Restore Peak Performance to Your 2005 Corvette
Is your 2005 C6 Corvette suffering from frustrating issues like a persistent check engine light, poor fuel economy, stalling, or a no-start condition? These are classic signs of a failing Engine Control Module (ECM), the electronic brain of your vehicle. A faulty ECM can cripple your car’s performance and leave you stranded. This direct-replacement Engine Control Module, part number 12596771, is the definitive solution to get your Corvette, GTO, SSR, or other compatible GM vehicle back on the road with reliability and confidence.
The ECM is responsible for managing critical engine functions, including fuel injection, ignition timing, emissions systems, and transmission shifting. When it begins to fail, the intricate balance of performance and efficiency is lost. Our modules are meticulously tested and prepared to restore that factory-spec operation. The most significant advantage we offer is our professional programming service. Before this module ships, we flash it with the latest official GM software, specifically matched to your vehicle using the VIN you provide. This means no expensive trips to the dealership for programming, no complex tools required—just a straightforward installation.
From the Diagnostic Bay
We once had a 2005 GTO come into the shop with intermittent stalling and a host of random trouble codes. The owner had already replaced the alternator, battery, and a few sensors, chasing what he thought were electrical gremlins. After hours of diagnostics, we traced the issue back to a failing ECM. The internal processor was intermittently failing under heat, causing it to send erratic signals to the rest of the car. A new, correctly programmed ECM solved every single issue instantly. It’s a powerful reminder that the ECM is the foundation of the entire powertrain system, and when it’s not right, nothing else will be.
Why Choose Our Programmed 2005 Corvette ECM?
Choosing the right replacement part is crucial. Our commitment is to provide a seamless and effective solution. This isn’t just a part in a box; it’s a comprehensive fix. We handle the complex programming so you can focus on the simple installation. This module is also a direct replacement for several other service numbers, including 12578554, 12597191, 12597883, and 19210071, ensuring wide compatibility across the GM platform for that model year. By providing us with your VIN at checkout, you guarantee that the module you receive is perfectly configured for your vehicle’s specific options and systems, including the Vehicle Anti-Theft System (VATS).
Is Your Vehicle Showing Signs of ECM Failure?
- ✔ Persistent Check Engine Light (CEL) with various trouble codes.
- ✔ Engine stalling, stumbling, or hesitating during acceleration.
- ✔ Unexplained drop in fuel mileage.
- ✔ Rough or erratic idling.
- ✔ Difficulty starting the engine or a complete no-start condition.
- ✔ Automatic transmission shifting issues or harsh shifts.
- ✔ Loss of communication with diagnostic scan tools.
Guaranteed Compatibility and Simple Installation
This Engine Control Module is a confirmed fit for a range of 2005 GM vehicles. Please verify your vehicle is on the list below. The key to a successful installation is our VIN programming service. Once you install the module, your vehicle’s systems will recognize it, and in most cases, you will be ready to go. A security relearn procedure may be necessary, which is a simple process that can be done without any special tools.
This part will fit these makes and models with these options:
- CORVETTE 05 Electronic Control Module; (RH engine compartment)
- GTO 05 Electronic Control Module; main (LH engine)
- SSR 05 Electronic Control Module; (next to air box)
- ENVOY 05 Electronic Control Module; 5.3L (LH engine)
- ENVOY XL 05 Electronic Control Module; (LH engine), 5.3L
- ENVOY XUV 05 Electronic Control Module; (LH engine), 5.3L
- TRAILBLAZER EXT 05 Electronic Control Module; (LH engine), 5.3L
- RAINIER 05 Electronic Control Module; (LH engine), 5.3L
- ISUZU ASCENDER 05 Electronic Control Module; 5.3L (LH engine)
- SAAB 9-7X 05 Electronic Control Module; (LH engine), 8 cylinder
Frequently Asked Questions
Do I need to send you my old ECM?
No, there is no core charge or need to send us your old module. This is a direct purchase. We program this replacement ECM based on the VIN you provide.
What is VIN programming and why is it necessary?
VIN programming involves loading the correct GM-certified software and calibrations for your specific vehicle into the ECM. This ensures all components, from the engine and transmission to the anti-theft system (VATS), function exactly as the manufacturer intended. Without it, the vehicle will not start or run correctly.
Is this part difficult to install?
The physical installation is typically straightforward. It involves disconnecting the battery, unplugging the electrical connectors from the old ECM, unbolting it, and then installing the new one in its place. Because we pre-program the module, you avoid the most difficult part of the process. Some vehicles may require a simple key-cycle security relearn procedure, which we can provide instructions for.
How 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 this as a note during checkout or send it to us in a message referencing your order number. We cannot ship the part until we have your VIN.
Will this fix my check engine light?
If the check engine light and associated diagnostic trouble codes are caused by a faulty ECM, this part will resolve the issue. However, it’s essential to ensure the problem has been properly diagnosed. This module will not fix problems caused by other faulty sensors or mechanical issues.