一辆奔驰560SEL轿车行驶一段路程后ABS及ASR警示灯会同时亮起。但常规制动效果却很好。因无法读取ABS故障代码,只好依据经验作常规检查。其车速传感器、开关及线路等均无异常,3个电磁阀及其继电器也正常,ECU到各传感器和执行器的线路也完好。至此故障原因虽然没有查明,但考虑到这一故障(警示灯亮)与踩不踩制动踏板无关,且又是行驶一定 ABS and ASR warning lights will light at the same time after a Mercedes 560SEL car travels for some distance. However, the normal braking effect is good. Because can not read the ABS fault code, had to make regular inspection based on experience. The speed sensor, switches and lines were normal, three solenoid valves and relays are normal, ECU to the sensors and actuators line intact. So far the cause of the malfunction though not identified, but taking into account the failure (warning lights) and step on the brake pedal has nothing to do, and is driving a certain