Are you tired of dealing with a faulty engine control module (ECM) in your 2003-2007 GMC Sierra 2500 Pickup? Look no further! This pre-programmed 12602802 ECM is designed to restore your vehicle’s original performance and reliability. With its OEM-equivalent build, you can trust that this module will provide long-lasting results.
- Restores original ECM function for smooth engine operation.
- OEM-equivalent build ensures long-lasting reliability.
- Pre-programmed to your VIN—no dealership visits needed.
- Includes 1-year warranty for peace of mind.
- Easy DIY install with basic tools (tips: disconnect battery first to avoid shorts).
- Outperforms worn OEM without modifications.
- Compatible with various engine sizes, including 5.3L and 6.0L options.
No more sluggish acceleration on highways or rough idling in the morning. This ECM is designed to work seamlessly with your vehicle’s systems, providing a reliable fix for check engine lights and other issues. Unlike failing factory modules that trigger codes, this replacement restores efficiency and performance. For optimal results, pair it with a diagnostic tool—here’s how:
Use a code reader to diagnose the issue before swapping the ECM. This ensures you’re addressing the root cause of the problem. Once installed, take your vehicle for a spin to test its performance. If you notice any issues, refer to our troubleshooting guide or contact our support team.
Important Installation Notes
Before installing this ECM, ensure you have the correct VIN and programming information. Failure to do so may result in improper function or damage to your vehicle’s systems. It’s also essential to follow proper installation procedures to avoid any potential risks. Please note that some vehicles may require additional setup or relearns after installation.
For example, if you’re replacing the ECM on a 2005 GMC Sierra 2500 Pickup with a 6.0L engine, you’ll need to perform a theft relearn using GM systems like Tis2web/Techline Connect. This ensures security features align perfectly and prevents any potential issues.
Buyer responsibility: It’s essential to understand that some ECMs may require additional setup or relearns after installation. As the buyer, it’s your responsibility to ensure you follow proper procedures and provide accurate VIN information for programming. Failure to do so may result in improper function or damage to your vehicle’s systems.
Order your pre-programmed ECM today and rediscover reliable driving in your 2003-2007 GMC Sierra 2500 Pickup!
This part will fit these makes and models with these options
2003 – 2007 GMC SIERRA 2500 PICKUP, Electronic Control Module (ECM), compatible with various engine sizes, including 5.3L and 6.0L options.