Restore Peak Performance to Your Vehicle with a VIN-Programmed Engine Computer
Is your 2008-2009 Saturn Aura, or another compatible GM vehicle, suffering from perplexing issues like a persistent check engine light, poor fuel economy, rough idling, or a no-start condition? These are classic signs of a failing Powertrain Control Module (PCM), the electronic brain of your vehicle’s engine and transmission. This replacement engine computer, corresponding to service number 12612397, is the definitive solution to restore your vehicle’s reliability and drivability.
The PCM is one of the most critical components in a modern vehicle. It precisely manages ignition timing, fuel injector pulse width, transmission shift points, and emissions systems. When it begins to fail, it can cause a cascade of problems that are often misdiagnosed, leading to costly and unnecessary repairs. By replacing your faulty unit with our expertly prepared module, you are addressing the root cause of these electronic issues.
From the Diagnostic Bay
We had a 2008 Chevy Cobalt come into the shop with an intermittent no-start and stalling issue that had stumped two other technicians. The car would run fine for days, then suddenly refuse to start, with no communication to the scan tool. After hours of chasing wires, we focused on the PCM. By applying a little heat from a heat gun to the module, we could replicate the failure every single time. A faulty processor on the main board was failing when it got warm. A new, correctly programmed PCM like this one had the car running perfectly within the hour, saving the customer from further diagnostic headaches.
The Critical Importance of a Proper Aura PCM Replacement
Choosing the right Aura PCM Replacement is not just about matching part numbers; it’s about ensuring the software inside is a perfect match for your vehicle’s specific configuration. We take the guesswork out of the process. Upon purchase, you simply provide us with your vehicle’s VIN. Our technicians then flash the module with the latest, most up-to-date software directly from GM. This ensures that all factory parameters, security information, and performance maps are correct for your exact vehicle, making installation as seamless as possible.
Common Symptoms of a Failing PCM
- ✔ Persistent Check Engine Light (CEL) with various trouble codes.
- ✔ Engine stalling, misfiring, or running rough.
- ✔ Unexplained drop in fuel efficiency.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Vehicle fails to start, even with a good battery and starter.
- ✔ Loss of communication with diagnostic scan tools.
- ✔ Failure to pass state emissions testing.
Installation and Setup
This module is a direct physical replacement for the original unit. Once installed, many vehicles will start and run immediately. However, please be aware that some GM vehicles may require a security relearn procedure (also known as a Passlock or anti-theft relearn) to allow the engine to start. This procedure can typically be performed by the owner without special tools and instructions are widely available online or in service manuals. In some cases, a Crankshaft Variation Relearn (CASE) may be needed, which requires a compatible scan tool.
Frequently Asked Questions
What information do I need to provide for programming?
After you complete your purchase, we will need the 17-digit Vehicle Identification Number (VIN) from your vehicle. This is typically found on the driver’s side dashboard (visible through the windshield) or on the driver’s door jamb sticker.
Is this module difficult to install?
The physical installation is straightforward for anyone with basic mechanical skills. It involves disconnecting the battery, unplugging the electrical connectors, and unbolting the old module to swap in the new one. The only additional step may be a security relearn procedure, which varies by model.
Will this part fit other vehicles besides the Saturn Aura?
Yes. This PCM, service number 12612397, is compatible with a wide range of General Motors vehicles including models of the Chevy Malibu, Cobalt, HHR, Silverado, GMC Sierra, Pontiac G6, and more. Please check the detailed fitment list on this page to confirm compatibility with your specific year, make, and model.
Will this PCM fix my vehicle’s problem for sure?
This module will correct any issues directly caused by a faulty PCM. While the symptoms listed are very common for PCM failure, they can also be caused by other faulty sensors or wiring. Proper vehicle diagnosis is always recommended before ordering to ensure you are purchasing the correct part for your needs.
Is this a new or used part?
This is a genuine, factory OEM part that has been thoroughly inspected, tested, and restored to its original operational specifications. It is loaded with new, vehicle-specific software to ensure it functions as intended from the factory.