When the emergency warning light switch is pressed, the turn signals do not work (the turn switch control is normal)按下危急警告灯开关，转向灯都不工作(转向开关控制正常)

①General inspection一般检查
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 a diagnostic tool to read the fault code and check whether there is a fault.用诊断仪读取故障码，检查是否存在故障。 Check if there is a fault code?检查是否存在故障码？ Yes → Troubleshoot related faults according to the fault code.是>>根据故障码排除相关故障。 No → Go to step 2.否>>去步骤2。
②Check 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 front dome light wiring harness are damaged or broken.检查集成式车身控制模块和前排顶灯线束是否存在损坏、断裂等现象。 3. Check whether the integrated body control module and the front dome light wiring harness connector are connected or damaged.检查集成式车身控制模块和前排顶灯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 3.是>>去步骤3。 No → Repair or replace the faulty wiring harness or connector.否>>维修或更换故障线束或接插件。
③Check the front dome light grounding harness检查前排顶灯接地线束
	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 front dome light harness connector BD47.断开前排顶灯线束接插件BD47。 3. Use a digital multimeter to measure the resistance between pin 10 of the BD47 and ground.用数字万用表测量BD47的10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 4.是>>去步骤4。 No → Repair or replace the front dome light grounding harness.否>>维修或更换前排顶灯接地线束。
④Check the front dome light signal wiring harness检查前排顶灯信号线束
	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 front dome light harness connector BD47 and the integrated body control module harness connector FB51.断开前排顶灯线束接插件BD47与集成式车身控制模块线束接插件FB51。 3. Use a digital multimeter to measure the resistance between pin 3 of BD47 and pin 23 of FB51.用数字万用表测量BD47的3号针脚与FB51的23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 5.是>>去步骤5。 No → Repair or replace the front dome light signal wiring harness.否>>维修或更换前排顶灯信号线束。
⑤Replace front dome light更换前排顶灯
1. Replace the front dome light and check whether the fault is eliminated.更换前排顶灯，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 6.否>>去步骤6。
⑥Replacing 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。