2019款比亚迪e5全车无电故障诊断

Diagnosis of the all-car Power Failure of the 2019 BYD e5

一台2019款比亚迪e5纯电动汽车全车无电,遥控钥匙解锁不了,无法进入车内。根据故障现象进行分析,主要在智能遥控钥匙、蓄电池、智能遥控钥匙电源模块、CAN通讯模块等有关电路方面进行了检测诊断。通过这一系列的检查、诊断与分析,最终确定是由于无钥匙管理系统(keyless-ECU)启动子网的短路原因,导致的汽车全车无电现象,并对其进行了维修。

A 2019 BYD e5 pure electric car has no electricity,and the remote control key cannot unlock the car and the driver cannot enter the car.According to the analysis of the fault phenomenon,the main remote control key,battery,intelligent remote key power module,CAN communication module and other related circuits were tested and diagnosed.Through this series of inspection,diagnosis and analysis,it was fi nally determined that the keyless-ECU,keyless-ECU,startup subnet caused the short circuit of the vehicle,resulting in no electricity in the entire vehicle and needed repairing.