Electrical › Driving and parking assistance systems › Diagnosis
倒车雷达系统不工作 · T00611767

 Parking sensor system not working倒车雷达系统不工作

①General inspection一般检查
1. Power status "OFF".电源状态“OFF”。
2. Connect the diagnostic tool.连接诊断仪。
3. Power status "ON".电源状态“ON”。
4. Use a diagnostic tool to read the fault code and check whether there is a fault.用诊断仪读取故障码,检查是否存在故障。
Check if there is a fault code?检查是否存在故障码?
Yes → Troubleshoot related faults according to the fault code.是>>根据故障码排除相关故障。
No → Go to step 2.否>>去步骤2。
②Check the wiring harness connector检查线束接插件
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 the parking sensor wiring harness for damage, breakage, etc.检查倒车雷达传感器线束是否存在损坏、断裂等现象。
3. Check the parking sensor harness connector for loose connection or damage.检查倒车雷达传感器线束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 → Go to step 3.是>>去步骤3。
No → Repair or replace the faulty wiring harness or connector.否>>维修或更换故障线束或接插件。
③Check fuse检查保险丝
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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。
2. Check whether the fuse IF26 in the electrical box on the instrument panel is normal.检查仪表板电器盒中保险丝IF26是否正常。
IF26:7.5A
Are the test results normal?检查结果是否正常?
Yes → Go to step 4.是>>去步骤4。
No → Replace the fuse with the same specification.否>>更换相同规格保险丝。
④Check the power supply of the parking sensor controller检查倒车雷达控制器电源
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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。
2. Disconnect the parking sensor controller harness connector RB06.断开倒车雷达控制器线束接插件RB06。
3. Connect the negative terminal of the 12V battery and the power status is "ON".连接蓄电池负极,电源状态“ON”。
4. Use a digital multimeter to measure the voltage between pin 14 of the RB06 and ground.用数字万用表测量RB06的14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 → Go to step 5.是>>去步骤5。
No → Repair or replace the reversing radar controller power harness.否>>维修或更换倒车雷达控制器电源线束。
⑤Check the parking sensor controller grounding harness检查倒车雷达控制器接地线束
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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。
2. Disconnect the parking sensor controller harness connector RB06.断开倒车雷达控制器线束接插件RB06。
3. Use a digital multimeter to measure the resistance between pin 13 of the RB06 and ground.用数字万用表测量RB06的13号针脚与接地之间的电阻。
Standard resistance value: <1标准电阻值:<1 Ω
Are the test results normal?检查结果是否正常?
Yes → Go to step 6.是>>去步骤6。
No → Repair or replace the parking radar controller grounding harness.否>>维修或更换倒车雷达控制器接地线束。
⑥Replace the parking sensor controller更换倒车雷达控制器
1. Replace the parking sensor controller and check whether the fault is eliminated.更换倒车雷达控制器,检查故障是否排除。
Are the test results normal?检查结果是否正常?
Yes → Fault resolved.是>>故障排除。
No → Find the cause from other fault symptoms.否>>从其他故障现象查找原因。
  Caution:注意:
♦  After replacing the parking sensor controller, you need to use a diagnostic tool to recalibrate the parking sensor controller.更换倒车雷达控制器后,需用诊断仪对倒车雷达控制器重新标定。