I'm not sure, so I asked Google.
"From Wikipedia, the free encyclopedia
A passthrough device is used in conjunction with a computer to reprogram vehicle control modules through the OBD-II/CANbus port.[1] Each manufacturer has their own type, but SAE International standardized the J-2534 universal requirements in 2004, requiring all manufacturers to allow vehicles sold in the United States of America and Europe to accept powertrain reprogramming through specific universal parameters."
It appears that J2534 applies to only Powertrain.
I watch "New Level Auto" on YouTube. He does a lot of reprogramming on different makes and model vehicles.
Just a stab in the dark, but maybe he can give you some ideas.