Is Your 2006 Impala Running Rough? The ECM Might Be the Culprit.
If your 2006 Chevrolet Impala is experiencing frustrating issues like a persistent Check Engine Light, erratic engine behavior, stalling, or a complete no-start condition, the problem may lie with its electronic brain: the Engine Control Module (ECM). The ECM is the central command center for your vehicle’s engine, managing everything from fuel injection and ignition timing to emissions control and transmission shifting. When it fails, it can cause a cascade of problems that are often misdiagnosed, leading to wasted time and money on unnecessary parts.
This isn’t just a replacement part; it’s a complete solution. We provide a genuine GM Engine Control Module, service number 12630457, that is professionally programmed to your vehicle’s specific Vehicle Identification Number (VIN). This critical step ensures that the module communicates perfectly with all other systems in your Impala, restoring its original performance, fuel efficiency, and reliability. Don’t settle for a generic module that requires expensive dealer programming. Our plug-and-play solution gets you back on the road quickly and affordably.
From the Diagnostic Bay
We had a 2006 Impala 3.5L come into the shop with a complaint of intermittent stalling at stoplights and a check engine light with codes for multiple sensor circuits. The owner had already replaced the throttle body and a couple of sensors with no success. After hooking up our scanner and monitoring live data, we noticed the 5-volt reference signal was dropping out randomly, causing the sensors to report false readings. This is a classic sign of an internal ECM failure. Instead of continuing to chase phantom sensor issues, we installed a VIN-programmed ECM. After a quick security relearn procedure, the car ran perfectly. It’s a reminder that sometimes the component controlling everything is the one that needs attention.
Common Symptoms of a Failing 2006 Impala Engine Module
- ✔ Check Engine Light: The most common indicator, often with communication-related error codes (U-codes) or multiple, seemingly unrelated sensor codes.
- ✔ Engine Stalling or Misfiring: The engine may stall unexpectedly while driving or at idle, and you might experience rough running or misfires.
- ✔ No-Start Condition: The engine cranks but refuses to start, indicating a potential failure in ignition or fuel control managed by the ECM.
- ✔ Poor Fuel Economy: An improperly functioning ECM can’t efficiently manage the air-fuel mixture, leading to a noticeable drop in MPG.
- ✔ Reduced Engine Power: Your Impala may feel sluggish or unresponsive, as the ECM fails to optimize engine performance.
- ✔ Harsh or Incorrect Shifting: The ECM works with the Transmission Control Module (TCM), and a fault can lead to erratic automatic transmission behavior.
The Right Part, Programmed for Your Car
This Engine Control Module is a direct-fit replacement for a wide variety of GM vehicles, but this listing is tailored specifically for your 2006 Impala. The key to a successful repair is the programming. Upon purchase, you will need to provide us with your vehicle’s 17-digit VIN. Our technicians will then use official GM tools to flash the module with the latest factory software specific to your car’s build. This ensures all systems, options, and emissions controls function exactly as intended by the manufacturer.
This module is a direct replacement for the following service numbers: 12590032, 12602044, 12603530, 12605843, 12607096, 12630457, and 19210737. By ordering from us, you bypass the need for a tow to the dealership and avoid their high programming fees.
Frequently Asked Questions
Do I need to get this module programmed?
No. This module comes fully programmed to your vehicle’s VIN before we ship it. It is ready for installation right out of the box.
Where do I find my VIN?
Your 17-digit VIN can be found on your vehicle’s registration, insurance card, or on a plate on the driver’s side dashboard visible through the windshield.
Will I need to do anything after installing the ECM?
In many cases, you may need to perform a simple security relearn procedure, also known as a Passlock or anti-theft relearn. This procedure can typically be done without special tools and involves a series of key cycles. Instructions are widely available online or in service manuals. Some vehicles may also require a Crankshaft Variation (CASE) relearn, which requires a capable scan tool.
Will this fix my check engine light?
If the check engine light and associated codes are caused by a faulty ECM, this replacement part will resolve the issue. It’s crucial to ensure your vehicle’s problem has been correctly diagnosed as an ECM failure.
Is this a genuine GM part?
Yes, this is a genuine OEM part that has been inspected, tested, and programmed with the latest GM-certified software for your vehicle.