Troubleshooting › Driving and parking assistance systems › Diagnosis
B371415-故障诊断 · T00617072

 B371415 - TroubleshootingB371415-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
B371415
There is a fault in the GNSS antenna's open circuit, and the circuit is short-circuited or open-circuited.GNSS天线开断路存在故障，电路对电短路或开路
1. The connection harness between the GNSS antenna and the combined inertial navigation system is damaged.1.GNSS天线与组合惯导连接线束损坏
2.GNSS antenna is damaged2.GNSS天线损坏
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 whether the GPS antenna 2 wire harness is damaged or broken.检查GPS天线2线束是否存在损坏、断裂等现象。
3. Check whether there is any loose connection or damage to the GPS antenna 2 harness connector.检查GPS天线2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。
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 GPS Antenna 2 Communication Cable检查GPS天线2通信电缆
1. Check whether the GPS antenna 2 communication cable is normal.检查GPS天线2通信电缆是否正常。
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 Replace the GPS antenna 2 communication cable.更换GPS天线2通信电缆。
④Replace GPS antenna 2更换GPS天线2
1. Replace with a new GPS antenna 2 and check whether the fault code and symptoms are eliminated.更换新的GPS天线2，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 5.去步骤5。
⑤Replace the combined inertial navigation module更换组合惯性导航模块
1. Replace with a new combined inertial navigation module and check whether the fault code and symptoms are eliminated.更换新的组合惯性导航模块，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 inertial navigation module, you need to use a diagnostic instrument to recalibrate the integrated inertial navigation module.更换组合惯性导航模块后，需用诊断仪对组合惯性导航模块重新标定。