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①General inspection (taking the left rear blind spot monitoring main sensor as an example for inspection)一般检查(以左后盲区监测主传感器为例进行检查)
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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。
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2. |
Check whether the ACANFD communication harness is damaged or broken.检查ACANFD通讯线束是否存在损坏、断裂等现象。
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3. |
Check the ACANFD communication harness connector for loose connections or damage.检查ACANFD通讯线束接插件是否存在虚接、损坏等现象。
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Are the test results normal?检查结果是否正常？
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No否 |
Repair or replace ACANFD communication harness or connector.维修或更换ACANFD通讯线束或接插件。 |
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②Check ACANFD communication waveform检查ACANFD通讯波形
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1. |
Power status "OFF".电源状态“OFF”。
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2. |
Connect the oscilloscope.连接示波器。
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3. |
Power status "ON".电源状态“ON”。
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4. |
Use an oscilloscope to measure the waveforms of ACANFD-H and ACANFD-L.用示波器测量ACANFD-H和ACANFD-L的波形。
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Are the test results normal?检查结果是否正常？
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No否 |
Check the ACANFD communication harness; if normal, go to step 3.检查ACANFD通讯线束；若正常，去步骤3。 |
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③Check other systems on the ACANFD communication harness检查ACANFD通讯线束上其他系统
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1. |
Check whether other systems on the ACANFD communication harness are normal.检查ACANFD通讯线束上其他系统是否正常。
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Are the test results normal?检查结果是否正常？
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No否 |
Troubleshoot faulty systems.检修故障系统。 |
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④Replace the left rear blind spot monitoring main sensor更换左后盲区监测主传感器
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1. |
Replace with a new left rear blind spot monitoring main sensor and check whether the fault code and symptoms are eliminated.更换新的左后盲区监测主传感器，检查故障码及症状是否排除。
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Are the test results normal?检查结果是否正常？
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Yes是 |
Fault resolved.故障排除。 |
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No否 |
Look for causes from other symptoms.从其他症状查找原因。 |
Caution:注意： |
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♦
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After replacing the main sensor for monitoring the left rear blind spot, you need to use a diagnostic instrument to recalibrate the main sensor for monitoring the left rear blind spot.更换左后盲区监测主传感器后，需用诊断仪对左后盲区监测主传感器重新标定。 |
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U007388 - TroubleshootingU007388-故障诊断