Programmed 2012 Impala Engine Control Module ECM ECU 12651993

End Your Impala’s Engine Troubles

Tired of stalling, a no-start condition, or a stubborn check engine light in your 2012 Impala? This Engine Control Module is your solution. It arrives at your door fully programmed to your vehicle’s VIN with the latest GM software—no dealer visit required! It’s a direct-fit replacement that restores performance and reliability. Get back on the road with confidence and order yours today!

$187.99

+11.99 USPS Priority Shipping

Availability: In stock



SKU: 590-01910-68 Categories: ,
Guaranteed Safe Checkout

Restore Peak Performance to Your 2012 Impala

Is your 2012 Chevrolet Impala giving you headaches with a persistent Check Engine Light, unpredictable stalling, or a frustrating no-start condition? As a technician with over two decades of experience under the hood, I’ve seen these symptoms countless times. More often than not, the root cause isn’t a faulty sensor or a bad fuel pump—it’s the Engine Control Module (ECM), the electronic brain of your vehicle. When it fails, it can create a cascade of baffling problems that can be difficult to diagnose. This is the reliable, straightforward solution you’ve been looking for.

This isn’t just a replacement part; it’s a complete fix. We provide a genuine GM Engine Control Module that comes fully programmed with the latest software updates direct from GM. All we need is your vehicle’s VIN to flash the module specifically for your car. This critical step ensures perfect communication between the ECM and all other vehicle systems, restoring the factory-intended performance, fuel efficiency, and drivability. By choosing our pre-programmed 2012 Impala Engine Control Module, you bypass the expensive and time-consuming trip to the dealership for programming.

Case Study: A Tricky Diagnosis

A customer brought in a 2012 Impala that would randomly stall at traffic lights. They had already replaced the battery and alternator, but the problem persisted. No hard codes were stored, just a history of communication loss (U0100). After checking the main power and ground circuits to the ECM, which were solid, I suspected an internal module fault. Heat can cause internal solder joints to fail intermittently. We installed one of our pre-programmed ECMs, performed the security relearn, and the car ran flawlessly. The customer saved hundreds compared to the dealership quote and finally had a reliable car again.

Is Your Impala Showing These Telltale Signs?

A failing ECM can manifest in various ways. If you’re experiencing any of the following, it’s highly likely your engine’s computer is the culprit. Replacing your 2012 Impala Engine Control Module can be the definitive fix.

  • ✔ Check Engine Light is on with communication or internal processor codes (e.g., P0601, P0606, U0100).
  • ✔ Engine cranks but refuses to start.
  • ✔ Unexplained stalling or rough idling, especially when the engine is warm.
  • ✔ Noticeable decrease in fuel economy.
  • ✔ Poor engine performance, hesitation, or misfires.
  • ✔ Automatic transmission shifting erratically or harshly.
  • ✔ Other warning lights (like ABS or Traction Control) illuminate due to communication errors with the ECM.

Your Straightforward ECM Installation Guide

Installing your new ECM is a manageable task for a confident DIYer. For the 2012 Impala, the ECM is conveniently located on the air cleaner bracket. Follow these steps for a successful installation:

  1. Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent accidental contact.
  2. Locate the ECM: Open the hood and find the ECM mounted to the air cleaner housing on the driver’s side of the engine bay.
  3. Disconnect the Wiring: Carefully release the locking tabs on the electrical connectors and unplug them from the old module. Avoid pulling on the wires themselves.
  4. Remove the Old Module: Unbolt the old ECM from its mounting bracket. Keep the hardware as you will need it for the new unit.
  5. Install the New Module: Mount your new, pre-programmed ECM onto the bracket and secure it with the original bolts.
  6. Reconnect Everything: Plug the wiring harnesses firmly into the new module until they click into place. Reconnect the negative battery terminal.
  7. Perform Security Relearn: A security relearn (also known as a Passlock or anti-theft relearn) is often required. This procedure typically involves turning the key to the ‘ON’ position for 10-15 minutes, then ‘OFF’, and repeating two more times. Your vehicle’s service manual will have the exact steps. This syncs the new ECM with your car’s anti-theft system.

Verified Vehicle Compatibility

This module is a direct replacement for part numbers 12616889, 12630908, 12637106, 12642665, 12650256, and 12651993. While this listing is focused on the 2012 Impala Engine Control Module, it also fits a wide range of other GM vehicles. Please confirm your part number and vehicle from the list below to ensure proper fitment. We will program it specifically for the vehicle you provide.

  • ALLURE 10: 2.4L & 3.0L
  • CAMARO 12: 3.6L
  • CAPTIVA SPORT 12: All applicable engines
  • CTS 10-12: 3.0L & 3.6L
  • EQUINOX 10-11: All applicable engines
  • IMPALA 12: All applicable engines
  • LACROSSE 10-11: 2.4L & 3.0L
  • ORLANDO 12-13: All applicable engines
  • REGAL 11: All applicable engines
  • SAAB 9-5 10-11: 2.0L
  • SRX 10-11: 3.0L
  • TERRAIN 10-11: All applicable engines

Frequently Asked Questions

Frequently Asked Questions

Why do you need my VIN?

Your Vehicle Identification Number (VIN) is essential. We use it to program the ECM with the exact software and calibrations for your specific vehicle, including engine, transmission, and emissions options. This ensures a perfect match and seamless operation.

Is this part difficult to install?

For someone with basic mechanical skills, the physical swap is straightforward. The most important step is performing the security relearn procedure after installation, which syncs the module to your car’s anti-theft system. We provide general instructions, but your vehicle’s service manual is the best resource for the specific relearn steps.

Will this fix my Check Engine Light?

If the Check Engine Light is caused by an internal ECM failure (like codes P0601-P0606) or related communication errors, then yes, this part will resolve the issue. However, it’s always best to have the codes professionally diagnosed to ensure the ECM is the true cause of the problem.

What happens if I don’t provide my VIN?

We cannot ship the module without your VIN. The programming is the most critical part of this service, and without it, the ECM will not function in your vehicle. Please provide your VIN during checkout or message it to us immediately after your purchase to avoid delays.

Is this a new or used part?

This is a high-quality, tested, and verified genuine GM part that has been professionally prepared and programmed for your vehicle. It is guaranteed to function correctly and restore your vehicle’s operation.

Condition

Refurbished

Genuine OEM

Yes

MPN

12651993

Interchange part number

PartNumber

590

Model

IMPALA

Year

2012

Brand

GM

Manufacturer Part Number

, , , , ,

Scroll to Top