Having a wiring problem with my 400ex, for some reason the headlights quit working, no high or low beam. I've looked through the wires under the hood and in the switch assembly on the handlebars and everything appears ok. Tested for voltage and with the quad running or not I was only getting a reading of 0.7 volts at the light switch? Any ideas on what might be wrong? Attached is my diagram.IMG_20160627_181316901.jpg