Active air intake grille cannot be opened主动进气格栅无法打开

①General inspection一般检查
1. Check whether there are foreign objects stuck or blocked in the active air intake grille.检查主动进气格栅是否存在异物卡滞、堵塞等现象。 Are the test results normal?检查结果是否正常？ Yes → Go to step 2.是>>去步骤2。 No → Clean foreign matter.否>>清理异物。
②Check the active air intake grille mechanical components检查主动进气格栅机械部件
1. Check whether the active air intake grille blades are falling off, deformed, damaged, etc.检查主动进气格栅叶片是否存在脱落、变形、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 active air intake grille.否>>维修或更换主动进气格栅。
③Check the thermal management integrated module fault code检查热管理集成模块故障码
1. Use a diagnostic tool to read the thermal management integrated module fault code and check whether there is a fault in the thermal management integrated module.使用诊断仪读取热管理集成模块故障码，检查热管理集成模块是否存在故障。 Are the test results normal?检查结果是否正常？ Yes → Go to step 4.是>>去步骤4。 No → Troubleshoot the thermal management integrated module fault based on the fault code.否>>根据故障码排除热管理集成模块故障。
④Check fuse检查保险丝
1. Power status "OFF".电源状态“OFF”。 2. Check whether the active air intake grille fuse is blown.检查下主动进气格栅保险丝是否熔断。 Are the test results normal?检查结果是否正常？ Yes → Go to step 5.是>>去步骤5。 No → Replace the fuse with the same specification.否>>更换相同规格保险丝。
⑤Check wiring harness and connectors检查线束及接插件
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 active air intake grille wiring harness for loose connections, damage, breakage, etc.检查下主动进气格栅线束是否存在虚接、损坏、断裂等现象。 3. Check the active air intake grille harness connector to see if there is any loose connection or damage.检查下主动进气格栅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 6.是>>去步骤6。 No → Repair or replace the faulty wiring harness or connector.否>>维修或更换故障线束或接插件。
⑥Check the active air intake grille power circuit检查下主动进气格栅电源线路
	1. Power status "ON".电源状态“ON”。 2. Use a digital multimeter to measure the voltage between pin 4 of the active air intake grille connector FB26 and ground.用数字万用表测量下主动进气格栅接插件FB26的4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 active air intake grille power wiring harness.否>>维修或更换下主动进气格栅电源线束。
⑦Check the grounding circuit of the active air intake grille检查下主动进气格栅接地线路
	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 lower active air intake grille harness connector FB26.断开下主动进气格栅线束接插件FB26。 3. Use a digital multimeter to measure the resistance between pin 1 of FB26 and ground.用数字万用表测量FB26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 lower active air intake grille grounding harness.否>>维修或更换下主动进气格栅接地线束。
⑧Replace active air intake grille更换下主动进气格栅
1. Replace the lower active air intake grille with a new one and check whether the fault is eliminated.更换新的下主动进气格栅，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 thermal management integrated module更换热管理集成模块
1. Replace the thermal management integrated module with a new one and check whether the fault is eliminated.更换新的热管理集成模块，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 thermal management integrated module, you need to use a diagnostic instrument to recalibrate the thermal management integrated module.更换热管理集成模块后，需用诊断仪对热管理集成模块重新标定。