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P0745是“压力控制电磁阀故障”的诊断故障代码（DTC）。这可能是出于多种原因而发生的，并且机械师需要诊断在您的情况下触发此代码的具体原因。我们经过认证的移动机制可以来您的家庭或办公万博亚洲客户端室执行检查引擎灯诊断$ 114.99。一旦我们能够诊断出该问题，就会为您提供建议的修复程序的前期报价，并获得20.0美元的折扣作为维修的信用。我们所有的维修都得到了我们12个月 / 12,000英里的保修。
当代码P0745出现在您的动力总成控制模块（PCM）中时，这意味着PCM没有像完成其工作一样从压力控制电磁阀中读取正确的电压降。您的PCM也可能读取正确的电读数，但是压力控制电磁阀的性能是不正确的。
The most common causes for a P0745 code include a defective valve body or pressure solenoid. Your vehicle may also suffer from poor or defective wiring on your pressure solenoid. Another cause could be a dirty transmission that inhibits and restricts your vehicle’s hydraulic passages.
与此代码相关的一些症状可能包括发光的检查引擎光，或更严重的症状，例如无法驱动的车辆，车辆燃油经济性的减少以及无法从一种齿轮转移到另一种齿轮。
When diagnosing a P0745 code, you should always record the freeze frame data and then simulate these code-setting conditions with a test drive at your vehicle’s freeze frame road speed. Start from a stopped position and accelerate slowly. Pay attention to the scan data and check if your PCM is commanding the Pressure Control Solenoid. If the PCM is commanding the Pressure Control Solenoid with a higher duty cycle and the transmission is not performing as it should, then you may have discovered the issue. Your next step is to begin doing what are called “pinpoint tests,” which in this case are continuity tests and voltage drops for the Pressure Control Solenoid. If the electrical tests are within the recommended parameters, then using a pressure gauge you should test the performance of the Pressure Control Solenoid. Remember to always检查流体的状况。It should be a clear red color, almost like a watered-down cranberry juice. If it appears burned or brown or dirty, then you will need to change your fluid immediately.
Some technicians will mistake a P0745 for a misfiring engine or a problem with your vehicle’s performance. Others have assumed that your vehicle is suffering from a driveline problem, when in fact the issue had to do with a defective valve body or solenoid.
在许多情况下，P0745非常严重，尤其是当您的车辆无法启动或车辆无法正确转移时。通常，专业技术人员应该处理P3068代码，尤其是考虑到您需要昂贵的诊断设备和广泛的知识才能自己处理维修。
如果您的车辆的液体闻起来或看起来被烧毁或灼热，则需要卸下变速箱并寻找离合器材料以及其他污垢和碎屑的存在。如果您确实在变速箱中发现污染物，则可能需要与液体冲洗一起进行完整的重建fluid replacement。In some cases, a new torque converter may need to be installed before your transmission can begin to function properly again. If you do not see any debris in your transmission pan, you should visually inspect all internal wiring and connectors and replace or repair any shorted, damaged, or corroded wires and connectors.
在某些情况下，P0745会防止您的汽车从一个齿轮上平稳地转移到另一个齿轮。另一个可能更严重的问题是从您的车辆中排放有毒气体。您可能会注意到未开枪的原始燃料液滴会影响您的呼吸。您的车辆还可能发出更高水平的一氧化碳和一氧化二氮，这两者都会导致烟雾。因此，这个问题是您要立即解决的问题。但是，请注意，解决此问题可能会变得非常复杂，并且自己进行维修可能会涉及长时间的劳动，并使用昂贵的诊断设备进行劳动。因此，重要的是在开始工作之前进行正确的研究。请随时与专业技术人员联系以获取有关此问题的建议。
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