Need help 07 Saab 97x 4l60e to 4l80e swap tune

[85u]

Hello new here and new to tuning.
I am working on a Saab 97x (trailblazer) so I swapped a 4l60e to a 4l80e. I bought an adapter harness to relocate pin location from the 4l60e to 4l80e and not the relay style. I have tried serval different so swaps on the TCM. The problem is the gear selector still reads first gear no matter what and will not communicate with the ECM throw's a code u0101 lost communication with TCM. i will try to put my latest file any help would be greatly appreciated. here are two different files I have tried.

2007 saab 90lb 4l80e take 5 tune.hpt
2007 saab 90lb 4l80e take 3 tune.hpt

[blindsquirrel]

TCM OS 24235341 (2007 Suburban 2500) is confirmed by others to work on a 2007 TBSS. Sounds like a wiring problem (pinned wrong or pin backed out somewhere).

Search shows lots and lots of stuff to read: https://www.google.com/search?tbs=li....com+E67+4L80E

[ScarabEpic22]

The take 3 file is using an 08 Express Van OS (factory 08 TBSS OS) which won't work with your 07 ECM OS. As blindsquirrel mentioned, 24235341 is the right OS for 06/07 TBSS 4L80E swaps. You need to add the 80E ISS wiring and change a few pins around in the transmission wiring.

Can you post your factory 07 9-7X file as well to compare?

[85u]

The take 3 file is using an 08 Express Van OS (factory 08 TBSS OS) which won't work with your 07 ECM OS. As blindsquirrel mentioned, 24235341 is the right OS for 06/07 TBSS 4L80E swaps. You need to add the 80E ISS wiring and change a few pins around in the transmission wiring.

Can you post your factory 07 9-7X file as well to compare?

here is one of my stock files that take 5 has the same os as what you are talking about
2007saabtune2.hpt


i used the BP automotive adaptor for 4l60e to 4l80e for a 07 up.

[85u]

TCM OS 24235341 (2007 Suburban 2500) is confirmed by others to work on a 2007 TBSS. Sounds like a wiring problem (pinned wrong or pin backed out somewhere).

Search shows lots and lots of stuff to read: https://www.google.com/search?tbs=li....com+E67+4L80E

ok thank you i will look at that. i used the BP automotive adaptor harness for 07 and up.

[ScarabEpic22]

Ok great, that harness does the ISS pin breakout for you at the transmission plug. Have you made any other wiring changes at the TCM connector?

I updated your take 5 file with a TBSS TCM System segment, try this and see if it resolves the comm errors. There are a few other Transmission and Transmission Diagnostic segments floating around for this OS, but the System should resolve it.

I'm assuming you've done it already, but need to Write Entire to the TCM to change the OS the first time.

[85u]

Ok great, that harness does the ISS pin breakout for you at the transmission plug. Have you made any other wiring changes at the TCM connector?

I updated your take 5 file with a TBSS TCM System segment, try this and see if it resolves the comm errors. There are a few other Transmission and Transmission Diagnostic segments floating around for this OS, but the System should resolve it.

I'm assuming you've done it already, but need to Write Entire to the TCM to change the OS the first time.

i have not made any other changes to the harness or at the tcm i was reading about them but i assumed that harness i got would do that. should i try swamping the wires at the tcm. i going to try you tune now.

[blindsquirrel]

The Suburban OS is expecting to see the TCM connector pinned as if it were a Suburban.

[85u]

Ok great, that harness does the ISS pin breakout for you at the transmission plug. Have you made any other wiring changes at the TCM connector?

I updated your take 5 file with a TBSS TCM System segment, try this and see if it resolves the comm errors. There are a few other Transmission and Transmission Diagnostic segments floating around for this OS, but the System should resolve it.

I'm assuming you've done it already, but need to Write Entire to the TCM to change the OS the first time.

well darn i tried that and I'm still getting a u0100 and a u0101 no engine light though. i m going to check the wire pin out and make sure it is set up the same as a suburban like blindsquirrel said to check. thank you guys so much for the help any other ideas are greatly appreciated.

[blindsquirrel]

The adapter harness will complicate things a little bit. Since the pinout at the original 20-way trans connector is still Saab/60E you'll have to go by circuit description and match it to the Suburban diagrams. Drawing the whole thing out on paper to combine the two vehicles wouldn't be a bad idea.

[85u]

The adapter harness will complicate things a little bit. Since the pinout at the original 20-way trans connector is still Saab/60E you'll have to go by circuit description and match it to the Suburban diagrams. Drawing the whole thing out on paper to combine the two vehicles wouldn't be a bad idea.

Ok that makes sense. I will track both wiring diagrams down now then I'll go circuit by circuit like you said and see what's off.