Troubleshooting › Brake control system › Diagnosis
C11D001-故障诊断 · T00607738

 C11D001 - TroubleshootingC11D001-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
C11D001
Ignition circuit inconsistency fault点火线路不一致故障
1.The CAN ignition signal is inconsistent with the hard-wired ignition signal1.CAN点火信号与硬线点火信号不一致
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 whether the electronic parking control unit wiring harness is damaged or broken.检查电子驻车控制单元线束是否存在损坏、断裂等现象。
3. Check whether the wiring harness connector of the electronic parking control unit is damaged or has a loose connection.检查电子驻车控制单元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 ignition signal hardwire检查点火信号硬线
Graphic
1. The vehicle is powered on.车辆上电。
2. Use a multimeter to measure the voltage between pin 5/24 of the BD92 and ground.使用万用表测量BD92的5/24号针脚与接地之间的电压。
Standard voltage value: about 14V标准电压值：约14V
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 Inspect the ignition signal hardwire circuit.检修点火信号硬线线路。
④Check CAN communication waveform检查CAN通讯波形
1. Power status "OFF".电源状态“OFF”。
2. Connect the oscilloscope.连接示波器。
3. Power status "ON".电源状态“ON”。
4. Use an oscilloscope to measure the waveforms of CAN-H and CAN-L.用示波器测量CAN-H和CAN-L的波形。
Are the test results normal?检查结果是否正常？
Yes是 Go to step 5.去步骤5。
No否 Check the CAN communication harness; if normal, go to step 5.检查CAN通讯线束；若正常，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。