Restore Your GM Truck’s Peak Performance
Is your Yukon, Silverado, or Tahoe suffering from frustrating and unpredictable issues? A faulty Powertrain Control Module (PCM) can be the hidden cause of everything from a persistent check engine light and poor fuel economy to rough shifting and even a no-start condition. Stop chasing symptoms and replace the core of your vehicle’s management system. This module arrives programmed specifically for your vehicle, providing a direct and reliable solution to get you back on the road with confidence.
Common Symptoms of a Failing GM PCM & Your Solution
If you’re experiencing any of the following, a failing engine computer is the likely culprit. This professionally programmed module is designed to be the definitive fix for these common headaches:
- Erratic or harsh transmission shifting
- Unexplained drop in fuel mileage
- Engine stalling, stumbling, or rough idling
- Difficulty starting the vehicle or a complete no-start situation
- Check Engine Light (CEL) with communication codes (U-codes) or various sensor codes
- Loss of power and sluggish acceleration
By installing our Programmed 2003-2006 Yukon XL 1500 PCM, you are not just replacing a part; you are restoring your vehicle’s original drivability and operational integrity.
Features & Benefits
- โ VIN-Specific Programming: We flash the module with the latest GM software updates using your vehicle’s unique VIN. This ensures perfect compatibility and function right out of the box.
- โ Plug-and-Play Design: Because the unit is pre-programmed, it simplifies installation, minimizing vehicle downtime. In most cases, only a security relearn procedure is needed.
- โ Restored Drivability: Corrects engine and transmission issues, leading to smoother operation, consistent power delivery, and optimal fuel efficiency.
- โ Cost-Effective Solution: Avoids the high costs and programming fees associated with a dealership replacement, providing a smart, effective alternative.
- โ Broad Compatibility: A direct replacement for a wide range of popular GM trucks and SUVs, including service numbers 89017750, 12582605, 12589463, 12602802, and more.
- โ Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: The P59 Controller & The Relearn Procedure
This generation of GM vehicles uses the robust P59 controller. While our VIN programming handles the heavy lifting, your vehicle’s anti-theft system (Passlock/VATS) will need to sync with the new PCM. This is a simple “security relearn” that you can often do yourself in about 30 minutes with just the ignition key. Additionally, a “CASE Relearn” may be needed with a capable scan tool to sync the new computer with your crankshaft position sensor for optimal timing. This ensures the Programmed 2003-2006 Yukon XL 1500 PCM functions seamlessly with your specific engine.
Frequently Asked Questions
Do I need to do anything after installation?
Yes. After installation, you will need to perform a security relearn procedure so the module can sync with your vehicle’s anti-theft system. This can typically be done without special tools. In some cases, a Crankshaft Variation (CASE) relearn may also be required using a compatible scan tool to prevent a check engine light for code P0315.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot program and ship your module without it. Please double-check it for accuracy to ensure a perfect match.
Is this a brand new part?
This is a high-quality, tested, and verified component that has been expertly programmed to meet or exceed original factory specifications. It is a reliable and proven solution for your vehicle.
Will this fix my check engine light?
If the check engine light is caused by a faulty PCM, this part is the correct solution. However, you must ensure that any other underlying issues (e.g., bad sensors, wiring problems) have been properly diagnosed and repaired first.
What if my original part number isn’t on the list?
The provided list covers the most common service numbers. If your number is different, please contact us with your VIN. We can verify compatibility to ensure you receive the correct module for your truck or SUV.
How long does the programming process take?
Programming is typically completed within 1-2 business days after we receive your VIN. We pride ourselves on getting your part on its way to you as quickly as possible to minimize your vehicle’s downtime.