Restore Your Truck’s Performance and Reliability
Is your 2004 Suburban, Tahoe, or Sierra suffering from frustrating and unpredictable issues? A faulty Powertrain Control Module (PCM) can cause everything from a persistent check engine light and rough idling to stalling or a complete no-start condition. Don’t let a failing engine computer keep your dependable GM truck parked. This fully programmed PCM is the definitive, reliable solution to get you back on the road with confidence.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a failing PCM is the likely culprit:
- Erratic engine performance, stumbling, or misfires
- Poor fuel economy
- Failure to pass emissions tests
- Intermittent or complete no-start situations
- Check Engine Light with communication-related Diagnostic Trouble Codes (DTCs) like P0601, P0602, or P0606
- Harsh or incorrect transmission shifting
This unit is the direct answer to these problems. We take a genuine GM module, flash it with the latest, most stable software updates direct from the manufacturer, and program it specifically to your vehicle’s unique Vehicle Identification Number (VIN). This ensures perfect compatibility and restores your engine’s original performance and efficiency. When you install our 2004 Suburban 1500 PCM 12586242, you’re not just replacing a part; you’re restoring the heart of your vehicle’s operations.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: Arrives ready for installation, specifically matched to your truck’s VIN to ensure seamless communication with all onboard systems.
- ✔ Updated GM Software: Flashed with the newest factory calibrations to optimize fuel efficiency, emissions, and engine performance.
- ✔ Direct-Fit Replacement: Guaranteed to fit and function correctly for all vehicles listed with service numbers 12586242, 19299226, YFKF, and others.
- ✔ Solves Common Driveability Issues: The definitive fix for issues caused by a faulty original computer, from check engine lights to no-start conditions.
- ✔ Cost-Effective Solution: Avoids the high costs and programming fees associated with a dealership replacement.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: The Critical Role of VIN Programming
As a technician with over 20 years of experience, I can’t stress this enough: VIN-specific programming is not optional. Your truck’s PCM communicates with the transmission, ABS, instrument cluster, and anti-theft system. A generic, non-programmed module from a salvage yard will cause communication conflicts, a no-start condition due to the security system, and incorrect engine parameters. Our process ensures this 2004 Suburban 1500 PCM 12586242 is a true plug-in solution, saving you the headache of extra dealership visits and programming fees.
By providing us with your VIN upon purchase, you ensure that the 2004 Suburban 1500 PCM 12586242 you receive is perfectly tailored to your vehicle’s specific configuration. This is the most reliable and efficient way to get your truck running like new again.
Frequently Asked Questions
Do I need to provide my VIN?
Yes. Providing your Vehicle Identification Number (VIN) is essential. We use it to program the module with the correct software and calibrations for your specific truck, ensuring it works correctly right out of the box.
Will this PCM require additional programming after installation?
Our programming handles the engine and transmission operating systems. However, on most GM vehicles of this era, you will need to perform a simple security relearn procedure. This procedure can be done yourself in about 15 minutes without any special tools and links the new PCM to your vehicle’s keys.
How do I find my part number to confirm a match?
Your original PCM’s service number is printed on the factory label, typically on the main connector side. This unit is a direct replacement for service numbers 12586242, 19299226, 89017738, YFKD, YFKF, YFKH, YFKJ, YFKX, and many others listed in the fitment details.
Is this a difficult part to install?
For someone with basic mechanical skills, this is a straightforward installation. The PCM is typically located in the engine bay, under the battery tray or next to the airbox. It involves disconnecting the battery, unplugging the electrical connectors, and unbolting the module. The entire process usually takes less than an hour.
What are the most common signs of a failing PCM?
The most common symptoms include a check engine light that won’t go away, unexplained engine stalling or rough running, poor fuel mileage, and in severe cases, the vehicle not starting at all. You may also have trouble codes related to internal processor failure, such as P0601.