P202393 - TroubleshootingP202393-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
P202393	Electronic expansion valve blocked电子膨胀阀堵转	1. Wading in water or stuck with foreign objects1.涉水或有异物卡滞
		2. The electronic expansion valve is damaged2.电子膨胀阀损坏

Troubleshooting steps故障诊断步骤

①General inspection一般检查

1. Check whether there is any foreign matter stuck inside the electronic expansion valve.检查电子膨胀阀内部是否有异物卡滞。 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 Replace faulty parts.更换故障部件。

②Using a diagnostic tool to drive an electronic expansion valve使用诊断仪驱动电子膨胀阀

1. Use a diagnostic instrument to drive the electronic expansion valve alone and check whether the fault code and symptoms are eliminated.使用诊断仪单独驱动电子膨胀阀，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。

③Replace the refrigerant valve island assembly更换冷媒阀岛总成

1. Replace the refrigerant valve island assembly and check whether the fault code and symptoms are eliminated.更换冷媒阀岛总成，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 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。