B1ED017 - TroubleshootingB1ED017-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
B1ED017	There is a fault in the millimeter wave radar power supply, and the circuit voltage is higher than the threshold.毫米波雷达电源存在故障，电路电压高于门槛值	1. The vehicle voltage is too high1.整车电压过高

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 Discharge the 12V battery.对蓄电池进行放电。 No否 Inspect DCDC and its lines.检修DCDC及其线路。

③Replace forward radar更换前向雷达

1. Replace with a new forward radar and check whether the fault code and symptoms are eliminated.更换新的前向雷达，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 forward radar, you need to use a diagnostic tool to recalibrate the forward radar.更换前向雷达后，需用诊断仪对前向雷达重新标定。