Troubleshooting › Body control system › Diagnosis
B11E612-故障诊断 · T00607660

 B11E612 - TroubleshootingB11E612-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
B11E612
Dome light output short to power supply (low side driven)顶灯输出短到电源（低边驱动）
1. Pin connection problem1.管脚连接问题
2. There is a problem with the lamp2.灯具出问题
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 front dome light wiring harness is damaged or broken.检查前排顶灯线束是否存在损坏、断裂等现象。
3. Check the front dome light wiring harness connector for damage, loose connection, etc.检查前排顶灯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 the power supply of the front dome light检查前排顶灯电源
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 front dome light harness connector BD47 and the integrated body control module harness connector BD55.断开前排顶灯线束接插件BD47和集成式车身控制模块线束接插件BD55。
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 B14 of the BD55 and ground.使用万用表测量BD55的B14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 3.去步骤3。
No否 Repair or replace the faulty wiring harness.维修或更换故障线束。
③Replace front dome light更换前排顶灯
1. Replace the front dome light with a new one and check whether the fault code and symptoms are eliminated.更换新的前排顶灯，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 4.去步骤4。
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。