吉利EV450轿车高压不上电故障诊断

Fault Diagnosis of Geely EV450 Car Without High Voltage Power Supply

动力电池故障、低压蓄电池故障、线路故障、传感器故障、制动开关故障等均是影响吉利EV450轿车高压不上电的故障原因,车辆不上电会造成汽车不能行驶,不同的故障部位造成的故障现象不同,为解决高压不上电故障,可依照故障现象、故障代码分析、数据流分析,辅助以示波器、万用表进行测量,可快速解决其高压不上电故障,本文从吉利EV450高压不上电的故障现象着手,辅助以解码器、示波器、万用表等工具进行故障原因分析,同时按照诊断思路,辅助以案例进行分析探讨,最终得出相关结论,为维修人员提供相应案例模板。

TPower battery failure,low-voltage battery failure,line failure,sensor failure,brake switch failure,etc.are all causes of failure of Geely EV450 sedan.Failure to power on the vehicle will cause the car to be unable to drive.Failures caused by different fault parts The phenomena are different.In order to solve the high-voltage no-power failure,you can quickly solve the high-voltage no-power failure according to the fault phenomenon,fault code analysis,data flow analysis,and auxiliary measurements with an oscilloscope and multimeter.This article starts from the Geely EV450 high-voltage no-power problem.Start with the fault phenomenon,and use decoders,oscilloscopes,multimeters and other tools to assist in analyzing the cause of the fault.At the same time,according to the diagnostic ideas,case analysis and discussion are assisted,and relevant conclusions are finally drawn to provide corresponding case templates for maintenance personnel.