Troubleshooting › Body control system › Diagnosis
B11F012-故障诊断 · T00607671

 B11F012 - TroubleshootingB11F012-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
B11F012
The output of the front wiper power supply terminal is short to the power supply (low-side drive)前雨刮供电端输出短到电源（低边驱动）
1. Pin connection problem1.管脚连接问题
2. Motor abnormality2.电机异常
Troubleshooting steps故障诊断步骤
①General inspection一般检查
1. Power status "OFF".电源状态“OFF”。
2. Check whether the wiring harness related to wiper relay 2 is damaged or broken.检查刮水器继电器2相关线束是否存在损坏、断裂等现象。
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 Troubleshoot the corresponding fault.排除相应故障。
②Check wiper relay 2检查刮水器继电器2
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. Unplug wiper relay 2.拔下刮水器继电器2。
3. Check wiper relay 2.检查刮水器继电器2。
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 Replace the relay with the same specification.更换相同规格的继电器。
③Check wiper relay 2 control wiring harness检查刮水器继电器2控制线束
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. Unplug wiper relay 2 and disconnect integrated body control module harness connector FB51.拔下刮水器继电器2，断开集成式车身控制模块线束接插件FB51。
3. Connect the negative terminal of the 12V battery and the power status is "ON".连接蓄电池负极，电源状态“ON”。
4. Use a multimeter to measure the voltage between pin 25 of FB51 and ground.使用万用表测量FB51的25号针脚与地之间的电压。
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。
④Replacing the integrated body control module更换集成式车身控制模块
1. Replace with a new integrated body control module and check whether the fault code and symptoms are eliminated.更换新的集成式车身控制模块，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 integrated body control module, you need to use a diagnostic tool to recalibrate the integrated body control module.更换集成式车身控制模块后，需用诊断仪对集成式车身控制模块重新标定。