Troubleshooting › Body control system › Diagnosis
B2A0809-故障诊断 · T00607602

 B2A0809 - TroubleshootingB2A0809-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
B2A0809
Driver's seat sensor failure主驾座椅传感器故障
1. Driver’s seat sensor connection problem1.主驾座椅传感器连接问题
2. The driver's seat sensor itself is faulty2.主驾座椅传感器自身故障
3. Faulty seat sensor collected by IBCM3.IBCM采集座椅传感器故障
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 driver's departure sensor wiring harness is damaged or broken.检查主驾离位传感器线束是否存在损坏、断裂等现象。
3. Check the driver's departure sensor harness connector for damage, loose connection, etc.检查主驾离位传感器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 driver departure signal harness检查主驾离位信号线束
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 body control module harness connector BD57 and the driver's departure sensor harness connector LS07.断开集成式车身控制模块线束接插件BD57和主驾离位传感器线束接插件LS07。
3. Use a multimeter to measure the resistance between pin 33 of the BD57 and pin 1 of the LS07.使用万用表测量BD57的33号针脚与LS07的1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 3.去步骤3。
No否 Repair or replace the faulty wiring harness.维修或更换故障线束。
③Replace the driver's departure sensor更换主驾离位传感器
1. Replace the driver's position sensor with a new one and check whether the fault code and symptoms are eliminated.更换新的主驾离位传感器，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。