故障现象一辆2006款奥迪A6L 3.0轿车在做完维护后,出现仪表上的TPMS报警灯、燃油表报警灯点亮,且燃油表工作失灵的现象。故障诊断接通点火开关,仪表中央显示器TPMS报警灯点亮(图1),燃油表指针往下摆动,紧接着出现燃油表报警灯点亮的现象(图2)。TPMS(Tire Pressure Monitoring System)即轮胎压力监视系统,如果轮胎压力不正常(与预先设定值不符),会通过4个轮胎上的传感器告知胎压监控ECU,胎压监控ECU再点亮中央显示器TPMS报警灯,通知驾驶人检查轮胎气压。 Fault phenomenon A 2006 Audi A6L 3.0 sedan maintenance done, there TPMS warning lights on the instrument, fuel gauge warning lights lit, and the fuel gauge work failure phenomenon. Turn on the ignition switch fault diagnosis, central indicator TPMS alarm indicator lights lit (Figure 1), the fuel gauge pointer swing down, followed by the fuel gauge warning light lit (Figure 2). TPMS (Tire Pressure Monitoring System) is the tire pressure monitoring system. If the tire pressure is abnormal (which is different from the preset value), the tire pressure monitoring ECU will be informed by the sensors on the four tires. The tire pressure monitoring ECU will turn on the central display TPMS warning lights, notify the driver to check the tire pressure.