Great post! We had the same problem. Wiring was fine. I tried the WD40 and then accidentally had the latch in lock mode with the door open! I could not manually unlock it. My son and I took the latch completely off after removing the wiring harnesses. We opened the latch carefully to not lose or displace springs. We found a small piece of broken plastic jamming the mechanism. We got the box back together and reinstalled the latch. All is working so far!