Hi, have a problem with a crown WP 2320.

The machine has a keypad fitted and I suspect this doesn't work. I have bridged the 2 wires for the key switch out which allows the machine to turn on and drive, but has no lift. Lower works though. The key pad has 4 wires coming off it so I'm not sure if one of those wires supplies power to the lift contractor. Does anyone have a wiring diagram that may be able to help me out.

Thanks a lot