Get Your Truck Back on the Road, Running Strong
Is your dependable GM truck or SUV suddenly running rough, shifting poorly, or displaying a persistent Check Engine Light? A failing Powertrain Control Module (PCM) is often the culprit, acting as the brain of your engine and transmission. This replacement engine computer is the definitive, hassle-free solution to restore your vehicle’s performance and reliability. We take the guesswork out of the repair by pre-programming the module to your vehicle’s specific VIN with the latest factory software updates from GM. This ensures it works seamlessly with your truck right out of the box, getting you back to work and back on the road with confidence.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty PCM is the likely cause. This unit is designed to be the direct solution for these frustrating issues:
- Persistent Check Engine Light: Especially with communication error codes like P0601, P0602, P0605, or P0606.
- Poor Engine Performance: Noticeable loss of power, hesitation during acceleration, or rough idling.
- Decreased Fuel Economy: Your truck is suddenly using more gas than usual for no apparent reason.
- Erratic Shifting or Transmission Problems: The transmission may shift harshly, late, or not at all.
- Engine Stalling or No-Start Condition: The most severe symptom, where the engine randomly stalls or fails to start.
By installing our expertly prepared programmed GM 12582605 PCM, you are not just replacing a part; you are restoring the core logic that makes your engine run efficiently and reliably.
Features & Benefits
- ✔ VIN-Specific Programming: Arrives ready for installation, pre-flashed to your exact vehicle. This eliminates the need for an expensive trip to the dealership for programming.
- ✔ Latest GM Software: We load the most current factory calibrations, ensuring optimal engine performance, fuel efficiency, and emissions compliance.
- ✔ Direct-Fit Replacement: Engineered to be a perfect match for the original unit, guaranteeing a straightforward installation and proper communication with all other vehicle systems.
- ✔ Restores Original Power: Corrects engine and transmission control issues to bring back the smooth, powerful performance you expect from your GM vehicle.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
An Expert’s Note: As a technician with over two decades of experience, I’ve seen countless engine problems caused by generic, non-programmed modules. A PCM isn’t just a component; it’s the central command for your powertrain. Our process ensures this brain has the exact operational ‘DNA’ for your specific vehicle by using your VIN. This critical step eliminates guesswork and prevents the frustrating, hard-to-diagnose issues that arise from a mismatched computer, ultimately saving you significant time, money, and headaches. A properly programmed GM 12582605 PCM is the foundation of a reliable repair.
ESCALADE 04 Electronic Control Module; (LH front under battery), ID 12602802
ESCALADE EXT 04 Electronic Control Module; (LH front under battery), ID 12602802
HUMMER H2 04 Electronic Control Module; (LH front under battery), SUV
SIERRA 3500 PICKUP 03 Electronic Control Module; (LH front under battery), gasoline, 6.0L
TAHOE 04 Electronic Control Module; (LH front under battery), ID 12602802
YUKON XL 2500 04 Electronic Control Module; (LH front under battery), 6.0L, ID 12602802
ENVOY XL 03 Electronic Control Module; 5.3L (next to air box)
SUBURBAN 2500 03 Electronic Control Module; (LH front under battery), 6.0L
YUKON 04 Electronic Control Module; (LH front under battery), ID 12602802
YUKON XL 2500 05-06 Electronic Control Module; (LH front under battery), 6.0L
AVALANCHE 1500 04 Electronic Control Module; (LH front under battery), ID 12602802
SIERRA 1500 PICKUP 07 Electronic Control Module; classic style (creased door skin), (LH front under battery), w/o hybrid option; w/o 4.3L
SIERRA DENALI 05-06 Electronic Control Module; (LH front under battery)
SUBURBAN 2500 04 Electronic Control Module; (LH front under battery), 6.0L, ID 12602802
YUKON XL 1500 03 Electronic Control Module; (LH front under battery)
YUKON XL 1500 04 Electronic Control Module; (LH front under battery), ID 12602802
ESCALADE ESV 03 Electronic Control Module; (LH front under battery), PCM
ESCALADE ESV 04 Electronic Control Module; (LH front under battery), ID 12602802
HUMMER H2 07 Electronic Control Module; (LH front under battery), powertrain control
SIERRA 3500 PICKUP 05-06 Electronic Control Module; (LH front under battery), gasoline, 6.0L
SIERRA DENALI 03 Electronic Control Module; (LH front under battery)
SILVERADO 2500 PICKUP 05-06 Electronic Control Module; (LH front under battery), gasoline, 6.0L
SUBURBAN 1500 03 Electronic Control Module; (LH front under battery)
HUMMER H2 05-06 Electronic Control Module; (LH front under battery)
SIERRA 2500 PICKUP 04 Electronic Control Module; (LH front under battery), gasoline, 6.0L, ID 12602802
YUKON 03 Electronic Control Module; (LH front under battery)
ESCALADE 05-06 Electronic Control Module; (LH front under battery)
ESCALADE ESV 05-06 Electronic Control Module; (LH front under battery)
SIERRA 2500 PICKUP 05-06 Electronic Control Module; (LH front under battery), gasoline, 6.0L
AVALANCHE 1500 03 Electronic Control Module; (LH front under battery)
SILVERADO 2500 PICKUP 03 Electronic Control Module; (LH front under battery), gasoline, 6.0L
SILVERADO 1500 PICKUP 04 Electronic Control Module; (LH front under battery), w/o hybrid option; w/o 4.3L; ID 12602802
TAHOE 03 Electronic Control Module; (LH front under battery)
TAHOE 05-06 Electronic Control Module; (LH front under battery)
YUKON 05-06 Electronic Control Module; (LH front under battery)
SILVERADO 3500 PICKUP 04 Electronic Control Module; (LH front under battery), gasoline, 6.0L, ID 12602802
SILVERADO 2500 PICKUP 07 Electronic Control Module; classic style (creased door skin), (LH front under battery), gasoline, 6.0L
SILVERADO 3500 PICKUP 05-06 Electronic Control Module; (LH front under battery), gasoline, 6.0L
SUBURBAN 1500 04 Electronic Control Module; (LH front under battery), ID 12602802
ISUZU ASCENDER 03 Electronic Control Module; (LH engine), 5.3L
SIERRA 1500 PICKUP 03 Electronic Control Module; (LH front under battery), w/o 4.3L
SIERRA 1500 PICKUP 04 Electronic Control Module; (LH front under battery), w/o hybrid option; w/o 4.3L; ID 12602802
ESCALADE 03 Electronic Control Module; (LH front under battery), PCM
SSR 03 Electronic Control Module; (next to air box)
SIERRA 2500 PICKUP 03 Electronic Control Module; (LH front under battery), gasoline, 6.0L
SIERRA DENALI 07 Electronic Control Module; classic style (creased door skin), (LH front under battery)
SILVERADO 3500 PICKUP 03 Electronic Control Module; (LH front under battery), gasoline, 6.0L
SUBURBAN 1500 05-06 Electronic Control Module; (LH front under battery)
TRAILBLAZER EXT 03 Electronic Control Module; 5.3L (next to air box)
SILVERADO 1500 PICKUP 05-06 Electronic Control Module; (LH front under battery), w/o hybrid option; w/o 4.3L
SILVERADO 1500 PICKUP 07 Electronic Control Module; classic style (creased door skin), (LH front under battery), w/o hybrid option; w/o 4.3L
SILVERADO 3500 PICKUP 07 Electronic Control Module; classic style (creased door skin), (LH front under battery), gasoline, 6.0L
YUKON XL 1500 05-06 Electronic Control Module; (LH front under battery)
ESCALADE EXT 05-06 Electronic Control Module; (LH front under battery)
SIERRA 1500 PICKUP 05-06 Electronic Control Module; (LH front under battery), w/o hybrid option; w/o 4.3L
SUBURBAN 2500 05-06 Electronic Control Module; (LH front under battery), 6.0L
HUMMER H2 03 Electronic Control Module; (LH front under battery)
SIERRA 2500 PICKUP 07 Electronic Control Module; classic style (creased door skin), (LH front under battery), gasoline, 6.0L
SIERRA 3500 PICKUP 07 Electronic Control Module; classic style (creased door skin), (LH front under battery), gasoline, 6.0L
SIERRA DENALI 04 Electronic Control Module; (LH front under battery), ID 12602802
SILVERADO 1500 PICKUP 03 Electronic Control Module; (LH front under battery), w/o 4.3L
ESCALADE EXT 03 Electronic Control Module; (LH front under battery), PCM
SIERRA 3500 PICKUP 04 Electronic Control Module; (LH front under battery), gasoline, 6.0L, ID 12602802
SILVERADO 2500 PICKUP 04 Electronic Control Module; (LH front under battery), gasoline, 6.0L, ID 12602802
YUKON XL 2500 03 Electronic Control Module; (LH front under battery), 6.0L
Choosing the right part is crucial. This programmed GM 12582605 PCM is compatible with the service numbers 89017750, 12582605, 12589463, 12602802, 89017734, and 28042802.
Frequently Asked Questions
What is a PCM and what does it do?
The Powertrain Control Module (PCM), also called the Engine Control Module (ECM), is a powerful computer that controls nearly every aspect of your vehicle’s engine and transmission. It manages fuel injection, ignition timing, emissions systems, and shift points to ensure optimal performance, fuel economy, and reliability.
Is this part ready to install when I receive it?
Yes. Because we program the module using the VIN you provide, it is ready for installation upon arrival. In most cases, no further programming is required. For some vehicles, a simple security relearn procedure may be necessary, which can typically be done without special tools.
Where do I provide my VIN?
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 ship your part until we receive the VIN.
How do I know if my original PCM is bad?
Common signs include a persistent check engine light (especially with P0600-series codes), unexplained poor performance, rough idle, stalling, and transmission shifting problems. A professional diagnosis is always recommended, but these symptoms strongly point to a failing PCM.
Will this fix my specific problem?
If your vehicle’s issues have been correctly diagnosed as a faulty PCM, this part is the solution. It is designed to resolve all issues directly caused by the failure of the original engine computer.