I have a 2002 525i touring that's ls swapped with a t56. When I did the swap, I wired everything so all my factory bmw gauges, abs, etc work. Everything was fine with the keyless entry before and after the swap.

Now my issue is the remote doesn't work to lock/ unlock the car or pop the hatch. Also the hatch can not be opened from the outside, I have to use the button up front by drivers kick panel. All my fuses are verified good by multimeter, my fuel door locks/ unlocks with doors as it should. I cut open the key and replaced the battery prior to realizing the issue with the hatch. I replaced the switch/ license plate bar on the hatch. The hatch motor obviously works as the button in the front still works. The rear glass functions correctly, and my soft close still works. I'm at a loss of what to look at next and can't find my Bentley manuals. Any help is greatly appreciated.