[DBGlos]

Hi everyone
Think my SUM has gone bad or the connections are bad - a dislodged sunroof drain hose meant water got behind dash… active chassis and bending headlight no longer work.
Would like to locate and checked connections before I go any further but where exactly is it and how do I get to it?
I’ve searched and searched and can’t find any diagrams or much else for that matter!
All help appreciated.