Replaced Door ajar switch to rt rear door. Worked for a while now acting up again. Could it be the BCM???

I have that equipment an ran the test. This has been a real hair puller!! Have been check by to dealerships an problem not found. Time to junk it I guess. other issues as well are wrong as well. Thanks for feed back

It's times like this I wish I had the vehicle for hands-on testing .. Might not be able to solve the problem but would sure like to take a shot at it.. Hope you can figure it out.. Since you have the equipment to test it with, not much more to add... Difficult to transfer repair information over the Internet successfully. Good luck with it!