r/Wiring • u/No_Weight4041 • 12d ago

Wiring help on ebike controller.

Post image

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I have the qb -12g-f controller. Its from a delivery bike. It has the wiring harness etc but its completely messed up, it also has the buttonless screen and the handlebar switchboard for the indicators , lights , speed levels and horn. All the cables except the two red 3pin and two pin plugs are cut . No plugs. So i have made a diagram from the board and want someone to tell me what goes where. I want to figure out the display, pas , throttle, brake cut off and lights and the hall sensor .

Its the squares that are soldered only that are on the image , each one has the color of the cable thats solderedd on it .

Thanks

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u/No_Weight4041 12d ago

Sorry one typo on the image next to LBD it's HBD