B320513 - TroubleshootingB320513-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
B320513	The main antenna of the 4G module is open circuit4G模块主天线开路	1. Internal circuit failure of T-BOX1.T-BOX的内部电路故障
		The antenna harness or connector of the 2.4G module is faulty2.4G模块的天线线束或接插件故障
		3. The antenna module is damaged3.天线模块损坏

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 integrated antenna cable is damaged or broken.检查集成天线电缆是否存在损坏、断裂等现象。 3. Check whether the integrated antenna cable connector is empty or damaged.检查集成天线电缆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 Replace the cable.更换电缆。

②Replacing the integrated antenna更换集成天线

1. Replace the integrated antenna with a new one and check whether the fault code and symptoms are eliminated.更换新的集成天线，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。

③Replace T-BOX更换T-BOX

1. Replace with a new T-BOX and check whether the fault code and symptoms are eliminated.更换新的T-BOX，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 T-BOX, you need to use a diagnostic instrument to recalibrate the T-BOX.更换T-BOX后，需用诊断仪对T-BOX重新标定。