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车型:2006年君越,配置3.0L LZD发动机。VIN:LSGWV53C86S××××××。行驶里程:137821km。故障现象:热车时风扇一直高速转不停,只有熄火后才会停。故障诊断:启动车辆,冷车时风扇正常,当温度达到正常温度后,节温器打开风扇一直常转,客户描述的问题存在。目测检查发动机外观状态:无漏油、无移位、部件连接无松动、电气插头安装牢固、无异味、无过热现象,都正常。用诊断仪检测故障,无故障码,检查风扇继电器线路(如图1所示)
Car: LaCrosse in 2006, equipped with 3.0L LZD engine. VIN: LSGWV53C86S ××××××. Mileage: 137821km. Symptoms: hot car fans have been non-stop high-speed rotation, only after the flame will stop. Troubleshooting: start the car, cold fan normal, when the temperature reaches the normal temperature, the thermostat has been turning on the fan, the customer described the problem exists. Visual inspection of the engine appearance state: No oil leakage, no shift, no loose parts connection, electrical plug installation firm, no smell, no overheating, are normal. With the diagnostic test fault, no fault code, check the fan relay circuit (shown in Figure 1)