B1E4B09 - TroubleshootingB1E4B09-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
B1E4B09	Front lidar is faulty, component failure前激光雷达存在故障，部件故障	1. LiDAR power failure, temperature failure, hardware failure, etc.1.激光雷达电源故障、温度故障、硬件故障等

Troubleshooting steps故障诊断步骤

①Power on check上电检查

Repower the vehicle, use the diagnostic tool to read and clear the fault codes, and check whether the fault codes and symptoms are eliminated.车辆重新上电，使用诊断仪读取并清除故障码，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

Go to step 2.去步骤2。

②Replacing forward-facing lidar更换前向激光雷达

Replace with a new forward-facing lidar and check whether the fault code and symptoms are eliminated.更换新的前向激光雷达，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。