The vehicle controller does not work整车控制器不工作

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 whether the vehicle controller wiring harness is damaged or broken.检查整车控制器线束是否存在损坏、断裂等现象。 3. Check whether there are loose connections or damage to the vehicle controller wiring harness connector.检查整车控制器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 EF15 in the electrical box in the front compartment is normal.检查前舱电器盒中保险丝EF15是否正常。 EF15：10A
	c. Check whether the fuse IF02/IF18 in the electrical box on the instrument panel is normal.c.检查仪表板电器盒中保险丝IF02/IF18是否正常。 IF02：7.5A IF18：7.5A 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 vehicle controller 12V battery power supply检查整车控制器蓄电池电源
	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 vehicle controller harness connector FB41.断开整车控制器线束接插件FB41。 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 64/65 of FB41 and ground.用数字万用表测量FB41的64/65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 vehicle controller battery power harness.否>>维修或更换整车控制器蓄电池电源线束。
⑤Check the vehicle controller IG1 power supply检查整车控制器IG1电源
	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 vehicle controller harness connector FB41.断开整车控制器线束接插件FB41。 3. Connect the negative terminal of the 12V battery and the power status is "ON".连接蓄电池负极，电源状态“ON”。 4. Use a digital multimeter to measure the voltage between pin 24 of FB41 and ground.用数字万用表测量FB41的24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 6.是>>去步骤6。 No → Repair or replace the vehicle controller IG1 power harness.否>>维修或更换整车控制器IG1电源线束。
⑥Check the vehicle controller ACC power supply检查整车控制器ACC电源
	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 vehicle controller harness connector FB41.断开整车控制器线束接插件FB41。 3. Connect the negative terminal of the 12V battery and the power status is "ON".连接蓄电池负极，电源状态“ON”。 4. Use a digital multimeter to measure the voltage between pin 23 of FB41 and ground.用数字万用表测量FB41的23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 vehicle controller ACC power harness.否>>维修或更换整车控制器ACC电源线束。
⑦Check the vehicle controller grounding harness检查整车控制器接地线束
	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 vehicle controller harness connector FB41/FB42.断开整车控制器线束接插件FB41/FB42。 3. Use a digital multimeter to measure the resistance between pins 2/52/53/54 of FB41 and ground.用数字万用表测量FB41的2/52/53/54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 64 of FB42 and ground.d.用数字万用表测量FB42的64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 vehicle controller grounding harness.否>>维修或更换整车控制器接地线束。
⑧Replace vehicle controller更换整车控制器
1. Replace the vehicle controller and check whether the fault is eliminated.更换整车控制器，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 vehicle controller, you need to use a diagnostic tool to recalibrate the vehicle controller.更换整车控制器后，需用诊断仪对整车控制器重新标定。