Headlight height adjustment is not available前大灯高度调节都不可用

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 the integrated body control module wiring harness for damage, breakage, etc.检查集成式车身控制模块线束是否存在损坏、断裂等现象。 3. Check the integrated body control module wiring harness connector for loose connections or damage.检查集成式车身控制模块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 and adjust the motor power harness检查调节电机电源线束
	1. Power status is "ON", adjust the headlight height.电源状态“ON”，调节大灯高度。 2. Use a digital multimeter to measure the voltage between pin 12 of the left front combination light harness connector FB39 and ground.用数字万用表测量左前组合灯线束接插件FB39的12号针脚与接地之间的电压。 Standard voltage value: about 12V标准电压值：约12V
	e. Use a digital multimeter to measure the voltage between pin 12 of the right front combination light harness connector FB38 and ground.e.用数字万用表测量右前组合灯线束接插件FB38的12号针脚与接地之间的电压。 Standard voltage value: about 12V标准电压值：约12V Are the test results normal?检查结果是否正常？ Yes → Go to step 6.是>>去步骤6。 No → Repair or replace the regulating motor power harness.否>>维修或更换调节电机电源线束。
⑥Check and adjust the motor grounding harness检查调节电机接地线束
	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 left front combination light harness connector FB39 and the right front combination light harness connector FB38.断开左前组合灯线束接插件FB39与右前组合灯线束接插件FB38。 3. Use a digital multimeter to measure the resistance between pin 14 of FB39 and ground.用数字万用表测量FB39的14号针脚与接地之间的电阻。 Standard resistance value: <1标准电阻值：＜1 Ω
	d. Use a digital multimeter to measure the resistance between pin 14 of FB38 and ground.d.用数字万用表测量FB38的14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 7.是>>去步骤7。 No → Repair or replace the regulating motor grounding harness.否>>维修或更换调节电机接地线束。
⑦Check and adjust motor control wiring harness检查调节电机控制线束
	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 integrated body control module harness connector FB51, the left front combination lamp harness connector FB39 and the right front combination lamp harness connector FB38.断开集成式车身控制模块线束接插件FB51、左前组合灯线束接插件FB39与右前组合灯线束接插件FB38。 3. Use a digital multimeter to measure the resistance between pin 13 of FB39 and pin 22 of FB51.用数字万用表测量FB39的13号针脚与FB51的22号针脚之间的电阻。 Standard resistance value: <1标准电阻值：＜1 Ω
	d. Use a digital multimeter to measure the resistance between pin 13 of FB38 and pin 22 of FB51.d.用数字万用表测量FB38的13号针脚与FB51的22号针脚之间的电阻。 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 adjustment motor control harness.否>>维修或更换调节电机控制线束。
⑧Replace front combination lamp更换前组合灯
1. Replace the front combination lamp and check whether the fault is eliminated.更换前组合灯，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 → Go to step 9.否>>去步骤9。
⑨Replacing the integrated body control module更换集成式车身控制模块
1. Replace the integrated body control module and check whether the fault is eliminated.更换集成式车身控制模块，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。   Caution:注意： ♦  After replacing the integrated body control module, you need to use a diagnostic tool to recalibrate the integrated body control module.更换集成式车身控制模块后，需用诊断仪对集成式车身控制模块重新标定。