Replacing the Transmission Controller with one from a 2012
Thread Starter
Racer
Joined: Jan 2012
Posts: 314
Likes: 64
Replacing the Transmission Controller with one from a 2012
Just thinking out loud here. I wonder if it would be possible to replace the A6 transmission controller with a new one from a 2012 to get the new improved paddle shifting profile and transmission shift profile into an older 08 or 09 C6. It seems like these controllers sell for around $700 - $800. If it worked, it might be worth the cost.
I wonder if anyone knows if it would be physically possible to do or not or if a GM dealer would be willing to give this a try if the owner coughed up the bucks to pay for it.
I wonder if anyone knows if it would be physically possible to do or not or if a GM dealer would be willing to give this a try if the owner coughed up the bucks to pay for it.
Thread Starter
Racer
Joined: Jan 2012
Posts: 314
Likes: 64
I'm not interested in a tune. What I'm trying to find out is, are the controllers compatible, or did they also make internal changes to the transmission itself that would prevent them from being backward compatible.
Thread Starter
Racer
Joined: Jan 2012
Posts: 314
Likes: 64
So if there were no mechanical changes, then that begs the question, can the controller simply be upgraded to the new one to get those changes into an older car.
It sounds like it might be worth a try.
Melting Slicks
Joined: Jul 2010
Posts: 3,001
Likes: 243
From: Surprise, Az
Too much coffee this morning, right, there were no mechanical changes from what the article stated. All bets are off though if you are trying to upgrade an '08 or '09. Before spending the bucks for the upgrade, read the article. There may have been some transmission internal upgrades on the 2010's the '08's and '09's don't have. I had an '08 for a year before I bought the '12 and could immediately tell the difference the first time I drove it, but I track my cars so I may be more sensitive than the average driver.
Team Owner
Joined: Dec 2003
Posts: 57,408
Likes: 164
From: queensbury ny
The info I read in one of my Vette magazines said GM has "no plans to make it available to earlier models".It basically makes shiffting in sport/paddle mode seemless to the point where one doesn't feel the shifts.It cut down on the time it takes to shift.
Thread Starter
Racer
Joined: Jan 2012
Posts: 314
Likes: 64
Yea, but that doesn't mean we can't do it on our own.
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Former Vendor
Joined: Nov 2005
Posts: 11,792
Likes: 255
From: Ossining New York
St. Jude Donor '07-'08-'09-'10-'12-'13-'14
From what I know of it.....
From what I know of it 06-09 controllers are interchangeable.
2010, 2011, and 2012 are each different and while there might be some similarities, for now
the safe bet is to treat the later years independently and NOT try to cross mingle software
between 2010 and 2012. I'll look into it for you guys....
Even if you can just install a 2012 TCM into your 2009 Corvette, there is NO GUARANTEE
that it will work like it does in a 2012 cause there are tables and message sets
in the engine controller that permit the trans to do what it does...
MY BEST ADVICE....
Unless you have LOTS of money to spend...DON'T TRY THIS AT HOME.
Chuck CoW
2010, 2011, and 2012 are each different and while there might be some similarities, for now
the safe bet is to treat the later years independently and NOT try to cross mingle software
between 2010 and 2012. I'll look into it for you guys....
Even if you can just install a 2012 TCM into your 2009 Corvette, there is NO GUARANTEE
that it will work like it does in a 2012 cause there are tables and message sets
in the engine controller that permit the trans to do what it does...
MY BEST ADVICE....
Unless you have LOTS of money to spend...DON'T TRY THIS AT HOME.
Chuck CoW
Former Vendor
Joined: Nov 2005
Posts: 11,792
Likes: 255
From: Ossining New York
St. Jude Donor '07-'08-'09-'10-'12-'13-'14
2012 Trans Controller Module
$425
P/N 2425-7213
$425
P/N 2425-7213
Chuck CoW
Thread Starter
Racer
Joined: Jan 2012
Posts: 314
Likes: 64
Even if it cost $2,500 to get it installed and working, it would be worth it if it improved both the paddle shift function and the overall shifting of the car. And it probably could be done for a whole lot less. It seems to me that it's worth a try.
Former Vendor
Joined: Nov 2005
Posts: 11,792
Likes: 255
From: Ossining New York
St. Jude Donor '07-'08-'09-'10-'12-'13-'14
Just be careful....
I'm not so sure the "improvement" they're talking about is what your expectation is.....
I just think it's "improved" from the earlier years.
Chuck CoW
