kikausa

Hi guys..my 2000 s430 won't start after heavy rains a few days ago.
The day after I thought I needed a boost..that got it started but
my windows & mirrors wouldn't open. I waited 5mins &
they responded..my dash says display error its not reading the gas
& my back lights stayed on...I disconnected the battery went under
the rear right seat & there was some water I also drained
the cowl drain & it still won't start...oh & it seems like it wants
to start...any ideas on what I should do next?...Thnx!!!