Electrical › Wiper and washing system › Diagnosis
后刮水器电机不工作 · T00611537

 Rear wiper motor not working后刮水器电机不工作

①Check 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 integrated body control module and rear wiper motor wiring harness for damage, breakage, etc.检查集成式车身控制模块和后刮水器电机线束是否存在损坏、断裂等现象。
3. Check whether the integrated body control module and rear wiper motor wiring harness connectors are connected or damaged.检查集成式车身控制模块和后刮水器电机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 2.是>>去步骤2。
No → Repair or replace the faulty wiring harness or connector.否>>维修或更换故障线束或接插件。
②Check the combination switch and clock spring assembly fault code检查组合开关与时钟弹簧总成故障码
1. Use a diagnostic tool to read the fault code of the combination switch and clock spring assembly, and check whether there is a fault in the combination switch and clock spring assembly.使用诊断仪读取组合开关与时钟弹簧总成故障码，检查组合开关与时钟弹簧总成是否存在故障。
Are the test results normal?检查结果是否正常？
Yes → Go to step 3.是>>去步骤3。
No → Troubleshoot the fault of the combined switch and clock spring assembly according to the fault code.否>>根据故障码排除组合开关与时钟弹簧总成故障。
③Check integrated body control module fault codes检查集成式车身控制模块故障码
1. Use the diagnostic tool to read the fault code of the integrated body control module and check whether there is a fault in the integrated body control module.使用诊断仪读取集成式车身控制模块故障码，检查集成式车身控制模块是否存在故障。
Are the test results normal?检查结果是否正常？
Yes → Go to step 4.是>>去步骤4。
No → Troubleshoot the integrated body control module fault according to the fault code.否>>根据故障码排除集成式车身控制模块故障。
④Check 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 if fuse IF33 in the electrical box on the instrument panel is normal.检查仪表板电器盒中保险丝IF33是否正常。
IF33：20A
Are the test results normal?检查结果是否正常？
Yes → Go to step 5.是>>去步骤5。
No → Replace the fuse with the same specification.否>>更换相同规格保险丝。
⑤Check rear wiper power supply检查后雨刮电源
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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 integrated body control module harness connector FB51.断开集成式车身控制模块线束接插件FB51。
3. Connect the negative terminal of the 12V battery.连接蓄电池负极。
4. Use a digital multimeter to measure the voltage between pin 11 of FB51 and ground.用数字万用表测量FB51的11号针脚与接地之间的电压。
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 → Go to step 6.是>>去步骤6。
No → Repair or replace the washing power wiring harness.否>>维修或更换洗涤电源线束。
⑥Check rear wiper motor power supply检查后刮水器电机电源
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1. Power status "ON" turns on the rear wiper motor.电源状态“ON”，开启后刮水器电机。
2. Use a digital multimeter to measure the voltage between pin 2 of the rear wiper motor harness connector TG12 and ground.用数字万用表测量后刮水器电机线束接插件TG12的2号针脚与接地之间的电压。
Standard voltage value: about 12V标准电压值：约12V
Are the test results normal?检查结果是否正常？
Yes → Go to step 7.是>>去步骤7。
No → Repair or replace the rear wiper motor power harness.否>>维修或更换后刮水器电机电源线束。
⑦Check rear wiper motor ground harness检查后刮水器电机接地线束
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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 rear wiper motor harness connector TG12.断开后刮水器电机线束接插件TG12。
3. Use a digital multimeter to measure the resistance between pin 3 of TG12 and ground.用数字万用表测量TG12的3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 8.是>>去步骤8。
No → Repair or replace rear wiper motor ground harness.否>>维修或更换后刮水器电机接地线束。
⑧Replace rear wiper motor更换后刮水器电机
1. Replace the rear wiper motor and check whether the fault is eliminated.更换后刮水器电机，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 → Go to step 9.否>>去步骤9。
⑨Replacing the integrated body control module更换集成式车身控制模块
1. Replace the integrated body control module and check whether the fault is eliminated.更换集成式车身控制模块，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 integrated body control module, you need to use a diagnostic tool to recalibrate the integrated body control module.更换集成式车身控制模块后，需用诊断仪对集成式车身控制模块重新标定。