Rear door lock intermittent operation.

[BillDag]

2004 XJR 350.
Hav a problem with the rear offside passenger door not opening.
It was just the one door I tried various things, operating both handles together all the other worthy suggestions all without success.
I tried but could not get the door lock to release, using the key fob would operate the other 3 doors.
Sitting in the car locking and unlocking with the driver's door internal handle, the other 2 doors would operate but not the rear Offside passenger door which seemed to be completely dead, both internal and external handles working freely operating nothing.
Eventually I was resigned to having to remove the door card with the door closed, understanding this can be done but have never attempted it. Then suddenly I pulled the external door handle and the door opened ?
Before closing it remove the door card. Then operated the door countless times and it worked perfectly?

Now I'm loathe to put the door back together without finding the problem.
My thoughts are running to the micro switch that I understand is inside the lock and as several posts have pointed this can be a problem.

So my question is if a micro switch is faulty on one door would it only affect that door lock.. It seems logical to me at this point but knowing the interconnecting dependability of the systems on our cars I am unsure.

Information and views gratefully received.
Regards Bill

[JimboV8]

“So my question is if a micro switch is faulty on one door would it only affect that door lock.. It seems logical to me at this point but knowing the interconnecting dependability of the systems on our cars I am unsure.”

A faulty door microswitch will only affect that door. If it is intermittent now then it’s best to replace the lock completely.