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B2E8016-故障诊断 · T00607436

 B2E8016 - TroubleshootingB2E8016-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
B2E8016
Undervoltage fault欠压故障
1. Insufficient 12V battery supply voltage1.蓄电池供电电压不足
Troubleshooting steps故障诊断步骤
①Check 12V battery voltage检查蓄电池电压
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. Use a digital multimeter to measure the voltage between the positive and negative terminals of the 12V battery.用数字万用表测量蓄电池正、负极之间的电压。
Standard voltage value: about 12.5V标准电压值：约12.5V
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 Go to step 2.去步骤2。
②Check DCDC output voltage检查DCDC输出电压
1. Power status "ON".电源状态“ON”。
2. Use a digital multimeter to measure the voltage between the positive and negative terminals of the 12V battery.用数字万用表测量蓄电池正、负极之间的电压。
Standard voltage value: about 14V标准电压值：约14V
Are the test results normal?检查结果是否正常？
Yes是 Charge the 12V battery and replace it if necessary.对蓄电池进行充电，必要时更换蓄电池。
No否 Inspect DCDC and its lines.检修DCDC及其线路。
③Check the power supply line of the smart Bluetooth module检查智能蓝牙模块供电线路
Graphic
1. Power status "ON".电源状态“ON”。
2. Use a multimeter to measure the voltage between pin 1/7 of the BD43 and ground.使用万用表测量BD43的1/7号针脚与接地之间的电压。
Standard voltage value: about 14V标准电压值：约14V
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 Check the power supply line of the smart Bluetooth module.检修智能蓝牙模块供电线路。
④Replace the smart Bluetooth module更换智能蓝牙模块
1. Replace with a new smart Bluetooth module and check whether the fault code and symptoms are eliminated.更换新的智能蓝牙模块，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 smart Bluetooth module, you need to use a diagnostic tool to recalibrate the smart Bluetooth module.更换智能蓝牙模块后，需用诊断仪对智能蓝牙模块重新标定。