Restore Peak Performance to Your 2004 GM Truck or SUV
Is your dependable 2004 Suburban, Silverado, Sierra, or other GM vehicle suddenly stalling, running rough, or refusing to start? A failing Powertrain Control Module (PCM) is often the culprit behind these frustrating and complex issues. This isn’t just a replacement part; it’s a complete, ready-to-install solution. We provide a genuine OEM replacement Programmed 12586242 PCM, flashed with the latest official GM software specifically for your vehicle’s VIN. Get your truck or SUV back on the road quickly and confidently, without the expensive trip to the dealership.
Common Symptoms of a Failing GM PCM & Your Solution
If you’re experiencing any of the following, a faulty engine computer may be to blame. This unit is the definitive solution for issues stemming from a bad module:
- Severe drop in fuel economy
- Engine stalling or misfiring intermittently
- Difficulty or failure to start the engine
- Check Engine Light (CEL) is illuminated with codes like P0601, P0602, or P0606
- Harsh or erratic transmission shifting
- Loss of communication with the OBDII port
Replacing your old module with our professionally Programmed 12586242 PCM is the most reliable way to resolve these problems and restore the factory-perfect operation you depend on.
Features & Benefits
- âś” VIN-Specific Programming: No need for expensive scan tools or dealer visits. We flash the module with your vehicle’s exact VIN, ensuring it works correctly right out of the box.
- âś” Updated GM Software: Your computer will be loaded with the newest software updates from General Motors, which can improve fuel efficiency, idle quality, and overall drivability.
- âś” Guaranteed Compatibility: This module is a direct replacement for service numbers 12586242, 19299226, 89017738, and many others, ensuring a perfect fit for your 2004 GM truck or SUV.
- âś” Simple Installation: Designed for a straightforward swap. Once installed, some vehicles may require a simple security relearn procedure that you can do yourself in minutes with just your key.
- âś” Restored Dependability: Eliminate frustrating electrical gremlins and get your vehicle running like new again.
- âś” This unit is backed by our one-year replacement warranty.
An Expert’s Note on VIN Programming
As a technician with over two decades of experience, I can’t overstate the importance of proper VIN programming for these GM vehicles. Unlike a simple sensor, the PCM is the brain of your truck. It controls everything from fuel injection and spark timing to transmission shifts and the anti-theft system (VATS/Passlock). Simply installing a used computer from another vehicle will result in a no-start condition. Our service takes that critical, complex step and handles it for you, ensuring the new brain is a perfect match for your vehicle’s body and soul.
This is the ideal solution for the DIYer or professional mechanic looking for a reliable and efficient fix. By providing us with your VIN upon purchase, you ensure that the Programmed 12586242 PCM you receive is the correct one for your vehicle’s specific options and systems.
Frequently Asked Questions
Do I need to do any programming myself?
No. This computer comes fully programmed to the VIN you provide. In most cases, it is a plug-and-play installation. Some vehicles may require a simple security relearn procedure, which involves cycling the key and takes about 10-30 minutes to complete without any special tools.
Where do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We will then program the module before shipping it to you. Please ensure the VIN is 100% correct to avoid any compatibility issues.
What if my original part number isn’t 12586242?
This module is a direct replacement for a wide range of service numbers, including 19299226, 89017738, YFKD, YFKF, YFKH, YFKJ, YFKX, YFXL, YFXM, YFXN, YFXP, and YHTN. As long as your vehicle is on the compatibility list and has one of these service numbers, this unit will work perfectly.
What’s the difference between a PCM, ECM, and ECU?
These terms are often used interchangeably. ECM (Engine Control Module) and PCM (Powertrain Control Module) are the most common for GM vehicles. ECU (Engine Control Unit) is a more generic term. They all refer to the main computer that controls the engine and, in the case of a PCM, the transmission as well.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of the computer itself (e.g., DTC P0601: Internal Control Module Memory Check Sum Error), this replacement will solve the problem. However, it’s crucial to properly diagnose your vehicle, as the check engine light can be triggered by many other components, such as faulty sensors or wiring.