Restore Your Saturn’s Performance and Reliability
Is your vehicle suffering from perplexing issues like a persistent check engine light, erratic shifting, or a frustrating no-start condition? These are classic signs that the brain of your engine—the Powertrain Control Module (PCM)—is failing. Don’t let a faulty computer keep you off the road. This replacement PCM, service number 12597125, is the definitive solution to bring back the smooth, predictable performance you depend on. We take the guesswork out of the repair by pre-programming the module to your vehicle’s specific VIN with the latest GM software updates, ensuring a seamless, plug-and-play installation.
Warning Signs and How to Overcome Them
A failing PCM can manifest in numerous ways, often mimicking other component failures. If you’re experiencing any of the following, this module is your likely solution:
- ✔ Persistent Check Engine Light with codes like P0601, P0602, P0606, or U-series communication codes.
- ✔ Unexplained stalling or rough idling that makes driving a chore.
- ✔ Harsh or delayed transmission shifting.
- ✔ A noticeable drop in fuel economy.
- ✔ The engine cranks but refuses to start.
- ✔ Other modules on the vehicle are not communicating with the PCM.
From the Technician’s Bench: A Customer’s Comeback
I remember a customer with a Chevy Malibu who had spent months chasing what he called ‘automotive ghosts.’ His car would stall randomly at red lights, the gauges would flicker, and two different shops had given him conflicting diagnoses. He was ready to sell the car for scrap. We identified a failing PCM. After installing one of our VIN-programmed modules, he called a week later just to say thanks. He’d taken his family on a weekend road trip without a single worry—the first time in over a year. That’s the peace of mind a proper repair provides.
Guided Installation for a Confident Fix
We’ve made this repair as straightforward as possible. Since the module arrives programmed to your car, there’s no need for an expensive trip to the dealership. Here’s how simple it is:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the Old Module: On the 2008-2009 Saturn Aura, the PCM is typically located on the right-hand (passenger) side of the firewall in the engine bay. Consult your owner’s manual for the exact location on other models.
- Perform the Swap: Carefully unplug the wiring harness connectors from the old PCM. Unbolt the module from its mounting bracket and set it aside. Mount the new module in its place.
- Reconnect and Power Up: Securely plug the wiring harnesses into your new PCM. You’ll hear and feel a distinct click. Reconnect the negative battery terminal.
- Final Steps: Your vehicle may need to complete a brief idle relearn procedure. Simply start the car and let it run for a few minutes. Your check engine light should be off, and your vehicle restored.
Verified Compatibility for Your 2008-2009 Aura PCM
This module is a direct replacement for service number 12597125 and is also compatible with 12612397, 126140, 12594750, 12629019, 12635902, and 12611549. It is guaranteed to fit the following makes and models:
- AURA 08-09 Electronic Control Module; (RH firewall), 2.4L, w/o hybrid
- COBALT 07-08 Electronic Control Module; (LH front engine compartment), 2.2L (VIN F)
- COBALT 08 Electronic Control Module; (LH front engine compartment), 2.4L (VIN B)
- COBALT 09 Electronic Control Module; (LH front engine compartment), 2.2L (VIN H)
- COBALT 10 Electronic Control Module; (LH front engine compartment), 2.2L (VIN 5)
- EXPRESS 1500 VAN 08-09 Electronic Control Module; (LH rear engine compartment), 4.3L
- G5 07 Electronic Control Module; (LH front engine compartment), 2.2L (VIN F)
- G5 08-10 Electronic Control Module
- G6 08-09 Electronic Control Module; (LH front engine compartment), 2.4L
- G6 10 Electronic Control Module; (LH front engine compartment)
- HHR 07-11 Electronic Control Module; (LH rear engine compartment), 2.2L
- HHR 08-11 Electronic Control Module; (LH rear engine compartment), 2.4L
- IMPALA 10-11 Electronic Control Module; (lower part of air cleaner box)
- LUCERNE 09-11 Electronic Control Module; (lower part of air cleaner box), 3.9L
- MALIBU 07 Electronic Control Module; 2.2L
- MALIBU 08 Electronic Control Module; classic style (emblem in grille), 2.2L
- MALIBU 08 Electronic Control Module; new style (emblem in bumper cover), 2.4L, w/o hybrid
- MALIBU 09-10 Electronic Control Module; 2.4L, w/o hybrid
- MALIBU 10 Electronic Control Module; 3.5L
- MALIBU 11-12 Electronic Control Module; 2.4L
- SAVANA 1500 VAN 08-09 Electronic Control Module; (LH rear engine compartment), 4.3L
- SIERRA 1500 PICKUP 07 Electronic Control Module; new style (smooth door skin), (LH front under battery), w/4.3L
- SIERRA 1500 PICKUP 08 Electronic Control Module; (LH front under battery), w/4.3L
- SIERRA 1500 PICKUP 09 Electronic Control Module; (LH front engine compartment), w/o hybrid option; w/4.3L
- SILVERADO 1500 PICKUP 07 Electronic Control Module; new style (smooth door skin), (LH front under battery), w/4.3L
- SILVERADO 1500 PICKUP 08 Electronic Control Module; (LH front under battery), w/4.3L
- SILVERADO 1500 PICKUP 09 Electronic Control Module; (LH front engine compartment), w/o hybrid option; w/4.3L
- SKY 08-10 Electronic Control Module; (LH front frame rail), 2.4L
- SOLSTICE 08-10 Electronic Control Module; (LH front frame rail), 2.4L
- VUE 08-09 Electronic Control Module; 2.4L, VIN P (8th digit, opt LE5)
- VUE 10 Electronic Control Module; 2.4L
Frequently Asked Questions
Frequently Asked Questions
What exactly is VIN programming?
VIN programming is the process where we load your vehicle’s unique Vehicle Identification Number (VIN) and the latest GM-certified software onto the PCM. This ensures the module communicates perfectly with your car’s specific systems, including the engine, transmission, and security features, making it a true plug-and-play part.
Will I need to do anything after installation?
In most cases, no additional steps are required. The module is ready to go. Some vehicles may require a security relearn or crankshaft position sensor relearn, which can often be done without special tools. We include instructions for these simple procedures if they apply to your vehicle.
How do I provide my VIN?
After you complete your purchase, you will receive an email prompting you for your vehicle’s 17-digit VIN. You can also add it to the ‘notes’ section during checkout. We cannot ship your part until we receive this information, as the programming is specific to your car.
Is this a new or a used part?
This is a professionally inspected and verified original equipment part that has been meticulously tested to meet or exceed factory specifications. It provides the durability and compatibility of an OEM part, complete with the latest software for optimal performance.
What if my exact service number isn’t on the list?
The service numbers listed are the most common, but GM often has many compatible numbers. If your part number is different, please contact us with your vehicle’s VIN and the number from your original module. Our experts can verify compatibility for you.