Citroen Spacetourer wiring diagram

[pmjones79]

Hello all,
I have a 2018 Citroen Spacetourer 1.6 HDi that has a very strange issue with the wiring.
I have two issues.
The first is that the side lights (small W5W capless bulbs) do not come on regardless what position I put the lighting switches and stalk in. I have tested the bulb holder and there isn't any voltage there. No fuses have blown either. I can't say I have ever noticed them being illuminated.
The second issue is even stranger.
A bulb in the drivers sun visor had been in need of replacing for some time. I finally got around to replacing it today. When I pulled the old bulb out it was a tiny capless type. The coiled wires on the bottom unraveled as it came out. The new bulb went in but did not illuminate. I pulled it out and the same thing happened. Now all bulbs in the cab are dim. The reading lights, the lights that come on with the door, the remaining vanity (sun visor) lights, all dim.
I initially thought that the bulb wire uncoiling could have caused a short circuit but no functionality has been lost, just brightness.
No fuses have gone. No other bulbs have gone.
The reset of the interior bulbs are at the correct brightness.
I have the Haynes manual but it is the digital version and doesn't have a wiring diagram for the interior lighting.
Can anyone help?
Thank you in advance.

[GiveMeABreak]

Sorry I don't have any diagrams for this model.

[pmjones79]

Thank you for your reply.
Would you know where I could get diagrams?

[GiveMeABreak]

The dealer, but they won't provide these to you directly. You'd have to pay for a subscription to access this and that is on a timed basis, so can be expensive if you're not sure how it all works, or just get the dealer to look at it for you.