Blower not working鼓风机不工作

①Check fuse检查保险丝
	1. Check whether the EF27 fuse in the electrical box in the front compartment is normal.检查前舱电器盒中EF27保险丝是否正常。 EF27：40A Are the test results normal?检查结果是否正常？ Yes → Go to step 2.是>>去步骤2。 No → Replace the fuse with the same specification.否>>更换相同规格保险丝。
②Check relay检查继电器
	1. Check whether the ER05 relay in the front compartment electrical box is working properly.检查前舱电器盒中ER05继电器是否工作正常。 Are the test results normal?检查结果是否正常？ Yes → Go to step 3.是>>去步骤3。 No → Replace the blower relay with the same specification.否>>更换相同规格鼓风机继电器。
③Check the wiring harness connector检查线束接插件
1. Check the blower wire harness for damage, breakage, etc.检查鼓风机线束是否存在损坏、断裂等现象。 2. Check the blower harness connector for loose connection or damage.检查鼓风机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 4.是>>去步骤4。 No → Repair or replace the faulty wiring harness or connector.否>>维修或更换故障线束或接插件。
④Check integrated temperature control system fault code检查集成温控系统故障码
1. Use a diagnostic tool to read the fault code of the integrated temperature control system and check whether there is a fault in the integrated temperature control system.使用诊断仪读取集成温控系统故障码，检查集成温控系统是否存在故障。 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 temperature control system fault according to the fault code.否>>根据故障码排除集成温控系统故障。
⑤Check 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 6.是>>去步骤6。 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。
⑥Check 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 7.是>>去步骤7。 No → Replace the touch control screen.否>>更换触摸控制屏。
⑦Check the speed control module power circuit检查调速模块电源线路
	1. The power status is "ON" and the blower function is turned on.电源状态“ON”，开启鼓风机功能。 2. Use a digital multimeter to measure the voltage between pin 3 of the speed control module harness connector AC08 and ground.用数字万用表测量调速模块线束接插件AC08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 8.是>>去步骤8。 No → Repair or replace the power supply harness of the speed control module.否>>维修或更换调速模块电源线束。
⑧Check the grounding circuit of the speed control module检查调速模块接地线路
	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 speed control module harness connector AC08.断开调速模块线束接插件AC08。 3. Use a digital multimeter to measure the resistance between pin 1 of the AC08 and ground.用数字万用表测量AC08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 9.是>>去步骤9。 No → Repair or replace the speed control module grounding harness.否>>维修或更换调速模块接地线束。
⑨Check the wiring between the speed control module and the blower检查调速模块与鼓风机之间的线路
	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 speed control module harness connector AC09 and the blower harness connector AC11.断开调速模块线束接插件AC09和鼓风机线束接插件AC11。 3. Use a digital multimeter to measure the resistance between pin 1/2 of AC09 and pin 2/1 of AC11.用数字万用表测量AC09的1/2号针脚与AC11的2/1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 10.是>>去步骤10。 No → Repair or replace the wiring harness between the speed control module and the blower.否>>维修或更换调速模块与鼓风机之间的线束。
⑩Replace speed control module更换调速模块
1. Replace the speed control module and check whether the fault is eliminated.更换调速模块，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 → Go to step 11.否>>去步骤11。
⑪Replace blower更换鼓风机
1. Replace the blower and check whether the fault is eliminated.更换鼓风机，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。