B1C0B71 - TroubleshootingB1C0B71-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
B1C0B71	Passenger car air-mix (blend door) motor stalled副驾混风电机堵转	1. The air-mix (blend door) servo motor on the passenger side is blocked.1.副驾侧混风伺服电机发生堵转

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 for mechanical failure of right mix actuator检查右混合执行器机械故障

1. Check whether the right mixing actuator is stuck by foreign matter.检查右混合执行器是否被异物卡滞。 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 Clean up foreign objects.清理异物。

③Check wiring harness and connectors检查线束及接插件

1. Check the right hybrid actuator wiring harness for damage, breakage, etc.检查右混合执行器线束是否存在损坏、断裂等现象。 2. Check the right hybrid actuator harness connector for loose connection or damage.检查右混合执行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 4.去步骤4。 No否 Repair or replace faulty wiring harness or connector.维修或更换故障线束或接插件。

④Replace right mix actuator更换右混合执行器

1. Replace the right mix actuator with a new one and check whether the fault code and symptoms are eliminated.更换新的右混合执行器，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 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。