After shifting into gear, the motor does not rotate and the vehicle cannot move (Nidec Corporation)挂挡后，电机不转，车辆无法行驶(日电产)

①Check the battery pack检查电池组箱
1. Check whether the power of the battery pack is normal.检查电池组箱电量是否正常。 2. Check whether the battery pack is working properly.检查电池组箱是否工作正常。 Are the test results normal?检查结果是否正常？ Yes → Go to step 2.是>>去步骤2。 No → Charge the vehicle or service the battery box.否>>对车辆进行充电或检修电池组箱。
②Check vehicle starting status检查车辆起步状态
1. Check whether the vehicle starts on a steep slope.检查车辆是否处于陡坡原地起步。 Are the test results normal?检查结果是否正常？ Yes → Go to step 3.是>>去步骤3。 No → Avoid starting on a steep slope.否>>避免陡坡原地起步。
③Check vehicle load检查车辆负载
1. Check whether the vehicle load is too large.检查车辆负载是否过大。 Are the test results normal?检查结果是否正常？ Yes → Go to step 4.是>>去步骤4。 No → Reduce vehicle load.否>>减轻车辆负载。
④Check the mechanical mechanism检查机械机构
1. Check the vehicle for mechanical problems.检查车辆是否发生机械故障。 2. Check if the vehicle is stuck.检查车辆是否存在卡滞。 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 related faults or eliminate stuck factors.否>>检修相关故障或排除卡滞因素。
⑤Check the wiring harness connector检查线束接插件
1. Check whether the high and low voltage wiring harness of the integrated electric drive assembly is damaged or broken.检查集成电力驱动总成高低压线束是否存在损坏、断裂等现象。 2. Check whether the high and low voltage wiring harness connectors of the integrated electric drive assembly are empty or damaged.检查集成电力驱动总成高低压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 fuse检查保险丝
1. Power status "OFF".电源状态“OFF”。 2. Check whether the integrated electric drive assembly fuse is blown.检查集成电力驱动总成保险丝是否熔断。 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 fuse with the same specification.否>>更换相同规格保险丝。
⑦Check the gateway controller fault code检查网关控制器故障码
1. Use a diagnostic tool to read the fault code of the gateway controller and check whether there is a fault in the gateway controller.使用诊断仪读取网关控制器故障码，检查网关控制器是否存在故障。 Are the test results normal?检查结果是否正常？ Yes → Go to step 8.是>>去步骤8。 No → Troubleshoot the gateway controller fault based on the fault code.否>>根据故障码排除网关控制器故障。
⑧Check the vehicle controller fault code检查整车控制器故障码
1. Use a diagnostic tool to read the fault code of the vehicle controller and check whether there is a fault in the vehicle controller.使用诊断仪读取整车控制器故障码，检查整车控制器是否存在故障。 Are the test results normal?检查结果是否正常？ Yes → Go to step 9.是>>去步骤9。 No → Troubleshoot the vehicle controller fault according to the fault code.否>>根据故障码排除整车控制器故障。
⑨Check the integrated electric drive assembly fault code检查集成电力驱动总成故障码
1. Use a diagnostic tool to read the fault code of the integrated electric drive assembly and check whether there is a fault in the integrated electric drive assembly.使用诊断仪读取集成电力驱动总成故障码，检查集成电力驱动总成是否存在故障。 Are the test results normal?检查结果是否正常？ Yes → Go to step 11.是>>去步骤11。 No → If the fault code can be read, troubleshoot according to the fault code; if communication cannot be performed, go to step 10.否>>若能读取故障码，根据故障码排除故障；若不能进行通讯，去步骤10。
⑩Check CAN communication line检查CAN通讯线路
1. Check whether the CAN communication line of the integrated electric drive assembly is normal.检查集成电力驱动总成CAN通讯线路是否正常。 Are the test results normal?检查结果是否正常？ Yes → Go to step 11.是>>去步骤11。 No → Check the CAN communication line.否>>检修CAN通讯线路。
⑪Check the integrated electric drive assembly power circuit检查集成电力驱动总成电源线路
	1. Power status "OFF".电源状态“OFF”。 2. Disconnect the integrated electric drive assembly harness connector FB58.断开集成电力驱动总成线束接插件FB58。 3. Use a digital multimeter to measure the voltage between pin 2/13 of the integrated electric drive assembly harness connector FB58 and ground.用数字万用表测量集成电力驱动总成线束接插件FB58的2/13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 12.是>>去步骤12。 No → Repair or replace the integrated electric drive assembly power harness.否>>维修或更换集成电力驱动总成电源线束。
⑫Check the integrated electric drive assembly IG power circuit检查集成电力驱动总成IG电源线路
	1. Power status "ON".电源状态“ON”。 2. Use a digital multimeter to measure the voltage between pin 14 of the integrated electric drive assembly harness connector FB58 and ground.用数字万用表测量集成电力驱动总成线束接插件FB58的14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 13.是>>去步骤13。 No → Repair or replace the integrated electric drive assembly IG power harness.否>>维修或更换集成电力驱动总成IG电源线束。
⑬Check integrated electric drive assembly ground circuit检查集成电力驱动总成接地线路
	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 integrated electric drive assembly harness connector FB58.断开集成电力驱动总成线束接插件FB58。 3. Use a digital multimeter to measure the resistance between pin 1/3 of FB58 and ground.用数字万用表测量FB58的1/3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 14.是>>去步骤14。 No → Repair or replace the integrated electric drive assembly grounding harness.否>>维修或更换集成电力驱动总成接地线束。
⑭Check the integrated electric drive assembly housing grounding circuit检查集成电力驱动总成壳体接地线路
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. Check whether the grounding circuit of the integrated electric drive assembly housing is normal.检查集成电力驱动总成壳体接地线路是否正常。 Are the test results normal?检查结果是否正常？ Yes → Go to step 15.是>>去步骤15。 No → Repair or replace the integrated electric drive assembly housing grounding harness.否>>维修或更换集成电力驱动总成壳体接地线束。
⑮Replacing the integrated electric drive assembly更换集成电力驱动总成
1. Replace the integrated electric drive assembly and check whether the fault is eliminated.更换集成电力驱动总成，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 electric drive assembly, you need to use a diagnostic tool to recalibrate the integrated electric drive assembly.更换集成电力驱动总成后，需用诊断仪对集成电力驱动总成重新标定。