Restore Peak Performance to Your GM Truck or SUV
Is your 2004 Cadillac Escalade EXT, Sierra, or Tahoe suffering from frustrating and persistent issues like a check engine light that won’t go away, rough running, stalling, or a complete no-start condition? These are classic signs of a failing Powertrain Control Module (PCM). Don’t let a faulty computer keep you off the road. This professionally programmed PCM is the definitive, reliable solution to restore your vehicle’s brain and bring back the smooth, dependable performance you expect.
Common Symptoms & Your Solution
A failing PCM can cause a wide range of problems that can be difficult to diagnose. If you’re experiencing any of the following, this module is your answer:
- Persistent Check Engine Light (CEL) with codes like P0601, P0602, or P0606
- Unexplained stalling or engine hesitation
- Poor fuel economy and reduced power
- Erratic automatic transmission shifting
- Communication errors with diagnostic scan tools
- Vehicle failing emissions testing
By replacing your old unit with this correctly programmed 2004 Escalade EXT PCM, you are directly addressing the root cause of these issues, providing a lasting and effective repair.
Features & Benefits
- โ VIN-Programmed for Your Vehicle: This isn’t a generic, one-size-fits-all part. We flash the module with your vehicle’s specific VIN and install the latest GM software updates, ensuring perfect communication between all systems right out of the box.
- โ True Plug-and-Play Installation: Because it arrives pre-programmed, you can skip the expensive trip to the dealership for coding. This module is ready for installation upon arrival, saving you significant time, money, and hassle.
- โ Restores Original Drivability: Eliminate frustrating performance problems. This PCM is engineered to restore proper fuel delivery, ignition timing, and transmission control, making your truck or SUV drive like new again.
- โ Direct-Fit OEM Replacement: This unit is a direct replacement for service number 12586242 and a wide range of other compatible part numbers, guaranteeing a perfect fit and function for your 2004 GM vehicle.
- โ Guaranteed Confidence: This unit is backed by our one-year replacement warranty. Drive with the assurance that your vehicle’s most critical component is protected.
An Expert’s Note on PCM Replacement
As a technician with over 20 years of experience, I’ve seen countless vehicle issues caused by improperly sourced or non-programmed control modules. Simply installing a used computer from another vehicle will almost always result in a no-start condition due to security mismatches and incorrect calibration files. Our process of programming this 2004 Escalade EXT PCM to your specific VIN is not just a convenienceโit’s a critical step that ensures all onboard systems, from the engine and transmission to the anti-lock brakes, function together exactly as the manufacturer intended.
Frequently Asked Questions
Do I need to do any extra programming myself?
No. We handle all the programming before shipment based on the VIN you provide. The only thing you may need to perform after installation is a security relearn procedure, which is a simple process that can be done without any special tools and takes about 30 minutes. Instructions are readily available online for your specific model.
Where do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive this information, as it is essential for the programming process.
Is this a brand new part?
This is a professionally inspected and tested OEM part that has been verified for full functionality. It is then programmed with the latest software for your vehicle, ensuring performance that meets or exceeds the original factory specifications.
How do I confirm this part fits my vehicle?
The best way to ensure compatibility is to match the service number from your original PCM to one of the numbers listed in our description (e.g., 12586242, 19299226, 89017738). This 2004 Escalade EXT PCM fits a wide variety of GM trucks and SUVs from that model year, but matching the service number is the most accurate method.
What tools are needed for installation?
Installation is typically straightforward and requires only basic hand tools, such as a socket set and ratchet, to disconnect the battery and unbolt the module. The PCM is usually located in the engine bay, either under the battery tray or next to the airbox.