Rear driver side door central locking & windows

[Stamanatic]

VCDS showed me the control module was not contactable so I bought another one on ebay, took the skin off and tested that and still the same issue. I checked the wiring harness behind the sleeve also on the drivers door, I did not check the sleeve of the rear door as that has hardly ever been opened and closed.

Rear left door works fine, any thoughts?