P0528 code — how to fix error fast

Among so many OBD2 codes, those like P0528 are the worst kind due to their potential impact on your car’s engine. If this happens to you in your car, it takes knowing a bit more about the P0528 code meaning and taking the necessary steps to remove it and prevent it.

In this guide, we’ll give you all the pointers on diagnosing the proper cause of the code, along with giving you some pieces of advice to fix the code and prevent the issue from persisting.

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What does the P0528 code mean?

The P0528 code stands for “Engine Oil Pressure Sensor/Switch Circuit High Voltage.” This means that the signal being sent from the engine oil pressure sensor to the engine control module is too high.

This can cause a number of issues with your vehicle, including reduced engine performance, decreased fuel economy, and potential engine damage. The symptoms of this code include an illuminated check engine light, reduced power, engine stalling, and hard starting.

What causes the P0528 code?

There are all sorts of reasons that could affect the code to illuminate on the scanner tool, and it takes being aware of all these to properly fix it. Here’s a list of the most common causes of the code so you can use it to your advantage to remove it:

Faulty oil pressure sensor

The oil pressure sensor may be faulty and send an incorrect signal to the engine control module. This can cause the engine control module to think that the oil pressure is too high, triggering the P0528 code.

Wiring issues

There may be an issue with the wiring between the oil pressure sensor and the engine control module. This can cause the signal to be disrupted, leading to the P0528 code.

Engine control module issues

The engine control module may malfunctioning and send incorrect signals to the oil pressure sensor. This can cause the sensor to read a high-voltage signal and trigger the code.

Low oil pressure

Low oil pressure can also cause this code to appear. This can be caused by a number of issues, including a faulty oil pump, clogged oil passages, or low oil levels.

Which car models does the P0528 code affect the most?

The P0528 code can affect a number of different car models, but it’s most commonly found in GM vehicles, such as Chevrolet, GMC, and Buick. This is because these vehicles tend to use oil pressure sensors that are more prone to failure than those found in other car models, and here’s a list of the most commonly affected ones:

• GMC Sierra: Like the Chevrolet Silverado 1500, some GMC Sierra 1500 owners have reported experiencing the code. This issue seems to be more prevalent in model years 2007 to 2013.
• Dodge Charger: Some Dodge Charger owners have also reported issues with the engine oil pressure sensor circuit, resulting in the code. This issue appears to be more common in model years ranging from 2007 to 2015.
• Jeep Wrangler: The P0528 code has been reported by some Jeep Wrangler owners, particularly those with model years ranging from 2007 to 2011.

How to diagnose the P0528 code

Diagnosing the P0528 code can be done using a number of different methods. The following are some of the most common diagnostic methods:

Use a scan tool

Using a scan tool can help you read the diagnostic trouble code and determine what’s causing it. This can be done by connecting the scan tool to the OBD-II port and following the prompts.

Check the oil pressure sensor

Checking the oil pressure sensor can help you determine if it’s faulty. This can be done using a multimeter to check the resistance of the sensor.

Check the wiring

Checking the wiring between the oil pressure sensor and the engine control module can help you determine if there’s an issue. This can be done by visually inspecting the wiring and checking for any damage or corrosion.

Check the engine control module

Checking the engine control module can help you determine if it’s malfunctioning. This can be done by checking for any fault codes related to the engine control module and performing any necessary repairs.

How to fix the P0528 code

Fixing the P0528 code can be done using a number of different methods, depending on the cause of the code. The following are some of the most common fixes:

Replace the oil pressure sensor

Replacing the faulty oil pressure sensor can solve the issue and clear the code. This is a relatively simple fix that can be done by a DIY mechanic.

Repair the wiring

Repairing the wiring between the oil pressure sensor and the engine control module can solve the issue. This may require replacing damaged wiring or cleaning corroded connections.

Replace the engine control module

If the engine control module is malfunctioning, it may need to be replaced. This is a more complex fix that should be done by a professional mechanic.

Check and repair low oil pressure issues

If low oil pressure is causing the P0528 code, it’s important to address the underlying issue. This may require repairing or replacing the oil pump, cleaning clogged oil passages, or adding more oil to the engine.

How to prevent the P0528 code

Preventing the P0528 code can be done by performing routine maintenance on your vehicle. This includes:

• Check the engine oil level regularly
• Changing oil filters on schedule
• Using high-quality oil filters
• Checking the engine temperature

Keeping your engine clean can also help prevent issues with your engine oil pressure sensor and other components.

Our take

Ultimately, the code P0528 is pretty serious since it may lead to engine oil pressure issues and permanent damage to your engine’s mechanical components due to overheating. So, we hope that this guide will give you all the right ingredients to fix the code and turn the odds in your favor while preventing the issue from recurring.