Sport Mode"</a>
"00022" - [feature 2] <a href="https://forums.audiworld.com/a6/msgs/142628.phtml">1st can be held till redline in Tip mode</a>
So we can now add:
"00032" - [feature 3] combines the behaviors of coding values of "00012" and "00022"
The <u>third</u> bit of news is that the "thousands" digit can be coded to "0" (stock) or "1". What still eludes me is what (if any) new behavior this introduces.
So far I found four valid values with the "thousand's" digit set to "1". They are: "01002", "01012", "01022" and "01032. As far as I observered, they behave just like their counterparts with the thousand's digit set to "0" which is good news... <b><u>we just need to figure out what new behavior we get</u></b>!
To summarize, here is a chart that I intend to keep up to date.
<img src="http://home.ix.netcom.com/~drhaller/Audi/TipSoftCoding.jpg">
/dan
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04-22-2002, 02:45 AM
#10
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very cool but how's the dealer will react he they discover what you did?
it is possible that it damage the engine/gearbox... or there is not danger for you audi?