U00D088 - TroubleshootingU00D088-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
U00D088	There is a fault in the CANFD wiring harness in the ADC domain and it is offline.ADC域内CANFD线束存在故障，离线	1.CAN line bus is closed1.CAN线总线关闭

Troubleshooting steps故障诊断步骤

①Power-on inspection (take the left rear blind spot monitoring main sensor as an example for inspection)上电检查(以左后盲区监测主传感器为例进行检查)

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 your surroundings检查周围环境

1. Check the surrounding environment for the presence of magnetic fields.检查周围环境是否存在磁场。 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 Drive away from the current situation.驶离当前所处环境。

③General inspection一般检查

1. Power state is "OFF", disconnect the negative terminal of the 12V battery.电源状态“OFF”，断开蓄电池负极。 2. Check whether the CANFD5 communication harness is damaged or broken.检查CANFD5通讯线束是否存在损坏、断裂等现象。 3. Check the CANFD5 communication harness connector for loose connections or damage.检查CANFD5通讯线束接插件是否存在虚接、损坏等现象。 Are the test results normal?检查结果是否正常？ Yes是 Go to step 4.去步骤4。 No否 Repair or replace faulty wiring harness or connector.维修或更换故障线束或接插件。

④Check CANFD5 communication waveform检查CANFD5通讯波形

1. Power status "OFF".电源状态“OFF”。 2. Connect the oscilloscope.连接示波器。 3. Power status "ON".电源状态“ON”。 4. Use an oscilloscope to measure the waveforms of CANFD5-H and CANFD5-L.用示波器测量CANFD5-H和CANFD5-L的波形。 Are the test results normal?检查结果是否正常？ Yes是 Go to step 5.去步骤5。 No否 Check the CANFD5 communication harness; if normal, go to step 5.检查CANFD5通讯线束；若正常，去步骤5。

⑤Check the Autopilot Domain Controller检查自动驾驶域控制器

1. Power status "OFF".电源状态“OFF”。 2. Connect the diagnostic tool.连接诊断仪。 3. Power status "ON".电源状态“ON”。 4. Use the diagnostic tool to check whether the autonomous driving domain controller is normal.使用诊断仪检查自动驾驶域控制器是否正常。 Are the test results normal?检查结果是否正常？ Yes是 Go to step 6.去步骤6。 No否 Troubleshoot the autonomous driving domain controller.检修自动驾驶域控制器。

⑥Replace the left rear blind spot monitoring main sensor更换左后盲区监测主传感器

1. Replace with a new left rear blind spot monitoring main sensor and check whether the fault code and symptoms are eliminated.更换新的左后盲区监测主传感器，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 main sensor for monitoring the left rear blind spot, you need to use a diagnostic instrument to recalibrate the main sensor for monitoring the left rear blind spot.更换左后盲区监测主传感器后，需用诊断仪对左后盲区监测主传感器重新标定。