Yuyangking 40a controller wiring

[fatboy72]

Please help me with the wiring of this 40a controller. I have a used yuyangking controller with most of the wires cut off.

I managed to identify the throttle, pas, power, phase with hall sensors and on/off wires. I am not able to use/find the hi-level or low-level brake wiring.

Thanks in advance.