I have a Ryobi RY40108 40V dc. wiring got pinched and now mower is useless. Has a HUA JIE16-12-27 motor controller. Suspect controller. Trying to find out what the wiring of the controller is? Three wire PWM with one orange wire (T1) for the motor. 40 V red/black power. The wires not known are the red/yellow/brown/black ribbon wires to the controller. Tried all resources of the factory and they are no help. Does Anyone know what the function of these ribbon wires are?