Smart Bluetooth system function fails智能蓝牙系统功能失效

①Check phone bluetooth检查手机蓝牙
1. Check whether the Bluetooth of the mobile phone is turned on and whether the connection with the vehicle is normal.检查手机蓝牙是否开启，与车辆连接是否正常。 Are the test results normal?检查结果是否正常？ Yes → Go to step 2.是>>去步骤2。 No → Turn on Bluetooth on your phone to connect with the vehicle.否>>开启手机蓝牙，与车辆进行连接。
②Check mobile APP检查手机APP
1. Check whether the mobile APP is the latest version.检查手机手机APP是否是最新版本。 Are the test results normal?检查结果是否正常？ Yes → Go to step 3.是>>去步骤3。 No → Upgrade the mobile APP to the latest version.否>>升级手机APP至最新版本。
③Check mobile phone bluetooth key检查手机蓝牙钥匙
1. Check whether the mobile phone Bluetooth key has expired.检查手机蓝牙钥匙秘钥是否过期。 Are the test results normal?检查结果是否正常？ Yes → Go to step 4.是>>去步骤4。 No → Update the secret key.否>>进行秘钥更新。
④Check fault codes检查故障码
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 5.否>>去步骤5。
⑤Check 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 smart Bluetooth module wiring harness is damaged or broken.检查智能蓝牙模块线束是否存在损坏、断裂等现象。 3. Check whether there are loose connections or damage to the smart Bluetooth module wiring harness connector.检查智能蓝牙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 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 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 IF49 in the electrical box on the instrument panel is normal.检查仪表板电器盒中保险丝IF49是否正常。 IF49：10A 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 smart Bluetooth module power supply检查智能蓝牙模块电源
	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 smart Bluetooth module harness connector BD43.断开智能蓝牙模块线束接插件BD43。 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 1/7 of the BD43 and ground.用数字万用表测量BD43的1/7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 8.是>>去步骤8。 No → Repair or replace the smart Bluetooth module power harness.否>>维修或更换智能蓝牙模块电源线束。
⑧Check the smart Bluetooth module grounding harness检查智能蓝牙模块接地线束
	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 smart Bluetooth module harness connector BD43.断开智能蓝牙模块线束接插件BD43。 3. Use a digital multimeter to measure the resistance between pin 6 of the BD43 and ground.用数字万用表测量BD43的6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 smart Bluetooth module grounding harness.否>>维修或更换智能蓝牙模块接地线束。
⑨Replace the smart Bluetooth module更换智能蓝牙模块
1. Replace the smart Bluetooth module and check whether the fault is eliminated.更换智能蓝牙模块，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 smart Bluetooth module, you need to use a diagnostic tool to recalibrate the smart Bluetooth module.更换智能蓝牙模块后，需用诊断仪对智能蓝牙模块重新标定。 ♦  After replacing the smart Bluetooth module, you need to re-activate the binding of the mobile phone Bluetooth key.更换智能蓝牙模块后，需对手机蓝牙钥匙重新激活绑定。