客户反映:客户反映反动机灯亮,机油油位失效,助力系统提示故障
技术评估:
1. Teste脸查DM〔有大量故障码,有多个部件有断路故障,
P261A00 Additional water pump for high-temp. circuit, open circuit
P023A00 Additional water pump for low-temp. circuit, open circuit
P019700 Oil temperature sensor, signal below limit
2.查电路图发现高温附加水泵,低温高压水泵,机油传感器有共同的电源供应与共同的搭铁线。查看保险丝图发现保险丝烧断,从新按照保险后一样烧断
3.结合故障码P261000 Additional water pump for high-temp. circuit, short circuit to ground,测量高温附加水泵发现内部短路。
解决方案:高温附加水泵发现内部短路.更换高温附加水泵,试车故障解决。