Programmed 12586242 PCM | Engine Computer for 2004 GM Trucks & SUVs

Get Back on the Road with Confidence

End the frustration of a poorly running vehicle. This engine computer (12586242) is the key to restoring the performance and reliability you depend on. We pre-program it to your exact VIN, so you can install it and drive with peace of mind, knowing your truck or SUV is running its best. Order today and solve your engine problems for good!

$119.95

+11.99 USPS Priority Shipping

Availability: In stock



Guaranteed Safe Checkout

Restore Peak Performance to Your GM Truck or SUV

Is your truck or SUV suffering from an illuminated check engine light, erratic shifting, poor fuel economy, or a frustrating no-start condition? These are classic signs of a failing Powertrain Control Module (PCM), the central computer of your vehicle. Don’t let a faulty computer keep you off the road. This direct-replacement Programmed 12586242 PCM is the definitive, hassle-free solution to restore your vehicle’s performance, reliability, and drivability.

Common Symptoms & Your Solution

A failing PCM can cause a wide range of confusing issues. If you’re experiencing any of the following, this module is the likely fix:

  • Persistent Check Engine Light (CEL)
  • Diagnostic Trouble Codes (DTCs) such as P0601, P0602, P0606
  • Poor or rough engine idle
  • Reduced fuel efficiency
  • Harsh or incorrect transmission shifting
  • Engine stalling or hesitation
  • Complete no-start condition

This unit arrives programmed specifically to your vehicle’s unique Vehicle Identification Number (VIN). We install the latest, most stable software updates from GM, ensuring your engine and transmission operate exactly as the manufacturer intended. This crucial step eliminates the need for an expensive trip to the dealership for programming.

Features & Tangible Benefits

  • ✔ VIN-Specific Programming Included: We flash the module to your vehicle’s VIN before shipping, ensuring a true plug-and-play installation for most vehicles.
  • ✔ Latest GM Software Updates: Benefit from improved fuel economy, smoother shifting, and optimized engine performance with the newest factory software.
  • ✔ Direct-Fit OEM Replacement: Engineered to match the original part’s fit, form, and function, guaranteeing a seamless and correct repair.
  • ✔ Solves Common Drivability Issues: The most reliable way to resolve persistent electronic and performance problems caused by a faulty computer.
  • ✔ One-Year Warranty: Drive with confidence knowing this unit is backed by our one-year replacement warranty.

An Expert’s Insight: As a technician with over two decades of experience, I’ve seen countless hours wasted chasing symptoms when the PCM was the root cause. A common mistake is replacing perfectly good sensors and coils when the computer itself is faulty. This pre-programmed module eliminates the guesswork. By providing your VIN, you’re not just getting a part; you’re getting a component loaded with the precise software your vehicle’s specific configuration requires for peak operation. It’s the most effective way to get your repair done right the first time.

Guaranteed Vehicle Compatibility

This Programmed 12586242 PCM is the correct replacement for units with service numbers 12586242, 19299226, 89017738, YFKD, YFKF, YFKH, YFKJ, YFKX, YFXL, YFXM, YFXN, YFXP, or YHTN. It fits a wide variety of 2004 GM trucks and SUVs, including:

  • Chevrolet Avalanche, Silverado, Suburban, Tahoe, SSR, Trailblazer EXT
  • GMC Sierra, Sierra Denali, Yukon, Yukon XL, Envoy XL, Envoy XUV
  • Cadillac Escalade, Escalade ESV, Escalade EXT
  • Buick Rainier
  • Hummer H2
  • Isuzu Ascender

Please verify your original part number or consult the detailed fitment list to ensure this is the correct computer for your vehicle. Getting the right part is the first step to a successful repair.

Frequently Asked Questions

Do I need to have this computer programmed by a dealer?

No. We handle the programming for you before the part is shipped. We use your vehicle’s 17-digit VIN to load the correct GM software and updates, making the installation process much simpler for you.

What information do you need from me after I order?

After you complete your purchase, you will need to provide us with your vehicle’s full 17-digit VIN. This is essential for us to program the Programmed 12586242 PCM correctly for your specific vehicle configuration.

Is this a difficult part to install?

Installation is generally straightforward. The PCM is typically located in the engine bay (next to the air box or under the battery). After swapping the part, you simply connect the wiring harnesses. Some vehicles may require a security relearn procedure, which is a simple process that can be done without special tools and instructions are widely available.

How can I be sure this is the right part for my vehicle?

The best way is to check the service number on the sticker of your current PCM. If it matches one of the numbers listed (e.g., 12586242, YFKD, YFKH, etc.), this is the correct replacement part for you.

Will this computer fix my Check Engine Light?

If your Check Engine Light and performance issues are caused by an internal failure of your existing PCM, then this part is the correct solution. However, it’s always recommended to have a proper diagnosis performed to rule out other potential issues like faulty sensors or wiring.

Condition

Refurbished

Year

Genuine OEM

Yes

MPN

12586242

Interchange part number

Model

envoy-xuv

Year

2004

Brand

GM

Manufacturer Part Number

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superseded part number

12586242 19299226 89017738 YFKD, YFKF YFKH YFKJ YFKX YFXL, YFXM YFXN YFXP YHTN

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