About
This course specifically provides an in-depth analysis of the high-voltage precharging system of new energy vehicles and its common faults. The content covers the working principle of the precharge circuit, BMS precharge control strategy, and detection methods of precharge resistors and relays. Participants will learn how to safely conduct high-voltage power outage verification, and master the skills of using diagnostic instruments and oscilloscopes to analyze the causes of precharge failures. The course combines multiple real maintenance cases and is designed to help front-line technicians quickly locate and solve core problems such as the vehicle's inability to enter the ready state or abnormal pre-charging.
You can also join this program via the mobile app. Go to the app