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故障现象一辆2010年生产的荣威750轿车,采用18K4G1.8T涡轮增压发动机,搭载55-51SN型5速前轮驱动自动变速器,行驶里程84600km。雨天行驶时,仪表上无左右转向指示和前照灯远光指示,遥控门锁有时无法上锁和解锁,空调面板显示正常,A/C指示灯跳动,空调压缩机不工作,无制冷。4排挡杆指示灯有时不正常、无显示。故障诊断与排除对于该车的诸多故障现象和发生条件,直观上来看是某一个电子控制单元受潮或者工作异常。首先用诊断仪器进行故障自诊断,该车出现了U0001、U1001、U0087、
Fault phenomenon A 2010 production Roewe 750 sedan, 18K4G1.8T turbocharged engine, equipped with 55-51SN 5-speed front-wheel drive automatic transmission, mileage 84600km. When driving in rainy day, there is no steering indicator and headlamp high beam indicator on the instrument. Sometimes the remote control door lock can not be locked and unlocked. The air conditioner panel displays normal, the A / C indicator beats, the air conditioner compressor does not work, and no refrigeration. 4 bar gear indicator light is not normal, no display. Troubleshooting and troubleshooting For many of the car failure phenomenon and the occurrence of conditions, the intuitive point of view is that a certain electronic control unit damp or abnormal work. First of all, diagnostic equipment for fault self-diagnosis, the car appeared U0001, U1001, U0087,