| Author | Message | ||
     4_pete_sake |
I am making a previous race bike street legal again... New brake light that does light up... and I believe it is ON all the time. Hard to tell honestly i guess but it sure seems bright... Two questions... 1) how can i test if it is truly ON and not just the running light...( which would lead me to believe it is a bad switch ) 2) I have searched and can't find anywhere were anyone has had this problem if the brake light is stuck on.... All fuses have been checked and operational ... some of the wiring has been replace.... ( the front brake lever switch wasn't hooked up at all.... it is now ) Any ideas are welcome.... | ||
| Akbuell |
With your handy multimeter on ohms, check each switch for continuity. Brake off - open circuit. Bake on - complete circuit. If they are both good, then the problem lies between the rear brake switch and the bulb. While it shouldn't fit, could the bulb be in 'backwards'? I have managed in the past to install a bulb where the brake filament was actually being powered by the running light circuit. | ||
| Froggy |
Check that you got the wires going to the brake light housing correct. I can't recall off the top of my head if the XB uses 3 individual connectors or a single. If you swapped the brake and running light wires you will have the same issue. | ||
| Akbuell |
My bad for not looking at the '08 XB wiring diagram first. The 'output' wire from the front brake switch runs straight to the tail light. Different from my tubers. Following up on Froggy's comment, unplug the tail light assy from the harness. The R/Y wire from the harness is the wire that powers the brake light. With the ign on and the brakes off, the voltage in that wire should be zero. If you do have 12v, then unplug both brake switches. If you now have 0v, then a switch is bad. Plug them in one at a time, that will show which one is bad. If you do have 12v with both switches unplugged, then wires are crossed somewhere. One thought, could arm from the rear brake pedal to the switch be adjusted so tight that the switch is 'on' all the time? BTW, the O/W wire runs the tail light, and should have 12v with the ign on. | ||
| 4_pete_sake |
Thanks for the thoughts guys... I have been curious about the rear brake being tightened down too much causing it to stay on.... I adjusted it back some, just curious if it's enough... I will recheck the diagram... I may simply have the wires crossed too.... Electronics are not my favorite.... But I was much more intimidated before this process, that for sure I'll try to get out to the shop this week I hope | ||
| Akbuell |
Did some more highly technical and sophisticated research on this issue. Actually, I pulled the seat off my '08TT. The R/W wire plugs into the tail light assy on the throttle side. The R/Y wire plugs into the clutch lever side. Hope this helps, Dave | ||
| 4_pete_sake |
Dave- Solid Black in the mild??? | ||
| 4_pete_sake |
Dave..... It might be the beer talking but I LOVE YOU.... Problem solved!!!!! I couldn't read the electrical diagram I guess..... You nailed it!!!!! Thank you sir!!!! Now it's road worthy at least.... Turn signals are optional here in Colorado but I do want them ...safer So we can start work on that next... Or again.... | ||
| Akbuell |
Love accepted, though I'd rather have the beer, LOL. You are very welcome. Glad the problem is solved. The best reward. Dave |
