Are you tired of dealing with a faulty Electronic Control Module (ECM) in your 2003-2007 GMC SILVERADO 3500 PICKUP? Do you struggle with poor engine performance, rough idling, or even stalling? Look no further! Our pre-programmed 12589463 ECM is here to restore your vehicle’s original OEM function and reliability.
- Restores original ECM function for smooth operation and optimal performance.
- OEM-equivalent build ensures long-lasting reliability and durability.
- Pre-programmed to your VIN – no dealership visits or complicated setup required.
- Includes a 1-year warranty for peace of mind and protection against defects.
- Easy DIY installation with basic tools – simply disconnect the battery first to avoid shorts.
- Outperforms worn OEM modules without any modifications or tuning.
- Compatible with various GMC models, including SILVERADO 3500 PICKUP, SIERRA 3500 PICKUP, and more (see below for details).
No more sluggish acceleration on highways or rough idling in the mornings. Our pre-programmed ECM ensures your engine runs smoothly and efficiently, just like new. Unlike failing factory modules that trigger annoying codes, this replacement restores efficiency and gets you back on the road quickly.
Important Installation Notes
Please note that after installation, it’s essential to perform a theft relearn using GM systems like Tis2web/Techline Connect to ensure security features align perfectly. Additionally, end-users are responsible for any necessary injector setup or crankshaft variation relearns. Failure to do so may result in poor engine performance or other issues.
Pairing with a diagnostic tool is highly recommended for optimal results. This will help you diagnose and clear any trouble codes before installing the new ECM. Learn more about pairing with diagnostics below.
This part will fit these makes and models with these options
2003-2007 GMC SILVERADO 3500 PICKUP, SIERRA 3500 PICKUP, and other compatible models (see base description for details). Part number cross-references include 89017750 12582605 12589463 12602802 89017734 28042802.
Order your pre-programmed ECM today and rediscover reliable driving in your GMC SILVERADO 3500 PICKUP!