Join Date: Apr 2005
Location: Guilford, CT, USA
Bah . . .
This is about the 5th post I've seen where the dealer said, "Oh, we think it is the motronic." Bah.
The high beam indicator light is switched on from the left multifunction switch. There is no connection with the motronic.
The signal light indicators are connected to a flasher unit, which is connected to the motronic. However, the hi beam indicator is not on that circuit, so it cannot be the flasher unit that is causing the problem for all three.
The only thing that the three circuits have in common is a common ground path.
All of the other electronics that went out, then came back on, then went out, etc., have circuits that are bundled into the same wiring harness. These have a common connector. The only connection to the motronic is to the tachometer.
The only possible common path for all of these circuits that I can see is through the neutral safety switch, which shares the same ground circuit as the three lights and has three other wires going into the LCD, which also receives power from the fused battery circuit, and provides power to the gauges. I would check the neutral safety switch connector first; it may be loose or corroded. Put dielectric grease on the connectors. If that does not do it, I'd check the wiring harness connectors, clean and grease them up, and see if the problem goes away. The fact that it is intermittent suggests a bad connection somewhere. Good luck.
'99 Canyon Red K1200 LT - Buddah Bike