Restore Your Truck’s Brain and Get Back on the Road
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 cause of endless frustration, turning your reliable vehicle into an unpredictable machine. This replacement PCM, service number 12586242, is the definitive solution to restore your vehicle’s performance and reliability. It arrives fully programmed to your specific Vehicle Identification Number (VIN), ensuring a straightforward installation and getting you back behind the wheel with confidence.
Common Symptoms of a Failing PCM & Your Solution
If you’re experiencing any of the following, a faulty module is the likely culprit. This pre-programmed unit is designed to fix these exact problems:
- Persistent Check Engine Light: Especially for internal module error codes like P0601, P0602, P0604, or P0606.
- Engine Stalling or Misfiring: Unexplained stalling at stops, rough idling, or hesitation during acceleration.
- Poor Fuel Economy: A sudden and unexplained drop in your vehicle’s MPG.
- Erratic Transmission Shifting: Harsh shifts, getting stuck in gear, or failure to shift properly.
- No-Start Condition: The engine cranks but refuses to start, even with a good battery and starter.
Installing our expertly programmed 2004 Yukon XL 1500 PCM is the most effective way to eliminate these issues and restore the precise engine and transmission management your vehicle had when it left the factory.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: No need for an expensive trip to the dealership. We flash the unit with your vehicle’s VIN and the latest GM software updates before it ships, making it ready for installation right out of the box.
- ✔ Restores Original Performance: By correcting engine and transmission parameters, this module restores lost horsepower, smooth shifting, and optimal fuel efficiency.
- ✔ Direct-Fit Replacement: Engineered to be a perfect match for a wide range of GM trucks and SUVs, this unit replaces original service numbers including 12586242, 19299226, 89017738, YFKD, YFKF, YFKH, and many more.
- ✔ Cost-Effective Solution: Avoid the high costs and programming fees associated with a new dealership part. This is the smart, reliable fix for your vehicle.
- ✔ Peace of Mind Included: This unit is backed by our one-year replacement warranty.
Expert Insight from a 20-Year Technician
I’ve seen countless vehicle owners chase their tails replacing sensors and spark plugs, only to find the root problem was the PCM all along. The computer is the central command center. When it fails, it sends bad data, causing good parts to behave incorrectly. The key to a successful repair is a correctly programmed module. A junkyard unit won’t have the right software for your specific VIN and options, leading to more problems. This professionally programmed 2004 Yukon XL 1500 PCM ensures all systems communicate correctly, just like the original, providing a lasting and reliable repair.
Frequently Asked Questions
Do I need to do anything after I install this PCM?
Yes. After installation, you will need to perform a security relearn procedure (often called a CASE relearn or anti-theft relearn). This procedure is simple, requires no special tools, and syncs the new PCM with your vehicle’s keys and anti-theft system. Instructions are readily available online for your specific model.
How do I provide my VIN number?
After you complete your purchase, you will need to send us your 17-digit VIN. You can typically add it as a note during checkout or send it to us in a message referencing your order number. We cannot ship the part until we have your VIN to program it.
Is this a guaranteed fix for my vehicle?
While this 2004 Yukon XL 1500 PCM is the correct solution for the symptoms listed, it’s crucial to ensure your vehicle has been properly diagnosed. A faulty PCM can mimic other issues, so we always recommend confirming the diagnosis with a qualified mechanic or by ruling out other potential causes like wiring or sensor failures.
Will this work for my 2004 Sierra 1500?
Yes, this PCM is compatible with a wide range of 2004 GM vehicles, including the Sierra 1500, Silverado, Tahoe, Suburban, Escalade, and more, as long as the service number on your original unit matches one of the numbers listed in the description (e.g., 12586242).
What if I order the wrong part?
We strongly encourage you to verify the service number on your current PCM before ordering. Providing us with your VIN for programming is our final check to ensure compatibility. If you have any doubts, please contact us before purchasing so we can help you verify the correct part for your vehicle.