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故障现象一辆北京现代悦动轿车,搭载5挡手动变速器,配备α(G4ED)发动机,行驶里程约为2万km,车辆行驶中车速表指针始终指向0 km/h,车速表失灵。故障诊断接车后试车发现,车辆行驶中车速表指针始终指向0 km/h。使用故障检测仪检查仪表控制模块,无故障代码存储。由于该车的车速传感器为霍尔传感器,是通过变速器内的齿圈产生脉冲信号的,信号经控制模块
Symptoms A Beijing Hyundai Wyatt sedan, equipped with 5-speed manual transmission, equipped with α (G4ED) engine, mileage of about 20,000 km, the vehicle speedometer pointer always points 0 km / h, the speedometer failure. Troubleshooting After the car was unloaded, it was found that the speedometer pointer always pointed to 0 km / h. Use the fault detector to check the meter control module for fault-free code storage. As the car’s speed sensor for the Hall sensor, is generated by the gear ring gear inside the pulse signal, the signal through the control module