B1B0649 - TroubleshootingB1B0649-故障诊断

Fault code description故障码说明

DTC故障码(DTC)	Fault code description故障码描述	Possible cause of failure可能故障原因
B1B0649	Gyroscope temperature is too low陀螺仪温度过低	1. The external environment temperature is too low1.外部环境温度过低

Troubleshooting steps故障诊断步骤

①Check ambient temperature检查环境温度

Check whether the vehicle operating environment temperature is too low.检查车辆运行环境温度是否过低。

Are the test results normal?检查结果是否正常？

Yes是

Go to step 2.去步骤2。

No否

Turn on the air conditioner. If the fault persists after a period of time, go to step 2.打开空调，一段时间后若故障依然存在，去步骤2。

②Replacement of infotainment head unit更换车载智能多媒体主机

Replace with a new infotainment head unit and check whether the fault code and symptoms are eliminated.更换新的车载智能多媒体主机，检查故障码及症状是否排除。

Are the test results normal?检查结果是否正常？

Yes是

Fault resolved.故障排除。

No否

Look for causes from other symptoms.从其他症状查找原因。

Caution:注意：

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After replacing the infotainment head unit, it is necessary to use a diagnostic instrument to recalibrate the infotainment head unit.更换车载智能多媒体主机后，需用诊断仪对车载智能多媒体主机重新标定。