Transmission Trouble Code?

[Hoofty]

I had a friend pull the code when my check engine light came on a week or so ago. Is is as follows:
P0740 TCC Circuit Malfunction.
I think this has something to do with the torque converter solenoid.
Where is this and how easy is this to be replaced?
Thanks

[CirrusSR22]

Does your car drive differently? If not, I'd reset the code and see if it comes back. Sometimes codes are just random transient things that aren't issues.

[Hoofty]

At times I can feel the cars torque converter slip in and out of lockup for no particular reason. Strange feeling. If this is an easy fix I would love to attempt it myself.

[b.u.ti-ful]

Here is where it is located, but I have no idea if you can get at it or not or if you should.

http://www.realoem.com/bmw/showparts...04&hg=24&fg=15