Is Your 2005 GM Vehicle Running Rough? It Could Be The ECM.
The Engine Control Module (ECM), often called the engine’s brain, is the central command center for your vehicle’s performance, fuel economy, and emissions. When it begins to fail in vehicles like the 2005 Chevrolet SSR, Corvette, or GMC Envoy, it can cause a cascade of confusing and frustrating problems. From a simple check engine light to a vehicle that won’t start at all, a faulty ECM can be difficult to diagnose. This direct-replacement Engine Control Module, part number 12597883, is the definitive solution to restore your vehicle’s factory performance and reliability.
Symptoms of a Failing Engine Control Module
- ✔ Check Engine Light is on or flashes intermittently.
- ✔ Engine stalling or shutting off while driving.
- ✔ Noticeable decrease in fuel economy.
- ✔ Car won’t start, even with a good battery and starter.
- ✔ Rough idling, misfires, or hesitation during acceleration.
- ✔ Automatic transmission shifting erratically or harshly.
- ✔ Unexplained warning lights on the dashboard (e.g., ABS, Traction Control).
- ✔ Failure to pass state emissions testing.
Why Choose Our Pre-Programmed 2005 SSR Engine Module?
Don’t settle for a generic, unprogrammed module that requires an expensive trip to the dealership. Our process is designed for the DIY mechanic and professional alike. We take your vehicle’s unique Vehicle Identification Number (VIN) and program this module with the latest, most stable software updates directly from GM. This ensures that it communicates perfectly with your vehicle’s other systems—the transmission control module, the body control module, and the anti-lock brake system—right out of the box. This is not just a replacement; it’s a restoration of your vehicle’s original electronic nervous system.
Guaranteed Fitment and Compatibility
This module is a direct replacement for several service numbers, ensuring broad compatibility across a range of popular 2005 GM models. Please verify your original part number or consult the fitment list below.
Compatible Service Numbers: 12578554, 12596771, 12597191, 12597883, 19210071
This part will fit these makes and models with these options:
- CHEVROLET CORVETTE 05: Electronic Control Module; (RH engine compartment)
- CHEVROLET SSR 05: Electronic Control Module; (next to air box)
- CHEVROLET TRAILBLAZER EXT 05: Electronic Control Module; (LH engine), 5.3L
- GMC ENVOY 05: Electronic Control Module; 5.3L (LH engine)
- GMC ENVOY XL 05: Electronic Control Module; (LH engine), 5.3L
- GMC ENVOY XUV 05: Electronic Control Module; (LH engine), 5.3L
- BUICK RAINIER 05: Electronic Control Module; (LH engine), 5.3L
- ISUZU ASCENDER 05: Electronic Control Module; 5.3L (LH engine)
- PONTIAC GTO 05: Electronic Control Module; main (LH engine)
- SAAB 9-7X 05: Electronic Control Module; (LH engine), 8 cylinder
By purchasing our 2005 SSR Engine Module, you are getting a component that is not only tested for functionality but is also loaded with the correct software for your exact vehicle configuration, ensuring a smooth installation process and a lasting repair.
Frequently Asked Questions
How do I provide my VIN for programming?
After you complete your purchase, you will receive an email with instructions, or you can simply add your VIN to the notes section during checkout. We cannot ship your module until we have your VIN.
Is this part difficult to install?
The physical installation is typically straightforward, involving disconnecting the battery, unplugging the electrical connectors, and unbolting the old module. However, after installation, some vehicles may require a security relearn procedure (often called a Passlock or VATS relearn) and a Crankshaft Variation Relearn (CASE relearn). Instructions for these procedures are widely available online or in service manuals.
Will this fix my vehicle’s problem for sure?
This module will correct any issues directly caused by a faulty ECM. While the symptoms listed are common for ECM failure, they can also be caused by other issues. We highly recommend a proper diagnosis by a qualified technician before ordering.
What if my original part number is not on the list?
If your part number is not listed in the compatible service numbers, please contact us with your VIN and original part number. We can verify compatibility and ensure you receive the correct part for your vehicle.
Is there a warranty?
Yes, all our programmed modules come with a standard warranty against defects in materials and workmanship. Please see our warranty page for complete details and duration.