2009-2010 G3 Engine Control Module ECM 12621466

Restore Peak Performance Instantly

Get your vehicle running smoothly again with this pre-programmed Engine Control Module. It’s flashed with the latest GM software for your specific VIN, ensuring a perfect, plug-and-play fit. Skip the expensive dealership programming and order today!

$209.95

+11.99 USPS Priority Shipping

Availability: In stock



SKU: 590-01738-3 Categories: ,
Guaranteed Safe Checkout

Is Your Vehicle Running Rough? It Could Be The ECM.

If your Pontiac G3, Chevy Aveo, or Cruze is experiencing frustrating issues like stalling, poor fuel economy, or an illuminated Check Engine Light that won’t go away, the root cause is often a failing Engine Control Module (ECM). As the central computer for your engine, the ECM manages everything from fuel injection and ignition timing to emissions controls. When it begins to fail, it can cause a cascade of performance problems that can be difficult to diagnose and leave you stranded. Don’t let a faulty computer dictate your vehicle’s reliability. This direct-fit ECM is the definitive solution to restore your car’s performance and peace of mind.

From the Diagnostic Bay
A customer brought in their 2011 Chevy Aveo with a complaint of intermittent stalling at stoplights and a persistent P0606 (ECM Processor Fault) code. We checked all the basics—wiring, grounds, power feeds—and everything looked solid. The symptoms were erratic, making it a real head-scratcher. Suspecting an internal ECM failure, we swapped in a pre-programmed module matched to their VIN. The change was immediate. The car started instantly, idled smoothly, and the stalling issue was completely gone. The customer was thrilled to have their reliable daily driver back without a costly trip to the dealership for diagnostics and programming. It’s a classic case of how a failing computer can mimic a dozen other problems.

Symptoms of a Failing Engine Control Module

  • ✔ Persistent Check Engine Light (CEL) illumination
  • ✔ Engine stalling, stumbling, or misfiring
  • ✔ Difficulty starting the vehicle or a no-start condition
  • ✔ Noticeable decrease in fuel efficiency
  • ✔ Poor acceleration or inconsistent power delivery
  • ✔ Harsh or erratic automatic transmission shifting
  • ✔ Communication errors with diagnostic scan tools

The Simple, Plug-and-Play Solution for Your GM Vehicle

Replacing an ECM has traditionally been a complicated and expensive process, requiring a trip to the dealership for specialized programming. We eliminate that hassle. This module arrives at your door fully programmed with the latest official GM software updates, specifically calibrated to your vehicle’s unique Vehicle Identification Number (VIN). This means no extra fees, no appointments, and no towing. The installation is straightforward, allowing you to get your vehicle back on the road quickly and confidently. This is the most efficient and cost-effective way to replace your faulty 2009-2010 G3 Engine Control Module.

Guaranteed Compatibility

This ECM is a direct replacement for a wide range of GM vehicles and is compatible with multiple part numbers, ensuring a perfect fit and function. Simply provide your VIN after purchase, and we handle the rest.

  • Compatible Part Numbers: 12679199, 12642927, 12636386, 12621466, 12630789
  • Fits The Following Models:
    • 2011-2012 Chevrolet Cruze (1.8L)
    • 2009-2011 Chevrolet Aveo
    • 2013 Chevrolet Spark
    • 2009-2010 Pontiac Wave
    • 2013-2014 Chevrolet Trax (1.8L)
    • 2012 Chevrolet Sonic (1.8L)
    • 2009-2010 Pontiac G3

By purchasing this pre-programmed 2009-2010 G3 Engine Control Module, you are not just buying a part; you are buying a complete, ready-to-install solution that restores your vehicle’s factory performance and reliability.

Frequently Asked Questions

Do I need to get this ECM programmed by a dealer?

No. This Engine Control Module comes fully programmed to your vehicle’s specific VIN. It is ready for installation right out of the box, saving you a trip to the dealership and additional programming fees.

What is a VIN and why do you need mine?

The VIN (Vehicle Identification Number) is a unique 17-digit code for your car. We use it to load the exact factory software and calibrations for your vehicle’s specific options, engine, and transmission, ensuring perfect compatibility and performance.

Will this fix my check engine light?

If the check engine light is caused by a faulty ECM (with codes like P0601, P0606, etc.), then this replacement part will resolve the issue. It’s always recommended to have a proper diagnosis to confirm the ECM is the point of failure.

Where is the ECM located on my 2009 Pontiac G3?

On most vehicles like the Pontiac G3 and Chevy Aveo, the ECM is typically located in the engine bay, often mounted to the firewall, inner fender, or near the battery. Always disconnect the battery before attempting to replace it.

Is any other setup required after installation?

In some cases, a security relearn procedure (also known as a key relearn) may be necessary. This is a simple procedure that can typically be done without special tools and instructions can be easily found online for your specific model.

Conditions & Options

Programmed to your VIN GM: 12621466

Year
Genuine OEM

Yes

Interchange part number

Condition

Seller refurbished

Model

2010-g3

Make

Year

2011, 2012

Brand

GM

Manufacturer Part Number

MPN

12621466

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