Restore Peak Performance to Your Saturn Sky
Is your 2008-2010 Saturn Sky suffering from baffling electrical issues, a persistent check engine light, or poor engine performance? The Electronic Control Module (ECM), the vehicle’s central computer, is often the culprit. It governs critical functions like fuel mixture, ignition timing, and transmission shifting. When it fails, it can cause a cascade of problems that are frustrating to diagnose. This replacement ECM, part number 12597125, is the definitive solution to get your sports car running smoothly and reliably again.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We flash the module with the latest GM-certified software updates specifically for your vehicle. All you need to do is provide your Vehicle Identification Number (VIN) during checkout, and our technicians will handle the programming. This ensures that the ECM communicates perfectly with all other modules in your Sky, eliminating compatibility issues and error codes that can arise from using a generic, unprogrammed unit.
From the Diagnostic Bay
We had a 2009 Saturn Sky come into the shop with a complaint of intermittent stalling at stoplights and a random P0606 (ECM Processor Fault) code. The owner had already replaced the spark plugs and an O2 sensor with no luck. After hooking up our diagnostic scanner, we noticed the live data stream for the fuel trims would occasionally freeze just before the engine would stumble. This pointed directly to a processing error within the ECM. We installed one of these VIN-programmed modules, performed the quick security relearn, and the car ran perfectly. The owner was thrilled to have his weekend cruiser back without the fear of it dying in traffic. It’s a classic case where shotgunning parts doesn’t work; you need to address the core problem with the right, correctly prepared component.
Common Symptoms of a Failing 2008-2010 Sky ECM
- ✔ Persistent Check Engine Light (CEL) that won’t clear.
- ✔ Unexplained engine stalling or rough idling.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Engine hesitation or misfires during acceleration.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Communication error codes (U-codes) when scanned.
- ✔ The vehicle cranks but refuses to start.
The Importance of VIN Programming
Your Saturn Sky has specific parameters related to its engine, transmission, and factory options. VIN programming ensures this replacement ECM is a perfect digital match for your car. It loads the correct fuel maps, transmission strategies, and security information, making the installation process as seamless as possible. Skipping this step is a recipe for ongoing issues and a car that never quite runs right. We take the guesswork out of the repair by delivering a module that is truly ready for your vehicle.
Installation Process
Once you receive your pre-programmed 2008-2010 Sky ECM, the physical installation is straightforward. The module is located on the LH front frame rail. After swapping the hardware, you may need to perform a simple security relearn procedure, which pairs the new ECM to your vehicle’s anti-theft system. This procedure can typically be done without special tools and instructions can be readily found online or in a service manual.
This Module is a Direct Replacement for the Following Service Numbers:
12612397, DL216140, 12594750, 12597125, 12629019, 12635902, 12611549. Ordering this part ensures you receive a compatible unit for any of these original numbers.
MALIBU 10 Electronic Control Module; 3.5L
EXPRESS 1500 VAN 08-09 Electronic Control Module; (LH rear engine compartment), 4.3L
MALIBU 08 Electronic Control Module; classic style (emblem in grille), 2.2L
SIERRA 1500 PICKUP 09 Electronic Control Module; (LH front engine compartment), w/o hybrid option; w/4.3L
COBALT 08 Electronic Control Module; (LH front engine compartment), 2.4L (VIN B, 8th digit, 4-146)
COBALT 07-08 Electronic Control Module; (LH front engine compartment), 2.2L (VIN F, 8th digit, 4-134)
MALIBU 11-12 Electronic Control Module; 2.4L
MALIBU 08 Electronic Control Module; new style (emblem in bumper cover), 2.4L, w/o hybrid
AURA 08-09 Electronic Control Module; (RH firewall), 2.4L, w/o hybrid
HHR 07-11 Electronic Control Module; (LH rear engine compartment), 2.2L
SIERRA 1500 PICKUP 08 Electronic Control Module; (LH front under battery), w/4.3L
SOLSTICE 08-10 Electronic Control Module; (LH front frame rail), 2.4L
COBALT 09 Electronic Control Module; (LH front engine compartment), 2.2L (VIN H, 8th digit, 4-134)
HHR 08-11 Electronic Control Module; (LH rear engine compartment), 2.4L
LUCERNE 09-11 Electronic Control Module; (lower part of air cleaner box), 3.9L
MALIBU 07 Electronic Control Module; 2.2L
VUE 08-09 Electronic Control Module; 2.4L, VIN P (8th digit, opt LE5)
VUE 10 Electronic Control Module; 2.4L
G6 08-09 Electronic Control Module; (LH front engine compartment), 2.4L
IMPALA 10-11 Electronic Control Module; (lower part of air cleaner box)
SIERRA 1500 PICKUP 07 Electronic Control Module; new style (smooth door skin), (LH front under battery), w/4.3L
COBALT 10 Electronic Control Module; (LH front engine compartment), 2.2L (VIN 5, 8th digit, 4-134)
MALIBU 09-10 Electronic Control Module; 2.4L, w/o hybrid
G6 10 Electronic Control Module; (LH front engine compartment)
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
G5 07 Electronic Control Module; (LH front engine compartment), 2.2L (VIN F, 8th digit, 4-134)
SILVERADO 1500 PICKUP 07 Electronic Control Module; new style (smooth door skin), (LH front under battery), w/4.3L
G5 08-10 Electronic Control Module
SAVANA 1500 VAN 08-09 Electronic Control Module; (LH rear engine compartment), 4.3L
Frequently Asked Questions
Do I need to have this ECM programmed?
No, we handle the programming for you before shipment. Simply provide your vehicle’s VIN when you place your order, and it will arrive ready to be installed with the latest GM software for your specific car.
What information do you need from me?
We only need your 17-digit Vehicle Identification Number (VIN). You can typically find this on your vehicle’s registration, insurance card, or on a plate on the driver’s side dashboard visible through the windshield.
Will this fix my car’s problem for sure?
This ECM will correct any issues directly caused by a faulty engine computer. While the symptoms listed are very common for ECM failure, we always recommend a proper diagnosis by a qualified mechanic to confirm the ECM is the root cause before ordering.
Is any additional setup required after installation?
In many cases, you will need to perform a security relearn procedure (also known as a key relearn or anti-theft relearn). This process syncs the new ECM with your car’s keys and can usually be done in your driveway in about 30 minutes without any special tools. Some vehicles may also require a Crankshaft Variation Relearn (CASE relearn), which requires a diagnostic scan tool.
Where is the ECM located on my 2008-2010 Saturn Sky?
The Electronic Control Module on the Saturn Sky is located on the driver’s side (LH) front frame rail in the engine compartment.