Restore Your Vehicle’s Brain and Brawn
Is your truck or SUV suffering from baffling electrical issues, a persistent check engine light, or poor performance? A failing Powertrain Control Module (PCM) can be the hidden culprit, disrupting everything from fuel delivery to transmission shifting. This direct-replacement PCM, service number 12586242, is the definitive solution to restore the crisp, reliable performance your vehicle had when it was new. We take the guesswork and hassle out of the repair by pre-programming the unit to your specific Vehicle Identification Number (VIN), ensuring a seamless installation process for your 2004 Escalade PCM 12586242 or other compatible GM vehicle.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty PCM is the likely cause. This module is the correct fix for:
- Unexplained Check Engine Light (CEL) illumination
- Diagnostic Trouble Codes (DTCs) related to internal module failure (e.g., P0601, P0606)
- Rough or erratic engine idle
- Poor fuel economy
- Hesitation or stalling during acceleration
- Harsh or incorrect transmission shifting
- Complete no-start condition where the engine cranks but won’t fire
Features & Benefits
- ✔ VIN-Specific Programming: We flash this module with the latest GM software updates using your vehicle’s VIN. This ensures perfect compatibility and function right out of the box, eliminating the need for an expensive trip to the dealership.
- ✔ Restored Performance: By correcting engine and transmission management, this PCM restores lost horsepower, smooths out your idle, and can significantly improve fuel efficiency.
- ✔ Guaranteed Compatibility: This unit is a direct replacement for service numbers 12586242, 19299226, 89017738, YFKD, YFKF, YFKH, YFKJ, YFKX, YFXL, YFXM, YFXN, YFXP, and YHTN, covering a wide range of 2004 GM trucks and SUVs.
- ✔ Plug & Play Design: Once programmed, the installation is straightforward. In most cases, you can simply disconnect the old module and connect the new one, getting you back on the road faster.
- ✔ Complete Confidence: This unit is backed by our one-year replacement warranty.
Expert Tech Tip: Check Your Grounds First!
Before condemning your PCM, take a moment to inspect your vehicle’s main battery cables and engine/chassis ground straps. A corroded, loose, or damaged ground can cause erratic voltage and mimic the symptoms of a failed computer. A few minutes of inspection can save you time and confirm your diagnosis. A solid electrical foundation is key to the longevity of any electronic component, including your new 2004 Escalade PCM 12586242.
Broad GM Truck & SUV Fitment
This Engine Control Module is engineered for a wide variety of popular 2004 GM models. It is the correct component for the Cadillac Escalade (ESV, EXT), Chevrolet Avalanche, Silverado, Suburban, Tahoe, SSR, Trailblazer EXT, GMC Sierra, Yukon (XL, Denali), Buick Rainier, Hummer H2, Isuzu Ascender, and Oldsmobile Bravada equipped with compatible engines. Please verify that your original module carries one of the listed service numbers to ensure a perfect match.
Frequently Asked Questions
What information do you need from me after I order?
After your purchase, you must provide us with your 17-digit Vehicle Identification Number (VIN). This is essential for us to program the module correctly for your specific vehicle’s configuration.
Is this a true ‘plug-and-play’ installation?
Yes, for the vast majority of vehicles. We handle the programming so you don’t have to. However, some GM vehicles may require a simple security relearn procedure (often called a CASE relearn or anti-theft relearn) after installation, which can typically be done without special tools. Instructions are widely available online for this process.
How do I find my original part number?
Your original part or service number is printed on a sticker on the casing of your current PCM. You will need to locate the module in your vehicle (often under the hood, near the battery or airbox) to read this sticker.
Will this fix my specific check engine light codes?
This PCM will resolve any codes directly caused by an internal failure of the original computer itself. It will not fix codes related to other faulty components on the vehicle, such as a bad oxygen sensor or ignition coil.
My vehicle has performance modifications. Will this work?
This module is programmed with standard, factory-calibrated GM software for a stock vehicle configuration. It is not designed to accommodate significant aftermarket performance modifications.
What is the warranty on this part?
This unit is backed by our one-year replacement warranty, giving you confidence in your repair.