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How much does it cost to replace a PCM?

How much does it cost to replace a PCM?


The powertrain control module (PCM) is an essential component of modern vehicles, responsible for managing the engine’s performance. In the event of a PCM failure, it becomes necessary to replace the unit to ensure optimal functioning of the vehicle. However, the cost of replacing a PCM can vary depending on various factors such as the make and model of the car, the location, and whether you choose to go to a dealership or an independent mechanic.

Factors affecting the cost

Several factors play a role in determining the cost of replacing a PCM. Here are a few key considerations:

Make and model of the vehicle

Different vehicles have different types of PCMs, and the cost can vary accordingly. High-end luxury cars may have more expensive PCM units compared to economy models. It is important to check with your manufacturer or a trusted mechanic to get an accurate estimate for your specific vehicle.

Dealership vs. independent mechanic

Choosing between a dealership and an independent mechanic can significantly impact the cost of PCM replacement. Dealerships often charge higher prices due to their overheads and brand reputation. On the other hand, independent mechanics may offer more competitive prices. It is recommended to research and compare prices from different sources before making a decision.


The cost of labor and parts can vary depending on your location. Major cities and urban areas generally have higher living costs, which can translate to higher repair costs. It is advisable to consider this aspect when budgeting for PCM replacement.

Cost range

While exact prices may vary, the average cost to replace a PCM can range from £300 to £800 or more. This estimate includes both parts and labor. Keep in mind that these figures are approximate, and it is always best to consult with a professional for an accurate quote.

Note: The cost mentioned does not include any additional repairs or diagnostic fees that may be necessary alongside PCM replacement.

Additional considerations

When budgeting for PCM replacement, it is important to consider a few additional factors that may influence the final cost:

Warranty coverage

If your vehicle is still under warranty, the PCM replacement cost may be covered. Be sure to check your warranty terms and conditions to determine if you qualify for any financial assistance.

Diagnostic fees

In some cases, diagnostics may be required to accurately identify the PCM as the root cause of the issue. Diagnostic fees can vary depending on the mechanic or dealership. Ensure that you inquire about these fees upfront to avoid any surprises.

Do-it-yourself (DIY) option

For those with the necessary skills and knowledge, replacing a PCM themselves can save a significant amount of money. However, it is crucial to note that PCM replacement requires expertise, and any mistakes can result in further damage. Proceed with caution and seek guidance from a trusted source if choosing this route.

How much does an engine PCM cost?

What is an engine PCM?

An engine Powertrain Control Module (PCM) is a vital component in modern vehicles. It acts as the brain of the vehicle, controlling various functions such as fuel injection, ignition timing, and emission control. If your PCM malfunctions or fails, it can lead to significant issues with your vehicle’s performance.

Factors affecting the cost of an engine PCM:

Several factors influence the cost of a new engine PCM. These include:

  • The make and model of your vehicle
  • The manufacturer’s brand
  • Whether it’s a new or used PCM
  • The complexity of the PCM
  • Your location and local market prices

Cost range for a new engine PCM:

The cost of a new engine PCM can vary greatly depending on the factors mentioned above. On average, you can expect to pay between £200 and £600 for a new PCM. However, for luxury or high-performance vehicles, the cost can be significantly higher, sometimes reaching £1000 or more.

Used PCM options:

If you’re looking for a more affordable alternative, you may consider purchasing a used PCM. Used PCMs can typically be found at salvage yards or online marketplaces. The cost of a used PCM can range from £50 to £200, depending on the condition and compatibility with your vehicle.

Professional installation:

It’s important to note that the cost mentioned above may not include the installation fee. Installing a new engine PCM requires technical expertise, so it’s advisable to have it done by a professional mechanic. The installation cost can vary depending on the complexity of your vehicle’s PCM system and the labor rates in your area.


When considering the cost of replacing an engine PCM, it’s essential to factor in various elements such as the make and model of your vehicle, whether you choose a new or used PCM, and the cost of professional installation. While the price range for a new engine PCM is typically between £200 and £600, it’s advisable to consult with a trusted mechanic or dealership to get an accurate estimate for your specific vehicle.

How much does it cost to reset PCM?

The Process of Resetting a PCM

Resetting or reprogramming a Powertrain Control Module (PCM) is a common procedure in automotive diagnostics. It involves erasing and reprogramming the computer system that controls various engine functions. While it is a necessary step in some cases, it is important to note that resetting a PCM is not the same as replacing it. Resetting simply reverts the system back to its default settings.

Cost Factors

The cost of resetting a PCM can vary depending on several factors. These factors include the make and model of the vehicle, the location of the service center, and the labor rates charged by the technician. On average, the cost of resetting a PCM can range from **£50 to £150**. However, this should only be considered as a general estimate, and prices may differ based on individual circumstances.

Diagnostics and Repairs

Resetting the PCM is often performed as part of a larger diagnostic process to identify and address specific issues with the vehicle’s performance. In such cases, additional costs may be incurred for the necessary repairs or component replacements. It is essential to consult with a qualified technician who can accurately diagnose the problem before proceeding with any repairs or PCM resets.

Considerations and Alternatives

Before opting for a PCM reset, it is recommended to explore other potential solutions. In some instances, a less expensive alternative may be available, such as software updates or recalibration. Additionally, it is crucial to understand that a PCM reset may not always solve the underlying issue, and further diagnostics may be required.

In certain situations, a quote from a reliable technician can provide a better understanding of the overall cost involved. They will be able to assess your specific vehicle and inform you about the necessary steps and associated expenses.


The cost of resetting a PCM can vary depending on various factors, including the make and model of the vehicle and the related diagnostics and repairs. It is crucial to consult with a qualified technician to accurately diagnose the problem and determine the most appropriate and cost-effective solution. Remember that resetting a PCM is not a guaranteed fix for all issues, and further diagnostics may be required to address underlying problems.

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