Troubleshooting › Brake control system › Diagnosis
C11A176-故障诊断 · T00612455

 C11A176 - TroubleshootingC11A176-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
C11A176
Right parking caliper - abnormal operating characteristics右驻车卡钳 - 运行特性异常
1. Line failure1.线路故障
2. Caliper assembly failure2.卡钳总成故障
3. Control unit failure3.控制单元故障
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 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。
②Check integrated brake control unit power supply检查集成式制动控制单元电源
1. Check whether the power supply of the integrated brake control unit is normal.检查集成式制动控制单元电源是否正常。
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 Troubleshoot the corresponding fault.排除相应故障。
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 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 integrated brake control unit harness connector FB47 and the motor-integrated right rear caliper harness connector CA05.断开集成式制动控制单元线束接插件FB47和电机集成式右后卡钳线束接插件CA05。
3. Use a digital multimeter to measure the resistance between pins 16/15 of FB47 and pins 1/2 of CA05.使用数字万用表测量FB47的16/15号针脚与CA05的1/2号针脚之间的电阻。
Standard resistance value: <1标准电阻值：＜1 Ω
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。
④Check the motor-integrated right rear caliper assembly检查电机集成式右后卡钳总成
1. Replace the motor-integrated right rear caliper assembly with a new one, and check whether the fault code and symptoms are eliminated.更换新的电机集成式右后卡钳总成，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 integrated brake control unit更换集成式制动控制单元
1. Replace with a new integrated brake control unit and check whether the fault code and symptoms are eliminated.更换新的集成式制动控制单元，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 integrated brake control unit, you need to use a diagnostic tool to recalibrate the integrated brake control unit.更换集成式制动控制单元后，需用诊断仪对集成式制动控制单元重新标定。
♦  After replacing the integrated brake control unit, the brake line bleeding operation is required.更换集成式制动控制单元后，需进行制动管路排气操作。