MID 053 - CID 0296 - FMI 14
产生此代码的情况:
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图 1 | g02729055 |
数据链路示意图 |
当变速箱 ECM 不以正确的速率向 Advisor 发送必要的参数时,记录此诊断代码。 变速箱 ECM 生成参数的更新率不正确。 由于变速箱 ECM 没有响应 Advisor ECM 请求的参数,导致通信故障。 这种情况不是由断开的线束或故障导线导致。 断开的线束或故障导线将导致出现一个 FMI-9。
产生此诊断代码的可能原因如下:
- 变速箱 ECM 安装了不正确的软件。
- Advisor ECM 安装了不正确的软件。
- 可能安装了不兼容的软件。
- 变速箱 ECM 的保险丝可能已经熔断。
测试步骤 1. 检查发动机 ECM 和 Advisor ECM 的软件版本是否正确。
- 利用 Caterpillar 电子技师(ET)验证软件版本是否兼容。
预期结果:
Advisor ECM 和变速箱 ECM 上安装了正确版本的软件。
结果:
- 是 - 软件版本兼容。 转至测试步骤 2。
- 否 - 未安装正确的软件。
修复: 闪存相应 ECM 的合适软件。 循环钥匙开关以初始化新软件。 确保诊断代码不再为激活状态。
停止
测试步骤 2. 重新检查是否有诊断代码。
- 确保该诊断代码处于激活状态。
预期结果:
诊断代码处于非激活状态。 诊断代码指示灯处于非激活状态。
结果:
- 是 - 诊断代码指示灯和诊断代码都处于非激活状态。
修复: 清除诊断代码。
停止
- 否 - 诊断代码处于激活状态。
修复: 请在更换 ECM 之前确保安装了正确的软件。 如果软件正确,应更换 Advisor ECM。 参见测试和调整, "电子控制模块(ECM)- 更换 "。 如果刚更换了 Advisor ECM,应安装新的发动机 ECM。 请参阅所维修机器的测试和调整, "电子控制模块(ECM)- 更换"。
停止
Caterpillar Information System:
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