ok the MODE Position Switch didn't work.

[Chopper]

Most common cause is a short in the main harness inside the front driver's side fender.

I agree....harness issues. The fact so many things went bad at once, and the intermittent(on and off) nature make me think bad ground/ short somewhere. Listen to Tone, he'd know better.

[Ldub]

Check Anita's gallery for a pic of where to start looking at the harness.