2007-2009 Envoy Engine Control Module ECM 12603530 Programmed to your VIN

Restore Your Envoy’s Performance

Fix stalling, no-start conditions, and persistent check engine lights with this Engine Control Module. It arrives pre-programmed to your vehicle’s VINโ€”no dealer visit required. Get back on the road fast. Order yours now!

$118.99

+11.99 USPS Priority Shipping

Availability: In stock



SKU: 590-08112-122 Categories: ,
Guaranteed Safe Checkout

Is Your 2007-2009 Envoy Plagued by Mysterious Electrical Gremlins?

If your GMC Envoy is suddenly acting up, you know how frustrating it can be. One day it’s the reliable SUV you count on, and the next it’s stalling at intersections, refusing to start, or flashing a Check Engine Light that won’t go away. As a technician with over two decades of experience under the hood, I’ve seen these exact scenarios hundreds of times. The culprit is often the one component you can’t easily see or test: the Engine Control Module (ECM).

Common Symptoms of a Failing Envoy ECM

A faulty ECM is the brain of your engine, and when it starts to fail, the symptoms can be widespread and confusing. You might be experiencing:

  • โœ” Unexplained stalling or engine hesitation
  • โœ” Complete no-start condition, even with a good battery and starter
  • โœ” A persistent Check Engine Light with multiple, often unrelated, communication or sensor codes
  • โœ” Poor fuel economy and reduced engine power
  • โœ” Erratic transmission shifting or behavior
  • โœ” Problems with the anti-theft system (Passlock/Passkey) preventing the engine from running

Expert Pro Tip: Check the Basics First

Before you condemn your ECM, I always tell my customers to do a quick check of the fundamentals. On these GM trucks, a corroded ground wireโ€”especially the main one from the battery to the engine block or frameโ€”can mimic a bad computer. Also, use a multimeter to verify you have solid battery voltage (12.4V+ with engine off) and check the main ECM fuses. I’ve seen a simple $2 fuse replacement save a customer from a $500+ repair bill. A few minutes of diagnostics can save you a lot of headache and money.

The Direct Solution: A VIN-Programmed ECM

If you’ve ruled out the basics and confirmed the ECM is the problem, the next hurdle is getting a replacement that actually works. In the past, this meant buying a module, having your vehicle towed to a dealership, and paying them hundreds of dollars just to program it. We eliminate that entire expensive and time-consuming process.

This Engine Control Module, part number 12603530, is the definitive solution. We take a fully tested, reliable ECM and flash it with the latest GM-certified software specifically for your vehicle. All we need is your Vehicle Identification Number (VIN) at checkout. When the module arrives at your door, it’s ready to be installed.

Why is VIN Programming So Important?

Your Envoy’s VIN isn’t just a serial number; it’s a blueprint that tells the ECM everything it needs to know. This includes:

  • โœ” The specific engine (e.g., 4.2L or 5.3L) and its operating parameters.
  • โœ” The type of transmission and its shift points.
  • โœ” Factory-installed options like cruise control, specific emissions equipment, and security systems.

Without the correct VIN-specific programming, a generic module will cause more problems than it solves. Our service ensures perfect compatibility and function right out of the box.

Guaranteed Compatibility

This module is a direct replacement for a wide range of GM vehicles and is interchangeable with several service numbers. If your original module has one of the following numbers, this part is a guaranteed fit:

  • โœ” 12590032
  • โœ” 12602044
  • โœ” 12603530
  • โœ” 12605843
  • โœ” 12607096
  • โœ” 12630457
  • โœ” 19210737

After installation, you may need to perform a simple security relearn procedure, which can typically be done in your driveway without any special tools. This syncs the new ECM to your vehicle’s anti-theft system. Don’t let a faulty computer keep your Envoy off the road. Get the reliable, pre-programmed solution and restore your vehicle’s performance and dependability.

Genuine OEM

Yes

Condition

Refurbished

MPN

12603530

Interchange part number

PartNumber

590

Model

ENVOY

Year

2009

Brand

GM

Manufacturer Part Number

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Hardware Type

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