Troubleshooting › Seat › Diagnosis
B2B7011-故障诊断 · T00671083

 B2B7011 - TroubleshootingB2B7011-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
B2B7011
Rear right seat NTC temperature acquisition input short circuit to ground后右座椅NTC温度采集输入对地短路
1.NTC temperature sensor is abnormal1.NTC温度传感器异常
2.NTC temperature sensor wiring harness is abnormal2.NTC温度传感器线束异常
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 NTC temperature acquisition input harness of the rear right seat for damage, breakage, etc.检查后排右座椅NTC温度采集输入线束是否存在损坏、断裂等现象。
3. Check the NTC temperature acquisition input harness connector of the rear right seat to see if there is any loose connection or damage.检查后排右座椅NTC温度采集输入线束接插件是否存在虚接、损坏等现象。
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 NTC temperature acquisition input circuit of the rear right seat检查后排右座椅NTC温度采集输入线路
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 seat ventilation and heating module harness connector BD112 and the right seat cushion heating harness connector AS07.断开座椅通风加热模块线束接插件BD112和右座垫加热线束接插件AS07。
3. Use a digital multimeter to measure the resistance between pin 7 of the BD112 and ground.用数字万用表测量BD112的7号针脚与接地之间的电阻。
Standard resistance value: >1M标准电阻值：＞1M 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 rear right seat NTC temperature acquisition input harness.维修或更换后排右座椅NTC温度采集输入线束。
③Replace the rear right seat cushion heating更换后排右座垫加热
1. Replace the rear right seat cushion with a new one and check whether the fault code and symptoms are eliminated.更换新的后排右座垫加热，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。
④Replace seat ventilation and heating module更换座椅通风加热模块
1. Replace the seat ventilation and heating module with a new one, and check whether the fault code and symptoms are eliminated.更换新的座椅通风加热模块，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：
♦  When replacing the seat ventilation and heating module, you need to use a diagnostic tool to recalibrate the seat ventilation and heating module.更换座椅通风加热模块，需用诊断仪对座椅通风加热模块重新标定。