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FZS600 Fazer / Speed sensor fusing: power / current requirements
« on: 03 May 2022, 01:58:58 pm »
I did a good amount of searching before posting. Apologies if this is old ground.
So...as we all know the speed sensor has 3 cables: live/power, signal/drive, and earth.
I'm replacing the speedometer and the OEM speed sensor live is actually out of the speedo unit itself rather than from the switched live like everything else.
I've had the speedo apart and done some testing on the circuit board. As far as I can tell it's some kind of voltage regulation that's going on, seems like this could protect the sensor and/or make it more accurate. Does anyone know the reason?
In any case I'm replacing the speedo, so the sensor will just have to connect to the switched live now. So to make sure I don't fry my speed sensor I'm planning to put a fuse in. Does anyone know what power/current it would draw? I have the electrics in bits at the minute so it's tricky for me to measure with a multimeter!
Cheers
So...as we all know the speed sensor has 3 cables: live/power, signal/drive, and earth.
I'm replacing the speedometer and the OEM speed sensor live is actually out of the speedo unit itself rather than from the switched live like everything else.
I've had the speedo apart and done some testing on the circuit board. As far as I can tell it's some kind of voltage regulation that's going on, seems like this could protect the sensor and/or make it more accurate. Does anyone know the reason?
In any case I'm replacing the speedo, so the sensor will just have to connect to the switched live now. So to make sure I don't fry my speed sensor I'm planning to put a fuse in. Does anyone know what power/current it would draw? I have the electrics in bits at the minute so it's tricky for me to measure with a multimeter!
Cheers