MID 081 - CID 1407 - FMI 11
产生此代码的情况:
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图 1 | g01818859 |
"T/C 锁定电磁阀"(低范围)示意图 |
该诊断代码与 "T/C 锁定电磁阀"(低范围)有关。 当变速箱电子控制模块(ECM)识别出单个故障有多个故障模式标识符(FMI),或 FMI 不适用于任何其他类别时,记录该诊断代码。
该诊断代码的可能原因列出如下:
- ECM 可能有内部故障。
系统响应:
诊断代码处于激活状态时,"变速箱故障报警指示灯"将闪烁。 同时,行动灯闪烁,行动报警器鸣响。 变速箱将换到空档,停车制动器将在 5 秒后使用。
Caterpillar 电子技师(ET)将无法控制电磁阀。 ET 读取的电磁阀电路电压将低于正常值,这说明电路开路。 ET 将不能使电磁阀通电。
参考有关跛行回家模式的信息,请参阅系统操作、故障诊断与排除、测试和调整, "变速箱电磁阀故障"。
测试步骤 1. 检查 ECM
- 将钥匙起动开关和蓄电池断路开关转到断开位置。
- 等待 30 秒钟。
- 将蓄电池断路开关转到接通位置。
- 将钥匙起动开关转到接通位置。
- 在进行下一步前,可充分进行自测试。
- 检查有无激活的诊断代码。
预期结果:
CID 1407 FMI 11 诊断代码不再处于激活状态。
结果:
- 是 - CID 1407 FMI 11 诊断代码不再处于激活状态。 重置 ECM 已排除诊断代码。停止
- 否 - 诊断代码 CID 1407 FMI 11 仍为激活状态。 ECM 出现故障。
修复: ECM 不太可能会出现故障。 先退出此步骤,然后重新执行此步骤。 如果没有找到该诊断代码的原因,则应更换 ECM。 请参阅系统操作、故障诊断与排除、测试和调整, "电子控制模块(ECM)- 更换"。
停止
Caterpillar Information System:
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