Aspirated

Hi everyone, Was hoping for some help and advice around some issues our 2013 Citigo 5 door with start-stop has developed whilst being parked up for a few months. Known Issues - Front windscreen wipers won’t turn off - Boot release button won’t work - Locking will lock and unlock the doors multiple times when locking/unlocking using both the remote fob and the internal lock/unlock buttons - always ends up leaving the car unlocked. - Locks in all doors will also constantly “click”, locking and unlocking as soon as you turn the ignition on What I’ve tried so far - Checked all fuses by the driver footwell, none blown - Checked the fuses by the battery in the engine bay, none blown - Replaced the battery - Swapped the voltage regulator below the passenger seat with a replacement off eBay, made no difference - I’ve borrowed a diagnostic tool from a friend and the car comes up with 10 fault codes: 1 fault under “Battery Regulation” - 02071:012 - Local data bus - Electrical error in circuit 9 under “Electronic central electric” - 01365:008 Lock/unlock switch/interior locking switch - Implausible signal - 03297:008 - Driver lock cylinder contact switch - Implausible signal - 00893:008 - Release button in rear lid handle - Implausible signal - 00538:011 - Reference voltage - Open circuit - 03022:012 - Local data bus 4 - Electrical error in circuit - 03301:008 - Return message regarding driver door closing condition - Implausible signal - 03302:008 - Return message regarding passenger door closing condition - Implausible signal - 03303:008 - Return message regarding rear left door closing condition - Implausible signal - 03304:008 - Return message regarding rear right door closing condition - Implausible signal Other than the issues above, the car runs and drives fine, it’s done 74k miles. I’ve read about the indicator/wiper stalks accumulating dust/grease causing an issue so my next step will be to remove & clean or replace the stalks. Unsure what the central locking issues could be, maybe a single module of some kind (hopefully), or a bad ground/bad wiring? Would greatly appreciate any help or advice from someone who knows what they’re doing or had similar issues? Thanks in advance!