Fleetwood Prowler Travel Trailer Switch Schematic?

First thing to check is battery connected wrong?
As far as the switch,
get out your VOM to verify my comments, but
Two center wires will be 12VDC + and -.
Two top wires should be when the switch is pushed 12VDC+ and -
Two bottom wires when switch is pushed should be just the opposite 12VDC - and +.
Basically all the switch does is reverse positive and negative leads to the motor