C11B149 - TroubleshootingC11B149-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
C11B149	Left actuator PBC failure - internal resistance is too large左侧执行器PBC故障-内阻过大	1. During motor operation and self-test, MOSFET feedback does not match the electrical characteristics.1.电机运行与自检过程，MOSFET反馈与电气特性不符

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。

②Replacement of motor-integrated left rear caliper更换电机集成式左后卡钳

1. Replace the new motor-integrated left rear caliper and check whether the fault code and symptoms are eliminated.更换新的电机集成式左后卡钳，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 electronic parking control unit更换电子驻车控制单元

1. Replace the electronic parking control unit with a new one and check whether the fault code and symptoms are eliminated.更换新的电子驻车控制单元，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 electronic parking control unit, you need to use a diagnostic tool to recalibrate the electronic parking control unit.更换电子驻车控制单元后，需用诊断仪对电子驻车控制单元重新标定。