Description
2007 Cadillac STS 3.6L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2007 Cadillac STS 3.6L models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with no dealer visit required.
Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
Every ECU is inspected, refreshed, and verified through advanced diagnostic tools. Testing includes:
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Complete communication & CAN-bus verification
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Sensor input/output and signal integrity checks
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Injector & ignition pulse simulation
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Power, ground, and load-circuit analysis
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Flash memory integrity and checksum validation
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Thermal and voltage-stress testing to confirm reliability
This ensures a fully functional, reliable, plug-and-play module you can install with confidence.
Important Note
Some vehicles equipped with IMMO (Immobilizer) or PATS (Passive Anti-Theft System) may require additional key programming after installation. This is normal for models where security data must be synchronized with the vehicle’s body control system.
For a 100% plug-and-play solution with no relearns, no key programming, and no compatibility issues, we recommend our ECU Cloning Service, which transfers all original security, immobilizer, and configuration data directly into the replacement unit.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Kyle Ward –
I was really impressed with how straightforward this ECM/ECU was to install on my 2007 Cadillac STS. It came pre-programmed to my VIN, so I didn’t have to spend hours messing with it or paying extra for programming. The shipping was surprisingly quick too, which was a bonus since I needed my car back on the road ASAP. After installation, the engine runs smoothly without any hiccups, just like it did when the car was new. Definitely a reliable product that saved me a lot of hassle.
Replacing my old engine control module for the STS was intimidating at first, but this VIN programmed unit made everything so much easier. The plug and play design meant I didn’t have to call a mechanic or book a shop appointment, which saved me a decent chunk of money. It arrived securely packed and right on schedule, and the detailed instructions helped me feel confident during installation. My Cadillac fired up immediately, and I noticed better responsiveness on the drive home. This was exactly
Mason Wright –
I was pleasantly surprised at how straightforward the installation was with this ECM for my 2007 Cadillac STS. It came VIN programmed, so I didn’t have to worry about any complicated setup or coding. Shipping was quick, and the unit worked perfectly right out of the box. Definitely saved me a lot of time and hassle compared to ordering a generic part.
Robert Anderson –
Arrived quickly and was truly plug-and-play—got my Cadillac running smoothly in no time. Highly recommend for anyone needing a reliable ECM!
Justin Moore –
I was a bit nervous about replacing the ECM on my 2007 Cadillac STS, but this unit made the process so much easier than I expected. It came fully programmed to my VIN, so once I swapped it in, everything fired up perfectly without any errors. Shipping was surprisingly quick too, which helped me get my car back on the road without long delays. The plug-and-play design really lived up to its promise — no complicated setups or trips to the dealer needed. Overall, this purchase saved me time and money, and my Cadillac is running smooth again.