故障问题:客户反映遥控无法开门、前雨刮自动刮、尾翼自动开启、尾门无法关闭。
案例解析:
1.故障现象只偶发一次,历史故障码非常多,进厂故障无法重现;
2.车辆离厂3天后故障重现,但车辆拖进厂后,故障不存在,无法重现;
3.查看VAL:
前端模块中有故障码:C11007 Control unit, calibration;
C12000 Communication with comfort CAN;
网关中有故障码: C12013 Communication with door control unit, driver;
C12013 Communication with door control unit, driver;
C1200D Communication with seat memory control unit, driver
C12016 Communication with front-end electronics control unit;
C1200E Communication with seat memory control unit, front passenger;
4.根据故障码,判断应该为舒适以N故障;
5.最终检查发现驾驶员座椅下的舒适CAN_高对座椅电机的红色供电线短路。
解决方案:舒适以N对正极短路,维修线束。