Restore Peak Performance to Your GM Truck or SUV
Is your Yukon, Tahoe, or Silverado suffering from frustrating and unpredictable issues? An erratic check engine light, poor fuel economy, harsh transmission shifts, or even a no-start condition can often be traced back to a failing Powertrain Control Module (PCM). This critical component is the brain of your vehicle, and when it falters, it can cause a cascade of problems. This replacement PCM is the definitive, reliable solution to get your truck back on the road and running like it should.
Common Symptoms of a Failing GM PCM & Your Solution
If you’re experiencing any of the following, a faulty engine computer is the likely culprit. This VIN-programmed module is designed to solve these exact problems:
- Persistent Check Engine Light (CEL) for codes like P0601, P0602, P0606
- Engine stalling, stumbling, or rough idling
- Inconsistent or harsh transmission shifting
- Noticeable decrease in fuel mileage
- Vehicle won’t start, despite having a good battery and starter
- Communication errors with diagnostic scan tools
Instead of wrestling with a problematic module or paying steep dealership prices, our pre-programmed 2003-2006 Yukon XL 1500 PCM offers a direct and dependable fix. We handle all the programming before it ships, saving you time, money, and hassle.
Features & Benefits
- ✔ Plug & Drive Installation: This module arrives pre-flashed to your vehicle’s specific VIN. No extra programming or expensive dealer trips are required.
- ✔ Updated GM Software: We load the latest factory software updates from GM, ensuring optimal engine performance, transmission control, and fuel efficiency.
- ✔ Guaranteed Compatibility: By programming to your VIN, we ensure the PCM works perfectly with your vehicle’s specific options and systems.
- ✔ Direct-Fit Replacement: Engineered to match the original form and function, this PCM installs using the factory mounting location and connectors.
- ✔ Solves Common Drivability Issues: Puts an end to frustrating symptoms caused by a failing computer, restoring smooth and reliable operation.
- ✔ Peace of Mind Guarantee: This unit is backed by our one-year replacement warranty.
An Expert’s Note on VIN Programming
Many people don’t realize that a PCM for a vehicle like a Yukon or Sierra isn’t a simple, universal part. Your truck’s VIN is linked to its specific factory options—engine size, transmission type, axle ratio, and even tire size. Our VIN-specific programming is the most crucial step. It ensures all related modules communicate flawlessly, from the transmission controller to the anti-lock brake system. This meticulous process is what separates a quick fix from a long-term, reliable repair, giving you performance you can trust.
This module is a direct replacement for multiple service numbers, including 89017750, 12582605, 12589463, 12602802, and 89017734, making it the correct choice for a wide range of GM trucks and SUVs. Simply provide your VIN after purchase, and we’ll prepare your new 2003-2006 Yukon XL 1500 PCM for shipment.
Frequently Asked Questions
Do I need to do any programming after I receive it?
No. This PCM comes fully programmed to your vehicle’s VIN with the latest GM software. It is ready for installation right out of the box. In most cases, a security relearn procedure may be required, which is a simple process that can be done without any special tools.
How do I provide my Vehicle Identification Number (VIN)?
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 receive your VIN.
Where is the PCM located on my vehicle?
On most compatible GM trucks and SUVs like the Yukon, Tahoe, and Silverado, the PCM is located in the engine bay on the driver’s side, under or next to the battery tray.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of the original PCM (common codes include P0601, P0606), this replacement unit is the correct solution. However, you should always ensure that any other potential issues (e.g., faulty sensors, wiring problems) have been properly diagnosed and addressed.
Is this compatible with other GM models like the Silverado or Escalade?
Yes, this PCM is compatible with a very wide range of GM trucks and SUVs from approximately 2003 to 2007. Please refer to the detailed compatibility list on this page to confirm it fits your specific year, make, and model.
What is the difference between a PCM, ECM, and ECU?
The terms are often used interchangeably. PCM (Powertrain Control Module) is the most accurate term for these GM vehicles, as it controls both the engine and transmission. ECM (Engine Control Module) and ECU (Engine Control Unit) typically refer to a computer that only manages engine functions.