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Re: Taillight and Brakelight wont work
Take a test light ground clamp to neg side of battery or on frame. turn key on, poke wires going to lights by the base of the taillight assembly.also check with brakes engaged. if no power there, check further down at the electrical connector plug.unplug it, touch pins w/ point,if none there, check for power at fuses to those circuits.if you have power to both side of fuse, but none to connector plug for taillight, check wiring in between. if there is power to the taillight assembly, check bulb socket for rust, corrosion, flattened bulb contacts,not grounding.
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Follow the harness from the taillight to where it plugs into the main harness. The wires are usually routed along the underside of the fender and exit somwhere near the seat to plug into the main harness. There should be 3 wires that go to the taillight bulb. One is ground, one is tail light on constantly with the headlight, the other is the brakelight wire. A simple test light probe would be the tool of choice to locate these wires. tap neatly with proper solder joints into the brakelight and ground for brakelight function only on the fender side of the connector for ease of fender removal in the future. many people will use a device called a schotchlock for this type of install however it is known to cause problems with age.
While something has gone wrong to cause the light to stop working, you could spend hours trouble shooting and replacing parts or you can purchase a repair manual from: http://clymer.com/SearchResults.aspx?t=VT1100&y=2005&mid=125&mn=Honda&
Does the taillight work? If not, it's probably a grounding issue. Does the brake light not work for both foot and hand brake? If so (and the taillight works) it's probably the wire running to the brake light (might even be an unplugged connector. Check continuity from the far side of that switch to the bulb terminal.
Not sure I understand the question.Each side of plug?Anyway,black is ground and that should go to the socket.The other colors feed taillight and brakelight.They go the pins that feed bulb.You can trace them back from back of socket.Match up color for color from wireing harness under fender.Not sure what year bike you got,sometimes white is grd.
I fixed it. The LED light needs a "load equalizer" to operate properly. Instructions said nothing of needing one. I combed the internet and found the answer. I responded to FixYa by e-mail "REPLY" and informed of the fix. Thanks for your help...I'll remember your site for future needs.
The taillight should be on at all times. The brakelight should come on when the front or rear brakes are applied. Start by disconnecting the front brake light switch then the rear to see which switch is broken. Also check the bulbs. I have seen them short out internally. The filament inside the bulb break and contacts the other circuit.