What to Do If the Controller Is Damaged?
2 Answers
The solutions for a damaged controller are: 1. Check the power management circuit, use a multimeter to measure whether the output voltage at each point is correct, and replace any damaged components; 2. Check the interface with external functional components; 3. Check whether the main chip is damaged; 4. Check the power tube drive circuit. The controller is a command device that changes the wiring of the main circuit or control circuit and the resistance value in the circuit according to a predetermined sequence to control the motor's start, speed regulation, braking, and reverse. If the controller is damaged, the vehicle may not be able to move or may experience weak movement, leading to difficulty in starting and pushing the vehicle.
I once encountered a situation where the controller was faulty. At that time, the car drove strangely, with power surging up and down, and occasionally stalling. I guess controller issues are usually caused by circuit short circuits, unstable voltage, or aging. First, don't panic, find a safe place to pull over, and turn on the hazard lights to alert other drivers. Then check the fuse box to see if the fuse related to the controller is blown; try replacing it with a new one, but avoid touching the contacts with metal tools. If that doesn't help, inspect the connector plugs for looseness or signs of corrosion, and clean them carefully. When driving normally, try to avoid excessive bumps or exposure to rain, as these can accelerate controller damage. If you really can't figure it out, don't hesitate to go to a repair shop—they have diagnostic tools to check error codes, and professional replacement is the safest bet. Avoid disassembling things yourself to prevent damaging other components and wasting money. During regular maintenance, ask the mechanic to take a quick look at the controller's condition—prevention is better than cure.
