NOx Sensor Supply - Test
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| J1939 代码和说明 | CDL 代码和描述 | 注释 |
|---|---|---|
| 3216-6 后处理 #1 进口 NOx：电流高于正常值 |
3002-6 发动机排气 NOx 液位传感器：电流高于正常值 |
NOx 传感器电源电路中检测到短路。 |
| 3226-6 后处理 #1 出口 NOx：电流高于正常值 |
3609-6 后处理 #1 出口 #1 NOx 液位传感器：电流高于正常值 |
NOx 传感器电源电路中检测到短路。 |
| 3265-6 后处理 #2 出口 NOx：电流高于正常值 |
3610-6 后处理 #1 出口 #2 NOx 液位传感器：电流高于正常值 |
NOx 传感器电源电路中检测到短路。 |
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| 图 1 | g03711103 |
可能原因
- 代码
建议的措施
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| 故障诊断与排除测试步骤 | 值 | 结果 |
|---|---|---|
1. 检查代码 A. 在 Cat® ET 和 ECM 之间建立通信。 B. 将 DC 断路器转到接通位置。 C. 检查有无激活或记录的诊断故障代码。 |
代码 |
结果：NOx 传感器的 A -6 代码处于激活或记录状态。 检测到 ECM 和 NOx 传感器电源之间的导线线束中短路。 修理：修理或更换导线线束。 确认修理后故障得到排除。 返回工作。 |
如果以上步骤未解决问题，请联系当地 Cat 代理商的技术通信员（TC）。 如需进一步的帮助，您的 TC 可以通过代理商解决方案网络（DSN）与您交谈。
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