P200C4B - TroubleshootingP200C4B-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
P200C4B	ITS over temperature faultITS过温故障	1.ITS controller over temperature1.ITS控制器过温

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 Thermal Management Integrated Module Temperature检查热管理集成模块温度

1. Check whether the temperature of the thermal management integrated module is too high.检查热管理集成模块温度是否过高。 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 Cool the thermal management integrated module; if the fault persists, go to step 3.对热管理集成模块进行冷却；若故障依旧，去步骤3。

③Replacing 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。