一款皇冠轿车车窗升降和门锁故障诊断

Fault Diagnosis of Window Lifting and Door Lock of a TOYOTA CROWN Car

一辆皇冠轿车整车被水淹,在个体修理厂维修一段时间后,出现无法使用电子钥匙遥控与智能进入功能开闭锁、主驾驶中控开关无法控制其他3个车窗升降的故障现象。分别针对两个故障现象进行诊断分析,最终都指向一个故障点--主车身电控单元故障。更换主车身电控单元,用汽车故障诊断仪进行注册,故障排除。

A TOYOTA CROWN car was flooded. After maintenance in the individual repair shop for a period of time, the electronic key remote control and intelligent entry function could not be used to unlock and lock, and the main driver’s central control switch could not control the rise and fall of the other three windows. The two fault phenomena are diagnosed and analyzed respectively, and finally point to one fault point-the main body electronic control unit fault. Replace the main body electronic control unit, register with the vehicle fault diagnosis instrument and eliminate the fault.