push button question

[NMfishFinder]

Have a fishing buddy who is buying a 2009 z21 with a 250 merc pro xs. The prior owner took the boat out twice and just didnt use it. I know the start code for the engine is 1234 start start but my question is this. I cant get any other electronic stuff to come on, livewells, lights, fish finder ect. is there a code for master power or a master power switch somewhere?