My rear tail light will only turn on in park mode when I press the brake leaver, but it will not turn on in Run mode. The bulb is ok since it turns on in Park. Both the front and back brake leaver switches appear to be ok as well as the light bulb. I hear a zapping sound from under the seat when I use the left/right turn signals, which work fine in Run. Can it be a relay?
Resolution Below -
Okay, I had the same problem...My 04 Suzuki DR200SE tail light /brake light is not working. Brake
lights works in park mode not in ON with engine running or not. Tail
light not in either mode.
Volt meter shows the socket is
working correctly, fuses are good. I even adjusted the pressure switch
for the rear brake application. MOM shows nothing positive to help me
trouble shoot and neither does the internet. Lots of people with same
issue, but I'm not seeing any resolution.
I'm posting the resolution as lots have had this issue, but no one has posted how they fixed it. It's the ground wire inside the tail section. Which is why the volt meter (which is grounded) shows the socket is good. You'll have the pull the tail section and note the ground wire has either broken off, or the wire has sucked up inside the insulation. You'll need to strip insulation, get to good wire and reattach it. I'd even solder it to keep it solid. Hope this helps someone else!!
Your zapping sound is a bit scary to me, however the tail lights may just need a fuse. The park light and tail/brake use the same bulb but not totaly same circuit.
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bulb has been changed, no brake light using foot or hand leaver.
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