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案例1新君越车ABS故障灯异常点亮故障现象一辆2012年产别克新君越轿车,行驶里程约为8万km,因ABS故障灯异常点亮而进厂检修。故障诊断接车后试车验证故障,发现仪表上ABS故障灯确实点亮。此外,在试车过程中还发现该车的电子驻车制动系统无法工作。连接GDS读取故障代码,调得的故障代码如图1所示。用GDS查阅相关数据流,发现两前轮轮速传感器的信号均不稳定。
Case 1 New LaCrosse ABS fault light is abnormally lit Fault phenomenon A 2012 Buick LaCrosse sedan has a mileage of about 80,000 km. The ABS fault light is abnormally lit and enters the factory for overhaul. Troubleshooting After the car to test the vehicle to verify the failure and found that the instrument on the ABS fault lights really lit. In addition, during the test also found that the car’s electronic parking brake system can not work. Connect the GDS to read the fault code, tune the fault code shown in Figure 1. Access to the relevant data flow with the GDS and found that the two front wheel speed sensor signals are not stable.