P14E677 - TroubleshootingP14E677-故障诊断

Fault code description故障码说明

DTC故障码(DTC)	Fault code description故障码描述	Possible cause of failure可能故障原因
P14E677	Unlocking of electronic lock failed电子锁解锁失败	1. The electronic lock request is unsuccessful or the electronic lock is stuck.1.电子锁请求不成功或电子锁卡住

Troubleshooting steps故障诊断步骤

①General inspection一般检查
1. Check whether the charging equipment is installed correctly.检查充电设备安装是否正确。 Are the test results normal?检查结果是否正常？ Yes是 Go to step 2.去步骤2。 No否 Reconnect the charging device.重新连接充电设备。
②Check charging equipment检查充电设备
1. Replace the charging equipment and check whether the fault code and symptoms are eliminated.更换充电设备，检查故障码及症状是否排除。 Are the test results normal?检查结果是否正常？ Yes是 Fault resolved.故障排除。 No否 Go to step 3.去步骤3。
③Check electronic lock status 1 signal harness检查电子锁状态1信号线束
	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 FB42 and the front compartment harness connector FB05 from the charging socket harness connector.断开整车控制器线束接插件FB42和前舱线束接充电插座线束对接件FB05。 3. Use a digital multimeter to measure the resistance between pin 12 of FB42 and pin 8 of FB05.用数字万用表测量FB42的12号针脚与FB05的8号针脚之间的电阻。 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是 Go to step 4.去步骤4。 No否 Repair or replace the electronic lock status 1 signal harness.维修或更换电子锁状态1信号线束。
④Check electronic lock status 2 signal harness检查电子锁状态2信号线束
	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 and the front compartment harness connector FB05 from the charging socket harness connector.断开整车控制器线束接插件FB41和前舱线束接充电插座线束对接件FB05。 3. Use a digital multimeter to measure the resistance between pin 50 of FB41 and pin 9 of FB05.用数字万用表测量FB41的50号针脚与FB05的9号针脚之间的电阻。 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是 Go to step 5.去步骤5。 No否 Repair or replace the electronic lock status 2 signal harness.维修或更换电子锁状态2信号线束。
⑤Check the electronic lock request signal harness检查电子锁请求信号线束
	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 and the front compartment harness connector FB05 from the charging socket harness connector.断开整车控制器线束接插件FB41和前舱线束接充电插座线束对接件FB05。 3. Use a digital multimeter to measure the resistance between pin 1/3 of FB41 and pin 11/12 of FB05.用数字万用表测量FB41的1/3号针脚与FB05的11/12号针脚之间的电阻。 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是 Go to step 6.去步骤6。 No否 Repair or replace the electronic lock request signal harness.维修或更换电子锁请求信号线束。
⑥Replace charging socket更换充电插座
1. Replace the charging socket with a new one and check whether the fault code and symptoms are eliminated.更换新的充电插座，检查故障码及症状是否排除。 Are the test results normal?检查结果是否正常？ Yes是 Fault resolved.故障排除。 No否 Go to step 7.去步骤7。
⑦Replace vehicle controller更换整车控制器
1. Replace the vehicle controller with a new one and check whether the fault code and symptoms are eliminated.更换新的整车控制器，检查故障码及症状是否排除。 Are the test results normal?检查结果是否正常？ Yes是 Fault resolved.故障排除。 No否 Look for causes from other symptoms.从其他症状查找原因。   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。