P220016 - TroubleshootingP220016-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
P220016	KL30 input undervoltageKL30输入欠压	1. Battery undervoltage or internal components damaged1.电池欠压或内部器件损坏

Troubleshooting steps故障诊断步骤

①Power on check上电检查

1. Repower the vehicle, use the diagnostic tool to read and clear the fault codes, and check whether the fault codes and symptoms are eliminated.车辆重新上电，使用诊断仪读取并清除故障码，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 2.去步骤2。

②Check 12V battery voltage检查蓄电池电压

1. Power status "OFF".电源状态“OFF”。 2. Use a digital multimeter to measure the voltage between the positive and negative 12V batteries.用数字万用表测量蓄电池正负之间的电压。 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是 Go to step 3.去步骤3。 No否 Charge the 12V battery and replace it if necessary.对蓄电池进行充电，必要时更换蓄电池。

③Check the integrated electric drive assembly supply voltage检查集成电力驱动总成供电电压

1. Check whether the power supply voltage of the integrated electric drive assembly is normal.检查集成电力驱动总成供电电压是否正常。 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 integrated electric drive assembly power supply harness.维修或更换集成电力驱动总成供电线束。

④Replacing the integrated electric drive assembly更换集成电力驱动总成

1. Replace the integrated electric drive assembly with a new one and check whether the fault code and symptoms are eliminated.更换新的集成电力驱动总成，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 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。