B2A0F71 - TroubleshootingB2A0F71-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
B2A0F71	The front wiper MIST switch is faulty and the actuator is stuck.前雨刮MIST开关存在故障，执行器粘连	1. Press down by foreign objects1.异物压住
		2. Artificially holding down the button for a long time without releasing it2.人为长时间按住按键不松开
		3. The key switch is internally damaged and short-circuited.3.按键开关内部损坏短路

Troubleshooting steps故障诊断步骤

①Power 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 2.去步骤2。

②General inspection一般检查

1. Check whether the keys are stuck with foreign objects.检查按键是否有异物卡住。 2. Check whether the button is pressed for a long time artificially.检查按键是否人为长时间按压。 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 Remove foreign objects or avoid manually pressing the keys for a long time.清除异物或避免人为长时间压住按键。

③Replace the combination switch and clock spring assembly更换组合开关与时钟弹簧总成

1. Replace the combined switch and clock spring assembly with a new one, and check whether the fault code and symptoms are eliminated.更换新的组合开关与时钟弹簧总成，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 combination switch and clock spring assembly, you need to use a diagnostic instrument to recalibrate the combination switch and clock spring assembly.更换组合开关与时钟弹簧总成后，需用诊断仪对组合开关与时钟弹簧总成重新标定。