Troubleshooting › Brake control system › Diagnosis
C11A111-故障诊断 · T00607752

 C11A111 - TroubleshootingC11A111-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
C11A111
Right actuator system failure_short circuit右执行器系统故障_短路
1. During motor operation, the current is greater than the set short-circuit threshold. (Example: short-circuit the positive and negative poles of the motor and activate the EPB switch to perform clamping or releasing operations)1.电机动作过程中电流大于设定短路阈值。（例：短接电机正负极，动作EPB开关执行夹紧或释放操作）
Troubleshooting steps故障诊断步骤
①General inspection一般检查
1. Power status 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 motor integrated right rear caliper wiring harness for damage, breakage, etc.检查电机集成式右后卡钳线束是否存在损坏、断裂等现象。
3. Check whether the motor-integrated right rear caliper wiring harness connector is damaged or has a loose connection.检查电机集成式右后卡钳线束接插件是否存在损坏、虚接等现象。
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 faulty wiring harness or connector.维修或更换故障线束或接插件。
②Power 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 3.去步骤3。
③Check the motor integrated right rear caliper wiring harness检查电机集成式右后卡钳线束
Graphic
1. Power status 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 motor-integrated right rear caliper harness connector CA05 and the electronic parking control unit harness connector BD92.断开电机集成式右后卡钳线束接插件CA05和电子驻车控制单元线束接插件BD92。
3. Use a digital multimeter to measure the resistance between pin 4/19 of the BD92 and ground.用数字万用表测量BD92的4/19号针脚与接地之间的电阻。
Standard resistance value: >1M标准电阻值：＞1M Ω
Graphic
d. Use a digital multimeter to measure the resistance between pin 1 and pin 2 of CA05.d.用数字万用表测量CA05的1号针脚与2号针脚之间的电阻。
Standard resistance value: >1M标准电阻值：＞1M Ω
Graphic
e. Connect the negative terminal of the 12V battery, and the power status is "ON".e.连接蓄电池负极，电源状态“ON”。
f. Use a digital multimeter to measure the voltage between pin 4/19 of BD92 and ground.f.用数字万用表测量BD92的4/19号针脚与接地之间的电压。
Standard voltage value: 0V标准电压值：0V
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 faulty wiring harness.维修或更换故障线束。
④Replace the motor-integrated right rear caliper更换电机集成式右后卡钳
1. Replace with a new motor-integrated right rear caliper and check whether the fault code and symptoms are eliminated.更换新的电机集成式右后卡钳，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 5.去步骤5。
⑤Replace 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。