Restore Your Vehicle’s Performance and Reliability
Are you dealing with frustrating issues like a persistent check engine light, poor fuel economy, erratic shifting, or a car that won’t start at all? These are classic signs of a failing Powertrain Control Module (PCM). Don’t let a faulty computer keep your daily driver off the road. This professionally programmed PCM is the simple, reliable, and cost-effective solution to get your 2005-2006 Chevrolet Cobalt, Pontiac Pursuit, or Chevrolet HHR running like new again.
Common Symptoms & Your Solution
A failing PCM can cause a wide range of problems that can be difficult to diagnose. If you’re experiencing any of the following, a faulty module is the likely culprit:
- Check Engine Light (CEL) with codes like P0601, P0606, or U0100
- No-Start or Hard-Start Condition where the engine cranks but won’t fire up
- Poor Engine Performance including stalling, rough idling, and hesitation
- Reduced Fuel Economy for no apparent reason
- Erratic Automatic Transmission Shifting
This module is the definitive solution, arriving at your door pre-programmed specifically for your vehicle. This is not a generic, one-size-fits-all part. We use your Vehicle Identification Number (VIN) to flash the unit with the latest, most stable software updates from GM, ensuring perfect communication between your engine, transmission, and other onboard systems. This is the quality and precision you need for a lasting repair.
Features & Benefits
- ✔ Plug & Play Installation: Arrives fully programmed to your vehicle’s VIN. No expensive dealership programming required.
- ✔ Updated GM Software: We flash the module with the newest software available to correct original factory flaws and improve performance.
- ✔ Guaranteed Compatibility: A direct-fit replacement for service numbers 12599714, 12589998, 12597329, 12600882, and more.
- ✔ Restores Original Performance: Solves common issues like rough idle, poor mileage, and CEL codes, bringing your car back to factory specifications.
- ✔ Cost-Effective Solution: Get the reliability of a dealership-level repair without the high cost and hassle.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: Why a Programmed Module Matters
As a technician, I’ve seen countless car owners try to save a few dollars by installing a used PCM from a salvage yard. This almost never works. A vehicle’s PCM is like its brain, and it’s coded specifically to the VIN and options of the car it came from. Installing a mismatched one can cause more problems than it solves, from immobilizer issues to incorrect transmission behavior. Our Programmed PCM for Cobalt Pursuit HHR eliminates that entire gamble. We handle the complex programming so you receive a component that is truly ready to install, saving you time, money, and the headache of a failed repair.
Frequently Asked Questions
How do I provide my vehicle’s VIN?
After you complete your purchase, simply reply to your order confirmation email with your 17-digit Vehicle Identification Number (VIN). We cannot program and ship your module without it.
Will I need to do any additional programming after installation?
No. This module is programmed to your VIN for a plug-and-play installation. In some cases, a CASE relearn or security relearn procedure may be necessary, which can be performed with a capable scan tool or by a qualified mechanic.
Is this a new or used part?
This is a high-quality, inspected, and tested component that has been professionally prepared for your vehicle. Each unit is verified to meet or exceed original equipment performance and is loaded with vehicle-specific software.
My original part number isn’t listed, will this still work?
This module replaces several service numbers, including 12599714, 12589998, 12597329, 12600882, 12600883, 12605766, and 12605765. As long as your vehicle is a 2005-2006 Cobalt, Pursuit, or HHR with the specified engine, this is the correct part, even if your original number differs.
What is the difference between a PCM, ECM, and ECU?
These terms are often used interchangeably. PCM (Powertrain Control Module) typically controls both the engine and transmission. ECM (Engine Control Module) or ECU (Engine Control Unit) usually refers to a computer that only controls engine functions. For your vehicle, this unit functions as the central PCM.