Restore Your Truck’s Performance and Reliability
Is your 2004 GMC Yukon XL 1500 suffering from frustrating issues like a persistent check engine light, erratic shifting, stalling, or a no-start condition? These are classic signs of a failing Powertrain Control Module (PCM), the electronic brain of your vehicle. Don’t let a faulty computer keep your dependable truck sidelined. This replacement PCM is the straightforward, reliable solution to get you back on the road with confidence.
Common Symptoms of a Failing PCM & Your Direct Solution
A failing engine computer can cause a wide range of problems that are often difficult to diagnose. If you’re experiencing any of the following, a faulty module is a likely culprit:
- Check Engine Light: Specifically for internal module codes like P0601, P0602, P0605, or P0606.
- Poor Performance: Noticeable loss of power, reduced fuel economy, and rough idling.
- Transmission Issues: Harsh or delayed shifting, or getting stuck in one gear.
- Starting Problems: The engine cranks but won’t start, or it stalls intermittently while driving.
This unit is a direct-fit replacement, pre-programmed specifically for your vehicle. We take your vehicle’s unique VIN and flash this computer with the latest, most stable software updates from GM. This ensures it communicates perfectly with your engine, transmission, and all other onboard systems, restoring its original performance and efficiency. This is the definitive fix for a bad 2004 Yukon XL 1500 PCM.
Features & Benefits: The Path to a Smooth-Running Vehicle
- ✔ VIN-Programmed for You: No need for an expensive trip to the dealer. This unit arrives flashed to your specific VIN, ensuring seamless integration and function.
- ✔ Plug & Play Design: Installation is straightforward. Once the required security relearn procedure is completed, your vehicle is ready to go.
- ✔ Latest GM Software: We load the newest factory updates to correct original bugs and optimize engine and transmission performance.
- ✔ Guaranteed Compatibility: This module is a direct replacement for service numbers 12586242, 19299226, 89017738 and many more, ensuring it’s the right part for your truck.
- ✔ Restored Dependability: Eliminate the guesswork and worry caused by a failing computer. Drive with the assurance that your truck’s core electronics are functioning correctly.
- ✔ Peace of mind: This unit is backed by our one-year replacement warranty.
An Expert Tech’s Tip: Check Your Grounds First!
As a technician with over 20 years of experience, I’ve seen it all. Before you condemn your PCM, take 10 minutes to inspect and clean your main battery terminals and the primary engine-to-chassis ground straps. A corroded or loose ground can cause voltage fluctuations that mimic PCM failure, throwing all sorts of confusing codes. It’s a simple check that can save you time and money. If your grounds are solid and the problems persist, then replacing your 2004 Yukon XL 1500 PCM is the correct and necessary repair.
Getting your truck or SUV back to its reliable self shouldn’t be a complicated ordeal. By providing us with your VIN upon purchase, you receive a component that is specifically prepared for your vehicle, making the repair process as smooth as possible. This is the ideal solution for the DIY mechanic or professional shop looking for a dependable 2004 Yukon XL 1500 PCM.
Frequently Asked Questions
Do I need to do any programming myself?
No. This engine computer comes fully programmed to the VIN you provide. However, you will need to perform a simple security relearn procedure (often called a Passlock or VATS relearn) after installation so the module can recognize your keys. This procedure can be done without any special tools and instructions are readily available online.
Where do I provide my vehicle’s VIN?
After you complete your purchase, you can send us a message with your 17-digit VIN. We cannot ship your part until we receive this information, as the programming is specific to your vehicle.
Will this fix my check engine light?
This module will resolve any diagnostic trouble codes (DTCs) caused by an internal failure of the original PCM itself. If your check engine light is on for other reasons, such as a faulty sensor or a mechanical issue, those problems will need to be addressed separately.
What if my original part number isn’t 12586242?
That’s okay. GM uses many different service numbers for the same computer. As long as your vehicle is listed in the compatibility chart and your original service number is on our cross-reference list (e.g., 19299226, 89017738, YFKD, YFKF, etc.), this unit will be the correct programmed replacement for your vehicle.
Is this a brand new part?
This is a high-quality, genuine OEM computer that has been thoroughly inspected, tested, and programmed with the latest software to ensure it meets or exceeds original factory specifications. It provides the same reliability as a new part without the high dealer cost.