Restore Peak Performance to Your GM Truck or SUV
The Powertrain Control Module (PCM) is the central command center for your vehicle’s engine and transmission. It meticulously manages critical functions like fuel delivery, ignition timing, emissions systems, and automatic transmission shift points. When your original PCM begins to fail, it can lead to a cascade of frustrating and potentially damaging issues, from poor fuel economy to a vehicle that won’t start at all. This replacement module is the definitive solution to restore the reliability and performance you expect from your GM vehicle.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the guesswork and high dealership costs out of the equation. Upon purchase, simply provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). Our technicians will then flash the module with the latest, most stable software updates directly from GM, ensuring optimal performance and compatibility. This critical programming step ensures that the PCM communicates flawlessly with all other modules in your specific vehicle, right out of the box.
From the Diagnostic Bay
We had a 2005 Silverado 2500 come in with a classic case of intermittent stalling. The owner had replaced the fuel pump and crank sensor, but the problem persisted, especially on hot days after a long drive. No specific codes were stored, just a generic P0300 random misfire that would pop up occasionally. After checking all the vitals, we suspected a heat-soaked PCM. These modules, located under the hood, can become susceptible to internal connection failures after years of heat cycles. We swapped in a VIN-programmed module like this one, and the truck has been running perfectly ever since. It’s a common failure point that often gets misdiagnosed.
Is Your GM Truck or SUV Showing These Symptoms?
A failing PCM can manifest in various ways. If you’re experiencing any of the following, a faulty module could be the culprit:
- ✔ Persistent Check Engine Light (CEL) that won’t clear
- ✔ Rough or erratic engine idling
- ✔ Unexplained stalling or hesitation during acceleration
- ✔ Noticeable decrease in fuel economy
- ✔ Harsh, delayed, or incorrect transmission shifting
- ✔ Complete no-start or no-spark condition
- ✔ Communication error codes with diagnostic scan tools
Why Choose Our Programmed GM PCM 89017750?
This module is a direct replacement for a wide range of popular GM trucks and SUVs, including the Silverado, Sierra, Suburban, Tahoe, Escalade, and Hummer H2 from 2003-2007. It directly replaces several service numbers, including 89017750, 12582605, 12589463, 12602802, 89017734, and 28042802. By ordering from us, you get a quality-tested component that is professionally programmed to your exact vehicle specifications, saving you a trip to the dealer and hundreds of dollars in programming fees. The installation is straightforward for any competent DIY mechanic or professional technician. Get your vehicle back on the road quickly and confidently with a reliable, pre-programmed PCM.
Frequently Asked Questions
Do I need to program this module?
No. This PCM arrives fully programmed to your vehicle’s VIN. We handle all the flashing with the latest GM software before it ships. It is ready for installation right out of the box.
How do I provide my 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 reply to your order confirmation email. We cannot ship the module until we receive your VIN.
Where is the PCM located on my vehicle?
On most compatible GM trucks and SUVs, the PCM is located in the engine bay on the driver’s side (LH), either under the battery tray or next to the air filter box. Always disconnect the battery before attempting removal or installation.
Will I need to perform any other procedures after installation?
In some cases, a security relearn procedure or a Crankshaft Variation (CASE) relearn may be necessary. These procedures can often be done without special tools, but a professional scan tool may be required for the CASE relearn. This ensures the PCM communicates correctly with the anti-theft system and crankshaft position sensor.
Is this a direct replacement for my original part?
Yes, this module is a direct-fit replacement for the original equipment and is compatible with service numbers 89017750, 12582605, 12589463, 12602802, 89017734, and 28042802. Please verify your part number and check the fitment list to ensure compatibility.