Hi guys, hope you're all well, not been on for a while due to new buisness start up and rr has been behaving , however after stupidly managing to leave my lights on overnight after recharging the battery for 48 hrs on reconnection I find the central locking doesn't work, although the tailgate unlocks with the fob, front wipers and washers don't work although the rear ones do. The alarm doesn't work and niether do the interior lights. I can't seem to find a blown fuse. I assume the bcu controls all these functions but could a flat battery cause it to malfunction ? Or is it protected by a fuse somewhere?