plumbers crack

I am re wiring my dash,some of the rocker switches have 4 terminals for example lights on,off,bilge on,off,on and nav lights,The switches are not marked so I temped them out with battery until they lit up but there must be an easier way.I can read a schematic if anyone has it .

Wally

iTrader: (1)

try here: http://www.carlingtech.com/pdf/v_ser...ircuitdiag.pdf