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I disconnected rear brake switch, brake lights still on, disconnecting front isn’t so simple, I have apes with internal wiring....I took front brake lever off to see if switch was stuck and it’s clean and moves freely...could the switch be just burnt out? If it’s not the front switch it has to be a ground wire...thanks for the help
You have to isolate the switch from the harness to test for +12vdc to the switch, and out the other side when pressed. If you have +12vdc on both sides of the switch then it is bad, or you are short to ground. How long ago did you do the apes? You could have a wire inside shorting to ground, closing the circuit.
The brake switches get power from the Accessory fuse, O/W wire. When either switch is made the R/BE wire energizes the coil of the brake relay. The relay contacts make and power from the Brake/Cruise fuse O/V powers the brake light R/Y.
You ruled out the relay and the rear brake switch. Pull the Accessory fuse and see if the brake light goes out. pull the fairing and disconnect the right hand controls and check continuity between O/W and R/BE. I bet Dan was right in post 10 line 3..................................
What kind of logic is that?
No, it is not a ground wire causing the light to be on constantly.
The switch is bad.
I meant wire shorting to ground....my brother came to help me figure it out and when he was wiggling the wires going into rear brake switch the brake lights were going off and on so now I need to figure out if it needs to be cleaned, a lot of gunk on it or switch is bad or wire shorting to ground somewhere
You could have a wire inside shorting to ground, closing the circuit.
No...
A short to ground will not cause the component to have power, because the power is not reaching the component, it is taking a short cut back to the source.
That is why a short causes a breaker to trip/fuse to blow, because the short circuit does not have the resistance of the electrical component.
I have had to replace the rear brake light switch twice. The last time, the stop lights were on constantly - a short in the switch itself. I think the switch gets quite cooked by the right hand exhaust pipe.
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