Is Your Truck or SUV Running Rough? Get Back on the Road with Confidence.
If you’re dealing with frustrating issues like a persistent check engine light, erratic engine performance, stalling, or poor fuel economy, a failing Powertrain Control Module (PCM) is often the culprit. This isn’t just an inconvenience; it’s a problem that compromises the reliability and performance of your vehicle. This genuine GM engine computer is the definitive solution, designed to restore your vehicle’s brain to perfect working order and get you back to driving with peace of mind.
Common Symptoms & Your Solution
A faulty PCM can manifest in numerous ways, leaving you stranded or second-guessing your vehicle’s dependability. If you’re experiencing any of the following, this pre-programmed module is your answer:
- Unexplained Check Engine Light (CEL)
- Engine stalling or cutting out while driving
- Rough or inconsistent idling
- Noticeable decrease in fuel efficiency
- Harsh or incorrect transmission shifting
- Vehicle won’t start, despite a good battery and starter
- Communication error codes (e.g., U-codes)
Instead of paying for expensive diagnostics and dealership programming fees, this module arrives ready for installation. We take your vehicle’s unique VIN and flash this unit with the latest, most stable software updates directly from GM. This ensures that your new 2004 Yukon 12602802 PCM is perfectly matched to your specific configuration.
Features & Benefits
- โ VIN-Specific Programming: We flash the module with the latest GM updates using your VIN, ensuring it works seamlessly with your vehicle’s options and systems right out of the box.
- โ Restored Performance: Corrects issues with fuel mixture, ignition timing, and transmission control to bring back the smooth, reliable performance you expect.
- โ Simple Installation: Because it’s pre-programmed, this module is a direct-fit replacement. In most cases, no further programming is required, saving you a trip to the dealership.
- โ Guaranteed Compatibility: This unit is a direct replacement for service numbers 89017750, 12582605, 12589463, 12602802, 89017734, and 28042802.
- โ Purchase Protection: This unit is backed by our one-year replacement warranty.
Expert Insight: The Importance of Correct Software
As a technician, I’ve seen firsthand how the right software makes all the difference. Your PCM is more than just a box; it’s the central command for your entire powertrain. The factory software updates we install do more than just fix bugs. They often contain refinements to transmission shift strategies for better longevity, adjustments to fuel tables for improved economy, and enhanced diagnostic capabilities. Installing a 2004 Yukon 12602802 PCM with these updates is the closest you can get to restoring that ‘new truck’ feel and efficiency.
Don’t let a faulty computer dictate your vehicle’s reliability. Take control with a properly programmed PCM that’s ready to install. This is the same high-quality component found in a wide range of hardworking GM vehicles, from the GMC Sierra and Chevy Silverado to the Cadillac Escalade and Hummer H2. By providing us with your VIN, you ensure a perfect match and a lasting repair. This is the most effective way to solve complex electronic issues and restore your vehicle’s core function. Order your 2004 Yukon 12602802 PCM today and drive with renewed confidence.
Frequently Asked Questions
What is a PCM and what does it do?
The Powertrain Control Module (PCM), also known as the Engine Control Module (ECM), is your vehicle’s main computer. It controls all aspects of engine and transmission function, including fuel injection, spark timing, and shift points, to ensure optimal performance, fuel economy, and emissions.
How do I provide my VIN number?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (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 program and ship the module without it.
Will I need to do anything after installing this PCM?
In most cases, this is a plug-and-play installation. However, some vehicles may require a security relearn procedure (often called a CASE relearn or anti-theft relearn), which can typically be done without special tools. Instructions for this simple procedure can be easily found online for your specific model.
Is this the correct part for my vehicle?
This module fits a very wide range of GM trucks and SUVs. Please review the detailed fitment list on this page and match your vehicle’s year, make, and model. The most important step is to verify that your original module has one of the compatible service numbers listed, such as 12602802.
What if I have questions during installation?
While we cannot provide vehicle-specific repair advice, our team is here to support the product itself. We recommend professional installation if you are not comfortable with automotive electronics, but the process is very straightforward for an experienced DIYer or any qualified technician.