P200A11 - TroubleshootingP200A11-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
P200A11	ITS battery water pump three-phase line short-circuited to groundITS电池水泵三相线短路到地	1. The three-phase line of the battery water pump is short-circuited to ground.1.电池水泵三相线短路到地

Troubleshooting steps故障诊断步骤

①General inspection一般检查

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 the battery water pump wiring harness for damage, breakage, loose connection, etc.检查电池水泵线束是否存在损坏、断裂、虚接等现象。 3. Check the battery water pump wiring harness connector for loose connection or damage.检查电池水泵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是 Go to step 2.去步骤2。 No否 Repair or replace battery water pump wiring harness or connector.维修或更换电池水泵线束或接插件。

②Check the three-phase circuit of the battery water pump检查电池水泵三相线路

1. Check whether the three-phase circuit of the battery water pump is short-circuited to ground.检查电池水泵三相线路是否短路到地。 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 Repair or replace the battery water pump three-phase wiring harness.维修或更换电池水泵三相线束。

③Replace battery water pump更换电池水泵

1. Replace the battery water pump and check whether the fault code and symptoms are eliminated.更换电池水泵，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 4.去步骤4。

④Replacing the thermal management integrated module更换热管理集成模块

1. Replace the thermal management integrated module with a new one and check whether the fault code and symptoms are eliminated.更换新的热管理集成模块，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 thermal management integrated module, you need to use a diagnostic instrument to recalibrate the thermal management integrated module.更换热管理集成模块后，需用诊断仪对热管理集成模块重新标定。