Is Your GM Truck or SUV Experiencing Frustrating Problems?
There’s nothing more stressful than a vehicle that won’t run right. If your 2004 Chevrolet SSR, Silverado, Tahoe, or other compatible GM vehicle is stalling, shifting erratically, or simply won’t start, a failing Engine Control Module (ECM) is often the culprit. You need a reliable solution that gets you back on the road without the hassle of a dealership visit. This pre-programmed 2004 Chevy SSR Engine Computer 12586242 is the definitive answer, designed to restore your vehicle’s performance and your peace of mind.
Common Symptoms of a Failing ECM & Your Direct-Fit Solution
A faulty engine computer can cause a wide range of issues that can be difficult to diagnose. If you’re experiencing any of the following, it’s a strong sign that your ECM needs replacement:
- Check Engine Light: An illuminated Check Engine Light, especially with communication-related codes (like P0601 or P0606), points directly to an internal computer fault.
- No-Start Condition: The engine cranks but refuses to start because the ECM isn’t managing fuel or spark correctly.
- Stalling and Poor Performance: Your vehicle may stall unexpectedly, hesitate during acceleration, or suffer from a noticeable loss of power and poor fuel economy.
- Erratic Shifting: The ECM communicates with the transmission controller; a failure can lead to harsh, delayed, or incorrect gear changes.
This unit is the perfect solution. We take a genuine OEM module and flash it with the latest GM-certified software, specifically matched to your vehicle using its unique Vehicle Identification Number (VIN). This ensures perfect communication between all of your vehicle’s critical systems.
Features & Benefits
- ✔ Plug-and-Play Installation: Because we program the module to your VIN before shipping, it arrives ready to install. No expensive dealer programming is required.
- ✔ Restored Engine Performance: Flashed with the latest GM updates, this computer optimizes fuel delivery, ignition timing, and transmission shifting for a smooth, reliable ride.
- ✔ Guaranteed Compatibility: This module is a direct replacement for service numbers 12586242, 19299226, 89017738, YFKD, YFKF, YFKH, YFKJ, YFKX, YFXL, YFXM, YFXN, YFXP, and YHTN.
- ✔ Cost-Effective Solution: Get your vehicle running perfectly again without the high costs and long wait times associated with a dealership repair.
- ✔ Peace of Mind Protection: This unit is backed by our one-year replacement warranty.
An Expert’s Note on VIN Programming
As a technician with over 20 years of experience, I can’t overstate the importance of proper VIN programming. Your vehicle isn’t just an engine and wheels; it’s a network of computers. The ECM is the central hub. When we program this 2004 Chevy SSR Engine Computer 12586242 with your VIN, we’re not just loading software—we’re teaching it to speak the exact digital language of your truck. This ensures the anti-theft system, ABS, gauges, and transmission all work in perfect harmony from the moment you turn the key. Skipping this step is a recipe for disaster, and it’s why our pre-programming service is essential for a successful repair.
Frequently Asked Questions
Do I need to do any programming myself?
No. This engine computer comes fully programmed to your vehicle’s VIN. In most cases, you will only need to perform a simple security relearn procedure, which involves cycling the key in the ignition. We provide easy-to-follow instructions for this process.
Where do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit VIN. We will contact you with instructions, or you can add it as a note during checkout. We cannot ship the part until we have your VIN to ensure correct programming.
Is this compatible with my truck if the part number isn’t an exact match?
Yes, this module is a direct replacement for a wide range of part and service numbers, including 12586242, 19299226, 89017738, and many others listed in the description. As long as your vehicle is listed in our compatibility chart, this programmed unit will work perfectly.
What is the security relearn procedure?
For most GM vehicles of this era, the security relearn (also known as the VATS or Passlock relearn) is a simple 30-minute process. It typically involves turning the key to the ‘ON’ position for 10 minutes, off for 10 seconds, and repeating this cycle three times. This syncs the new ECM with your vehicle’s anti-theft system.
How can I be certain my old ECM is the problem?
While the symptoms listed above are strong indicators, we always recommend a proper diagnosis by a qualified mechanic. Common checks include verifying power and ground signals to the ECM and checking for communication with a professional scan tool before ordering a replacement 2004 Chevy SSR Engine Computer 12586242.