T43 TCM Finding gear ratios in .bin

[Knackersjewels]

24256125-can.txt

Addresses are in that file.

Awesome. This will keep me busy for a bit. Cheers

Hey mate, PM me, I'm in the process of starting to do exactly what you're doing, using e67 with GMC Acadia OS, and 6L45e, with 6L80 tcm. Having issues with wiring and comms. If you have an ecm pinout you used, that'd help me a lot

[Hobo]

I do have a good diagram somewhere im
hoping it's still on my work laptop. I'm there on Sunday I will check for you

[Hobo]

I used the saturn outlook diagrams for mine but i realised i also had the arcadia ones. not that i think there would be any real difference

[Knackersjewels]

Thanks mate

[Hobo]

So i got around to swapping to the 6l50 tcm and tried a heap of different combinations of settings but unfortunately no luck. either it would give me no gears at all or only 4th but majorly slipping barely wanting to move. Its almost like even though the right can addresses are being sent the data might be structured differently or message timing needs to be changed or im missing something. So i refitted the 6l80 tcm for now..worst idea ever to put them inside the trans haha

Also no combination of settings i tried would stop the u0100 code and disabling it would give me no gears at all where as the corvette os is happy enough like that

[Knackersjewels]

What throttle/pedal combo are you using?

[Hobo]

I'm using the original rodeo pedal and a ve throttlebody

If a vz pedal doesn't work i would think a ve one would

[Hobo]

Possible break through..i went back to the drawing board and started looking for other T43 OSs i could try and found one i missed back when i first started searching from a 2008 CTS Caddilac v6 with a 6l50 and E69 engine ecu. Flashed that in and i have no U0100/u0101 codes and 1st to 2nd gear change is the best it has ever been. Also what made me start this thread was that i was seeing up to -20RPM "Trans Slip RPM" in 2nd/4th/5th that is now down to 0 +-1 RPM in all gears which i think is what you would expect. Pretty happy with that

Im not getting any data from 0X320 so i dont have tranny temp on my dash but thanks to tre-cools awesome info i should be able to get that turned on

[Tre-Cool]

if u use something like ghidra you will see the structure is pretty much the same in all the transmission stuff.

also if you use a vz pim module u can use that for turning reverse lights on & have cruise control too, i've not got around to wiring my switch in yet but logically it should work. unless your ecu has pins for CC stalk already.

[Hobo]

im turning on reverse lights with my little homemade stm32 can module but cruise control sounds pretty luxurious maybe i will give it a go when i get some time