Reflashing 2019 AT with 2020 code?

Any idea if this is possible?

 

Unlikely

 

Go for it and let us know how it comes out

 

Why.

 

OP bought a '19 taco, subsequently joined TW and realized he must have a bad transmission. Then OP reads some 2020 guys are happy with their AT's and wants his to act in a more linear manner, like theirs.

No other forum on planet earth that per capita, uses the word linear more often than TW.



^^Not sure if that was an accurate answer, wild guess, or simple rant...

 

Im pretty sure all ECUs are the same after the TSB put out in 2018 too

 

I suspect it's possible, I also suspect that were you to do it, there's a good chance you'd go from having a really nice truck to a really expensive paperweight.

 

I honestly don't know.
I do, however, know the very real effect this forum has on the minds of the easily influenced, aka the power of suggestion and additionally, the placebo effect. This forum is rampant with both.

 

Wait wait wait wait......there are A/T transmission issues with 3rd gen Tacomas? Hmm....maybe that's what is wrong with my Tacoma. Gotta pay closer attention next time I drive.

 

Subbed waiting for a serious answer.

 

The transmission programming in the 19’s is identical to the 20’s.

 

You know this to be fact?

 

The most recent software (that I know of) is 2020 AT
Enginecal: 8966304B8000
Trans cal: 896650410000

 

Not sure if there is actually anything to gain going from 19 to 20.

You might be happier with the Orange Virus:

https://www.tacomaworld.com/threads/ovtune-tacoma-3-5l-auto-transmission-engine-ecu-reflash.515190/

 

I'm going to go ahead and defer to the guy with the most experience in our truck's programming outside of a Toyota engineer.

 

I don’t know about a Toyota...but if a Honda has a software update that can be started using the HDS...then whatever those changes may be to the software will be updated...if it can’t be done it will just tell you the system does not need an update at this time....

 

Sheldon Brown, the chief engineer for the 2020 Tacoma, says the software has been changed. He mentions 2019 and 2020. So maybe 2019 also has the updates?
See the video at 13 minutes 30 seconds

https://www.youtube.com/watch?v=hELXIudcew0

 

From what i've read, software is the same for the 2019 and 2020.

 

Toyota has implemented the 2017 programming in the 2020s because it’s 14% more linear. This was confirmed by Mike Sweers and Sheldon. TFL has confirmed 2017 is best for towing.

 

Have you driven a equally equipped 2020 vs a 2019?