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If you see the P0237 code on your scanner, read on to learn more about its definition, possible causes, and common symptoms.

What Does the P0237 Code Mean?

Diagnostic trouble code (DTC) P0237 code stands for “Turbocharger/Supercharger Boost Sensor ‘A’ Circuit Low.” The powertrain control module (PCM) receives information from the boost pressure sensor (or manifold absolute pressure sensor) to see how much boost pressure is being created at any given time. If the boost pressure sensor sends an incorrect signal, then the PCM will trigger the P0237 code. 

image of a turbocharger
Once the boost pressure sensor sends an incorrect signal, the PCM will trigger the P0237 code. 

The boost pressure sensor sends a voltage to the PCM that changes depending on the amount of boost being created. When a low voltage is received by the PCM, it triggers the P0237 code.

Note: The definition of code P0237 code can be different depending on the vehicle manufacturer. Consult the appropriate repair manual or repair database for the exact code definition.

What are the Common Causes of the P0237 Code?

There are several issues that can cause the P0237 code to set. The most common causes include:

car map sensor
A damaged manifold absolute pressure sensor is one of the common causes of the P0237 code.

What are the Common Symptoms of the P0237 Code?

The symptoms for the P0237 are usually engine-related. These include the following:

How to Diagnose the P0237 Code

Different trouble codes can show the same symptoms and yet have different causes. Fixing DTCs is difficult because identifying the root cause can be tricky. This can be more difficult if you don’t have the proper knowledge and experience. If you want to get a proper diagnosis, then you should consult a trusted professional.

There are a lot of resources available online if you want to know more about how others have diagnosed their P0237 code. You can check out the video below to get an idea of what the diagnostic process might involve.

How to Fix the P0237 Code

Before you start fixing the P0237 code, you need to have an accurate diagnosis. You need to find the cause of the issue first before fixing anything because you might end up repairing or replacing a perfectly functioning part.

When it comes to OBD-II codes, there are many possible ways to fix an issue because it can have several causes. After identifying the cause of the trouble code, you can then consult reliable online auto repair resources to familiarize yourself with the repair process.

The internal components and layout of vehicles from different manufacturers can vary. This is why you should always consult your vehicle’s repair manual when it comes to troubleshooting DTCs, as the manufacturer can include important steps unique to its vehicles when it comes to troubleshooting a particular issue. Chilton repair manuals or an ALLDATA DIY subscription might be beneficial since they provide detailed information for drivers who want to do the repairs themselves.

Any information provided on this Website is for informational purposes only and is not intended to replace consultation with a professional mechanic.

File Under : OBD-II Trouble Codes Tagged With : ,
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