I believe I can help you out on four of the five wires, but I would check to see where the wires go....!
White on S on the key switch from the PCB, Brown on the L on the key switch from the PCB, the two Blues goes on B on the key swtich one from PCB and the other goes to the relay, Black should be GND, the red wire is not showing on the wiring diagram anywhere near the key switch.
Here is a link to the wiring diagram......
http://www.motoculture-jardin.com/forum/detail.php?forumid=3&id=20832&p=1#181247