Is Your Vehicle Running Rough, Stalling, or Showing a Check Engine Light?
A faulty Powertrain Control Module (PCM), often called the engine computer or ECM, could be the culprit. As the central command center for your engine, the PCM controls critical functions like fuel mixture, ignition timing, and transmission shifting. When it starts to fail, it can cause a cascade of frustrating and unpredictable issues, from poor fuel economy to a complete no-start condition. Don’t let a bad computer keep you off the road. This replacement PCM is the reliable, straightforward solution to restore your vehicle’s performance and dependability.
From the Diagnostic Bay
We had a 2009 Chevy Cobalt come into the shop that was driving the owner crazy. It would randomly stall at stoplights and had a persistent P0606 (PCM Processor Fault) code that wouldn’t clear. We checked all the wiring and grounds, which were fine. After swapping in one of our pre-programmed PCMs matched to the customer’s VIN, the car fired right up and ran perfectly. The random stalling vanished, and the check engine light stayed off. It’s a classic case where the internal logic of the original computer had simply failed, and a direct replacement was the only correct fix.
Common Symptoms of a Failing PCM
- ✔ Check Engine Light is on with communication-related or internal processor fault codes.
- ✔ Unexplained drop in fuel efficiency.
- ✔ Engine stalling, stumbling, or hesitating during acceleration.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ The vehicle cranks but refuses to start.
- ✔ Failure to pass an emissions test.
The Plug-and-Play Solution for Your 2007-2010 G5 PCM
Getting your car back to factory-spec operation shouldn’t be complicated. That’s why we offer this PCM fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). When you place your order, simply provide us with your VIN, and our technicians will flash the module with the latest, most up-to-date software directly from GM. This critical step ensures that the computer communicates perfectly with your car’s existing systems, eliminating the need for an expensive trip to the dealership for programming. This unit is a direct replacement for service number 12597125 and several others, making it a versatile fix for a wide range of GM vehicles.
This module is compatible with a broad selection of General Motors cars and trucks, including the Chevrolet Cobalt, HHR, Malibu, Silverado, GMC Sierra, Pontiac G6, Saturn Aura, and more. Please verify your vehicle’s compatibility using the detailed fitment list provided.
Frequently Asked Questions
What is a PCM and what does it do?
The Powertrain Control Module (PCM) is your vehicle’s main computer. It controls all aspects of engine and transmission operation to ensure optimal performance, fuel economy, and emissions. It’s the brain behind the entire powertrain.
Is this part truly plug-and-play?
Yes! Because we program the module to your specific VIN before shipping, it arrives ready to be installed. In most cases, you will not need any further programming. However, some vehicles may require a security relearn or crank position sensor relearn procedure, which can typically be done without special tools. Instructions are widely available online for this simple process.
How do I provide my vehicle’s VIN?
You can add your 17-digit VIN in the notes section during checkout. If you forget, don’t worry! We will contact you via email to retrieve it before we program and ship your part. We cannot ship the module without your VIN.
How do I find my original part number?
Your original part number is printed on a sticker on the PCM itself. This unit replaces multiple service numbers, including 12597125, 12612397, 12594750, and others listed in the description. Matching one of these numbers confirms compatibility.
Will this fix my vehicle’s specific problem?
This PCM will correct issues directly caused by a faulty computer. While the symptoms listed are common indicators of PCM failure, it’s essential to ensure your vehicle has been properly diagnosed. Problems with wiring, sensors, or other modules can sometimes mimic PCM failure.