After a lot of testing with different OS and segment combinations last year, I wasn't able to get my paddle shifters to work. HPTuners scanner wasn't helpful, Tech2 freaked out at my combo (though this could have just been a garbage Chinese clone...), but EFI Live would show relatively useful data. It acknowledged when I tried to use a paddle shifter, but noted the presses as invalid. I moved at the end of last year, and have been in a rental without most of my tools since then. As a result, I had paused my troubleshooting for over a year since the car was otherwise running very nicely.
Earlier today, I decided to go back to basics and check the wiring. ~ 2 years ago, I put together a spreadsheet with pinouts for the TBSS, 9-7X, Corvette, and for my steering wheel which combined all three. Right away, I noted that my +12V switched feed to the paddle shifter had no power when I probed it. I looked under the dash, and sure enough, the other end of that wire was hanging loose because I had forgotten to connect it during the course of my 3 year build...
I connected the wire to +12V switched, raced out the door to get my son from daycare without any testing at all, and it actually worked. Now, when I drop down into 3 / D4, it goes into TUTD mode and I can use paddle shifters at will. With this done, my 6L80E swap is now 100% functional. I have more fine tuning to do, but this is true for both the ECM and TCM.
I'll post later with more details. I'm also going to do a bit deeper dive into the programming side of it in the next few months. My current solution mixes Corvette and Denali OS and segments, but I'm not sure that's really necessary. I suspect that I could stick 100% Denali and be OK. 100% Corvette results in some ECM/TCM communication errors.
Tim
Earlier today, I decided to go back to basics and check the wiring. ~ 2 years ago, I put together a spreadsheet with pinouts for the TBSS, 9-7X, Corvette, and for my steering wheel which combined all three. Right away, I noted that my +12V switched feed to the paddle shifter had no power when I probed it. I looked under the dash, and sure enough, the other end of that wire was hanging loose because I had forgotten to connect it during the course of my 3 year build...
I connected the wire to +12V switched, raced out the door to get my son from daycare without any testing at all, and it actually worked. Now, when I drop down into 3 / D4, it goes into TUTD mode and I can use paddle shifters at will. With this done, my 6L80E swap is now 100% functional. I have more fine tuning to do, but this is true for both the ECM and TCM.
I'll post later with more details. I'm also going to do a bit deeper dive into the programming side of it in the next few months. My current solution mixes Corvette and Denali OS and segments, but I'm not sure that's really necessary. I suspect that I could stick 100% Denali and be OK. 100% Corvette results in some ECM/TCM communication errors.
Tim