The left power window doesn't work左侧电动车窗都不工作

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 the left front door control module wiring harness for damage, breakage, etc.检查左前门控制模块线束是否存在损坏、断裂等现象。 3. Check the left front door control module harness connector for loose connection or damage.检查左前门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 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 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 whether the fuse IF46 in the electrical box on the instrument panel is normal.检查仪表板电器盒中保险丝IF46是否正常。 IF46：30A 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 fuse with the same specification.否>>更换相同规格保险丝。
④Check the left front door control module power circuit检查左前门控制模块电源线路
	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 left front door control module harness connector FL18.断开左前门控制模块线束接插件FL18。 3. Connect the negative terminal of the 12V battery.连接蓄电池负极。 4. Use a digital multimeter to measure the voltage between pin 7 of the FL18 and ground.用数字万用表测量FL18的7号针脚与接地之间的电压。 Standard voltage value: about 12.5V标准电压值：约12.5V 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 left front door control module power harness.否>>维修或更换左前门控制模块电源线束。
⑤Check the grounding circuit of the left front door control module检查左前门控制模块接地线路
	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 left front door control module harness connector FL17/FL18.断开左前门控制模块线束接插件FL17/FL18。 3. Use a digital multimeter to measure the resistance between pin 12 of the FL17 and ground.用数字万用表测量FL17的12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 8 of FL18 and ground.d.用数字万用表测量FL18的8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 6.是>>去步骤6。 No → Repair or replace the left front door control module grounding harness.否>>维修或更换左前门控制模块接地线束。
⑥Replace left front door control module更换左前门控制模块
1. Replace the left front door control module and check whether the fault is eliminated.更换左前门控制模块，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 left front door control module, you need to use a diagnostic tool to recalibrate the left front door control module.更换左前门控制模块后，需用诊断仪对左前门控制模块重新标定。