B1E1854 - TroubleshootingB1E1854-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
B1E1854	The right rear camera is faulty and the calibration is lost.右后相机存在故障，标定丢失	1. The camera has been replaced or moved to an installation location, or the calibration file has been tampered with.1.相机被更换或被移动安装位置、标定文件被篡改

Troubleshooting steps故障诊断步骤

①Power on check上电检查

1. 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。

②Check installation location检查安装位置

1. Check whether the installation position of the rear-facing camera on the right side meets the requirements.检查右侧后向摄像头安装位置是否符合要求。 Are the test results normal?检查结果是否正常？ Yes是 Go to step 3.去步骤3。 No否 Reinstall as required.按要求重新安装。

③Calibration check标定检查

1. Recalibrate the right rear-facing camera and check whether the fault code and symptoms are eliminated.对右侧后向摄像头重新标定，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 4.去步骤4。

④Replace the right rear-facing camera更换右侧后向摄像头

1. Replace the right rear-facing camera with a new one and check whether the fault code and symptoms are eliminated.更换新的右侧后向摄像头，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 5.去步骤5。

⑤Replacing the autonomous driving domain controller更换自动驾驶域控制器

1. Replace with a new autonomous driving domain controller and check whether the fault code and symptoms are eliminated.更换新的自动驾驶域控制器，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： ♦  After replacing the autonomous driving domain controller, you need to use a diagnostic tool to recalibrate the autonomous driving domain controller.更换自动驾驶域控制器后，需用诊断仪对自动驾驶域控制器重新标定。