P200016 - TroubleshootingP200016-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
P200016	Electric oil pump power supply voltage is too low电动油泵供电电压过低	1. The power supply voltage is too low1.供电电压过低
		2. Poor contact of connector2.接插件接触不良

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 is "OFF", disconnect the negative terminal of the 12V battery.电源状态“OFF”,断开蓄电池负极。 2. Use a digital multimeter to measure the voltage between the positive and negative terminals of the 12V battery.用数字万用表测量蓄电池正、负极之间的电压。 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 4.去步骤4。 No否 Go to step 3.去步骤3。

③Check DCDC output voltage检查DCDC输出电压

1. The vehicle is powered on.车辆上电。 2. Use a digital multimeter to measure the voltage between the positive and negative terminals of the 12V battery.用数字万用表测量蓄电池正、负极之间的电压。 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是 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。 No否 Inspect DCDC and its lines.检修DCDC及其线路。

④Check the electric oil pump power supply line检查电动油泵供电线路

1. Check whether the power supply line of the electric oil pump is normal.检查电动油泵供电线路是否正常。 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 faulty wiring harness.维修或更换故障线束。

⑤Replace oil pump controller更换油泵控制器

1. Replace the oil pump controller with a new one and check whether the fault code and symptoms are eliminated.更换新的油泵控制器，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 oil pump controller, you need to use a diagnostic instrument to recalibrate the oil pump controller.更换油泵控制器后，需用诊断仪对油泵控制器重新标定。