Hi all,

I've been having serious issues with my drivers side door and any function to do with it. Nothing on the door or associated with the door works - i.e. Power windows, Power mirrors, and locks on the drivers door do not work whatsoever. It's like the door gets no power, however during my testing I have found it does.
Only the drivers door is having problems. All other windows work using the window switch on each door. Also all other door locks lock from the key fob or boot.

So far to solve the problem I have:
- Tested drivers door window regulator on passenger door - Does work but winds strangely.
- Replaced the driver door lock module with two different used units.
- Replaced power window regulator, drivers door loom and drivers power window switches. No change.
- Checked & Swapped No.53 relay's under steering wheel. All working fine.
- Checked for power in drivers door loom with multimeter. Evidence of power at power window reg/control module, at power window switch and power mirror switch.

During my checking - I did however found that a water leak that has caused corrosion on the dash harness where it connects to the door loom. However the harness/connector is still emitting 12v's of power.

I was looking at the door loom harness and there doesn't seem to be enough wires to suggest a closed loop circuit exists for the drivers door so I'm wondering if the drivers door operates in line with a module like a BCM/BEM (Body control module) ? Maybe my BEM is stuffed and not responding to the inputs/signals from the drivers door?
Strangely Enough everything else works fine including the interior light coming on for all doors sans the drivers door and the sunroof operating perfectly fine as well.

Does anyone have any idea why despite my drivers door having power, why none of the driver door power functions & locks are responding?

Really appreciate any help. Car is unregisterred and cannot be registered until I fix this issue

Thanks!