P0337 OBD-II故障代码：曲轴位置传感器A电路低输入

P0337代码定义

此故障代码意味着车辆的曲轴is suffering because of low voltage.

What the P0337 code means

In order for a vehicle to propel itself forward, three things are needed:

• 燃料
• Air
• 火花

在现代车辆中，第三部分也在工作：ECM（发动机控制模块）。简而言之，这款高科技设备正在工作，以测量相对于测得的空气质量必须注入多少燃料。然后，它迫使火花点燃动力中风。整个过程每秒发生数百次。

显然，需要精确的时机来一遍又一遍地进行。这就是曲轴和凸轮轴位置传感器（CMP和CKP）发挥作用的地方。

CKP执行两个非常重要的功能。一方面，它是速度传感器。ECM依靠它来计算RPM的发动机速度（每分钟转）。CKP提供的第二个重要功能是作为位置传感器。这使得ECM有可能在所谓的头顶中心（TDC）上找出圆柱体的位置。使用RPM和TDC，ECU可以操纵我们上面描述的汽车工作所需的精确功能。

当ECU无法从CKP传感器中感觉到足够的电压时，将存储P0337代码。

What causes the P0337 code?

实际上，该代码背后可能有许多原因，但最常见的是：

• CKP传感器已完全出现或退出工作
• 传感器不再正确对齐
• 起动器有缺陷或电池死亡
• 电气问题等电路

P0337代码的症状是什么？

如果您遇到以下任何内容，则最有可能在手上遇到P0337问题：

• 引擎不会启动或花费很长时间才能这样做
• Poor fuel economy
• Lack of power from the engine
• Trouble accelerating
• An engine that misfires
• 停滞的引擎

机械师如何诊断P0337代码？

Here’s how a mechanic should diagnose this problem:

• 使用OBD-II扫描仪查找已存储的代码
• Checking the sensors with an eye out for a misaligned gap
• 检查电池
• 检查短路和其他电气问题

诊断P0337代码时常见错误

A lot of mechanics will replace the sensor if it’s clearly responsible as this is easy enough to do and not incredibly expensive. At most, it will cost around $100 for this part. That being said, replacement isn’t always necessary and the sensor could be fixed with nothing more than a bit of soldering.

此外，需要检查发动机以确保其曲柄正确。检查电池也是如此。仅仅因为它的“工作”并不意味着它可以按应有的工作。

P0337代码有多严重？

This code doesn’t represent a problem that could get anyone hurt, but it could make starting your vehicle impossible. Even if you can get the engine to turn over, P0337 problems could end up costing you every time you fill up.

哪些维修可以修复P0337代码？

更有可能，一个传感器will need to be repaired. If it does need to be replaced, the good news is that it shouldn’t cost much. There could be other electrical problems that will require replacements, but again, your budget shouldn’t hurt too much.

Additional comments for consideration regarding the P0337 code

这不是应该忽略的问题，因为它不如其他常见的车辆问题那么严重。正如我们上面提到的那样，解决P0337问题通常也很有价值。

需要P0337代码的帮助吗？

YourMechanic will actually send a certified mobile mechanic to your home or place of business to assess and repair your vehicle. We’re happy to provide you a quote upfront or schedule an appointment online to learn more about our services. We also invite you to speak with a service advisor by calling us at 1-800-701-6230.