Keyless...

[dangerdred]

Apologies it's a little long...Originally when I got the car the driver's door handle wasn't working for keyless entry or locking so I managed to get another in my colour (LZ9Y) and replaced the faulty one. The car has been laid up for near a year and I've only recently started driving it again but with the new handle all was good and I would only have to go near the door and it would unlock. Then this stopped working and I would have to pull the handle once and then it would unlock. Now no matter what I do the driver's door will not unlock with the keyless system although the button on the handle does still lock the car OK. When I tested, NS front and rear open keyless just by touching the handle, rear OS will not open if I touch the handle but will open if I pull the handle once, front OS will not open unless I use the remote. After starting the car yesterday and setting off I got a key icon warning on the dash and as the engine didn't cut out, I kept travelling and took the key out of my jacket pocket and put it on the centre console - the warning icon disappeared.
I did a scan last might and got faults in 13/36 modules and more than one in a few!!
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Address 05: Acc/Start Auth. Labels: 4E0-910-131.lbl
Part No SW: 4E0 910 131 HW: 4E0 907 181 A
Component: FBS AUDID3 H12 0200
Revision: 02005112 Serial number: AUX3Z0H1342405
Coding: 0412672
Shop #: WSC 02311 785 00200
VCID: 58E98B751E15DC87D17-800C

Subsystem 1 - Part No: XXXXXXXXXXX
Component: ELV XXXX

1 Fault Found:
00190 - Driver's Door Handle Touch Sensor (G415)
007 - Short to Ground
Freeze Frame:
Fault Status: 01100111
Fault Priority: 3
Fault Frequency: 14
Reset counter: 64
Mileage: 210800 km
Time Indication: 0
Date: 2019.11.08
Time: 20:03:56


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I'm replacing the driver door window this weekend as the outer pane has a crack, so while I have the door apart, what night I be looking for as regards my malfunctioning door handle or are there any tests I could do on it?