I know this is an old topic, but I have to bump it...
I have this really weird problem with the turn signals... when I signal for left or right, the front are steadily lit, and the back ones are dead (no blink, no steady lit, not even a flash of temporarily being on).
HOWEVER, when at a constant speed (say, 55-70MPH on a major road or highway), if I turn on either blinker, the suckers blink, for both back and front for both sides!
Bizarre huh? It's so frustrating that it'll work on the freeway, but if I'm at a stoplight, I have to hand signal. I attempted to fix the problem, after I noticed that the rear wires were frayed (I bought the bike second hand and noticed that the wires were frayed... I guess the frame gets low enough that the rear tire has been scraping against the wires and exposing the little metal wires). But now that everything's reconnected/resoldered/replaced, the rear ones don't turn on at all again, this time, regardless of speed -- I should mention: it did work for a little while (maybe two weeks), but now they've gone back to being completely dead again.
I'm tempted to replace the entire wiring harness, but it seems so wasteful when it's only the back turn signals that aren't working (yes, I have checked the connections, matched up ground w/ ground, blue w/ blue, etc). My break light and license plate light do work perfectly, which again, makes me want to just patch or fix the 10% of the wiring that isn't working, than throwing out 90% of perfectly fine wires.
Suggestions? Comments? Thanks in advance