Since I decided to do this engine swap, I've been trying to figure out how I was going to show the gear selector on the Dakota Digital gauges. When I had the original 1FZ engine and a343 transmission, it would have been easy using their kit since you can just use a linkage attached to the transmission switch.
With the 3UR and AB60, there is a bump shift that is just an electronic signal. DD offers an OBDII reader that will typically pick up that information on Chevy, some Ford, and some Dodge, but they did not have the coding for Toyota.
After speaking with Scott at DD, we decided to reverse engineer it. They sent me their OBDII reader with another module that records what the OBD port is seeing. I plugged it in, did various shifting patterns, recorded them, and sent them the files back. The data just looks like a lot of gibberish, but they were able to extract what they needed out of it.
Here is the DD OBDII module, as well as the DD recording module -
A few lines of the code copied from my OBD port... there are hundreds of pages of this for letting the engine run for about 20 seconds -
They programmed a prototype unit and shipped it off to me, and just like that, I have gear info available on different displays!!
Super grateful to have Dakota Digital work on this project, all at no cost. They really go above and beyond. I won't have to try and remember what gear I'm in now when I'm manually shifting... especially off road.