P202101 - TroubleshootingP202101-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
P202101	ITS condenser outlet refrigerant pressure sensor short circuitITS冷凝器出口冷媒压力传感器短路	1. The refrigerant pressure sensor at the condenser outlet is short-circuited.1.冷凝器出口冷媒压力传感器短路

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 condenser outlet refrigerant pressure sensor wiring harness for damage, breakage, loose connection, etc.检查冷凝器出口冷媒压力传感器线束是否存在损坏、断裂、虚接等现象。 3. Check the condenser outlet refrigerant pressure sensor wiring harness connector for loose connection or damage.检查冷凝器出口冷媒压力传感器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 the condenser outlet refrigerant pressure sensor wiring harness or connector.维修或更换冷凝器出口冷媒压力传感器线束或接插件。

②Check the condenser outlet refrigerant pressure sensor检查冷凝器出口冷媒压力传感器

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 condenser outlet refrigerant pressure sensor harness connector.断开冷凝器出口冷媒压力传感器线束接插件。 3. Use a digital multimeter to measure the resistance of the refrigerant pressure sensor at the condenser outlet.用数字万用表测量冷凝器出口冷媒压力传感器的电阻。 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 Replace the condenser outlet refrigerant pressure sensor.更换冷凝器出口冷媒压力传感器。

③Check the condenser outlet refrigerant pressure sensor circuit检查冷凝器出口冷媒压力传感器线路

1. Check whether the condenser outlet refrigerant pressure sensor circuit is short-circuited.检查冷凝器出口冷媒压力传感器线路是否短路。 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 condenser outlet refrigerant pressure sensor wiring harness.维修或更换冷凝器出口冷媒压力传感器线束。

④Replace 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 5.去步骤5。

⑤Replacing 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。