故障现象;有一台2013年生产的480D沃尔沃车主反映，停车后再启动显示屏出现GPS故障。无论怎么启动发动机就是没有着火的现象，这是一台2013年生产的沃尔沃，这种年龄的沃尔沃已经不存在欠费现象，为了安全起见和售后的朋友沟通了一下，让朋友在后台检查一下这台车辆是否有拖欠费用的情况，沟通确认后无欠费开始维修。

　　Fault phenomenon; A car owner of a 480D Volvo produced in 2013 reported GPS malfunction on the display screen after parking and restarting. No matter how the engine is started, there is no fire phenomenon. This is a Volvo produced in 2013. At this age, Volvo no longer has any outstanding fees. For safety reasons, I communicated with my after-sales friends and asked them to check in the background whether there are any outstanding fees for this vehicle. After confirming that there are no outstanding fees, we will start repairing it.

　　遇见GPS的情况一定要确认在不没有欠费的情况下才可以维修，否则后患无穷。到现场后根据显示屏提示的故障进行维修检查GPS相关的线路后，发现GPS电源缺失，一个蓄电池电源，也就是咱们说的长电源。

　　When encountering GPS situations, it is necessary to confirm that there are no outstanding fees before repairing, otherwise there will be endless troubles. After arriving at the scene and checking the GPS related circuits according to the displayed faults, it was found that the GPS power supply was missing, a battery power supply, which is what we call a long power supply.

　　这个GPS有两个电源，第一个是蓄电池电源，另外一个是钥匙门on电源，检查相关线路发现蓄电池电源的线断路，接上线之后GPS电源故障障排除，启动正常过十分钟之后又出现GPS故障，重新又把GPS相关的电路重新检查了一遍，发现电路是正常的，这说明GPS的内部有出问题，让司机采用应急模式工作，把gps拆下后，重新修复后安装试车正常。

　　This GPS has two power sources, the first is the battery power source, and the other is the key door on power source. After checking the relevant circuits, it was found that the battery power source wire was broken. After connecting it online, the GPS power supply fault was eliminated. After starting normally for ten minutes, the GPS fault occurred again. After rechecking the GPS related circuits, it was found that the circuits were normal, indicating that there was an internal problem with the GPS. The driver was asked to work in emergency mode, remove the GPS, repair it, and install and test it normally.

　　故障总结：沃尔沃这款挖掘机，因安装的GPS生产厂家在质量把控方面有缺陷，导致GPS内部工作不稳定，从而引起了发动机工作不正常。

　　Fault summary: The Volvo excavator had a quality control defect in the GPS manufacturer installed, which caused unstable internal operation of the GPS and resulted in abnormal engine operation.

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