Auto-dimming interior mirror not working自动防眩目内视镜不工作

①Check the wiring harness connector检查线束接插件
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 integrated body control module and the interior mirror wiring harness are damaged or broken.检查集成式车身控制模块与内视镜线束是否存在损坏、断裂等现象。 3. Check whether there are loose connections or damage to the integrated body control module and the interior mirror wiring harness connector.检查集成式车身控制模块与内视镜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 → Go to step 2.是>>去步骤2。 No → Repair or replace the faulty wiring harness or connector.否>>维修或更换故障线束或接插件。
②Check the vehicle infotainment head unit fault code检查车载智能多媒体主机故障码
1. Use the diagnostic tool to read the fault code of the infotainment head unit and check whether there is a fault in the infotainment head unit.使用诊断仪读取车载智能多媒体主机故障码，检查车载智能多媒体主机是否存在故障。 Are the test results normal?检查结果是否正常？ Yes → Go to step 3.是>>去步骤3。 No → Troubleshoot the fault of the vehicle-mounted intelligent multimedia host according to the fault code.否>>根据故障码排除车载智能多媒体主机故障。
③Check the touch control screen检查触摸控制屏
1. Check whether the touch control screen is working properly.检查触摸控制屏是否工作正常。 Are the test results normal?检查结果是否正常？ Yes → Go to step 4.是>>去步骤4。 No → Replace the touch control screen.否>>更换触摸控制屏。
④Check integrated body control module fault codes检查集成式车身控制模块故障码
1. Use the diagnostic tool to read the fault code of the integrated body control module and check whether there is a fault in the integrated body control module.使用诊断仪读取集成式车身控制模块故障码，检查集成式车身控制模块是否存在故障。 Are the test results normal?检查结果是否正常？ Yes → Go to step 5.是>>去步骤5。 No → Troubleshoot the integrated body control module fault according to the fault code.否>>根据故障码排除集成式车身控制模块故障。
⑤Check fuse检查保险丝
	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 if fuse IF23 in the electrical box on the instrument panel is normal.检查仪表板电器盒中保险丝IF23是否正常。 IF23：7.5A Are the test results normal?检查结果是否正常？ Yes → Go to step 6.是>>去步骤6。 No → Replace the fuse with the same specification.否>>更换相同规格保险丝。
⑥Check the endoscope power harness检查内视镜电源线束
	1. The power status is "ON", turning on the anti-glare endoscope function.电源状态“ON”，开启防眩目内视镜功能。 2. Use a digital multimeter to measure the voltage between pin 3 of the endoscope harness connector BD39 and ground.用数字万用表测量内视镜线束接插件BD39的3号针脚与接地之间的电压。 Standard voltage value: about 14V标准电压值：约14V Are the test results normal?检查结果是否正常？ Yes → Go to step 7.是>>去步骤7。 No → Repair or replace the endoscope power harness.否>>维修或更换内视镜电源线束。
⑦Check the endoscope grounding harness检查内视镜接地线束
	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. Disconnect the endoscope harness connector BD39.断开内视镜线束接插件BD39。 3. Use a digital multimeter to measure the resistance between pin 1 of the BD39 and ground.用数字万用表测量BD39的1号针脚与接地之间的电阻。 Standard resistance value: <1标准电阻值：＜1 Ω Are the test results normal?检查结果是否正常？ Yes → Go to step 8.是>>去步骤8。 No → Repair or replace the endoscope grounding harness.否>>维修或更换内视镜接地线束。
⑧Replace endoscope更换内视镜
1. Replace the endoscope and check whether the fault is eliminated.更换内视镜，检查故障是否排除。 Are the test results normal?检查结果是否正常？ Yes → Fault resolved.是>>故障排除。 No → Find the cause from other fault symptoms.否>>从其他故障现象查找原因。