What is the wiring mode of the electric vehicle controller?

Thick red is the positive pole of the controller power cord, and thick black is the negative pole. Turn on the key after switching on, then measure whether the power supply voltage and the voltage of the electric door lock wire are normal, and then measure the power supply voltage of the handlebar wire red and black line about 5V, and the power supply voltage of the hall wire red and black line about 5V respectively. Don't forget to set the multimeter to DC.

Matters needing attention

Carry out live detection on the whole vehicle. First, connect all the lines and connectors, pull the multimeter to a DC voltage of 20V, first confirm that the controller has a power output of 5V, and then connect the black stylus to the ground wire of Hall, and the red stylus to the three signal wires respectively. While measuring, gently rotate the motor by hand. When Hall is normal, the multimeter will display the pulse voltage data of 0V-5V. If there is no pulse voltage when measuring a hall, the hall will be broken.