Fabia mk1 vrs interior light issue

[steprosport]

Hi there I've got an 04 plate mk1 fabia vrs I have a problem with my interior lights none of them work....... Boot/doors/glovebox and the ones in the roof lining. I've checked the bulbs and fuses all ok. I've had my diagnostic machine on the vehicle and was given the following faults.

p01330 - Convenience control unit supply voltage too low intermittent
p01331 - Driver door module supply voltage too low intermittent
p01332 - Passenger door module supply voltage too low intermittent

ive also had the car linked upto vcds it's not showing any faults for the convenience system it's just giving me the part numbers for the front window motors which I thought was abit weird.

ive also tried a second hand convenience module with identical part numbers this didn't change a thing apart from it must have been faulty as my central locking didn't work even though I coded it in.

i have cleared the faults and all I'm getting now is system ok wiring fault the dash is currently in pieces and I am losing my mind I've looked everywhere on the internet and can't seem to find an answer I've asked on briskoda and no one is getting back to me.

if anyone could please help me out I would be very greatful

thanks

steve