Description
2007 Cadillac STS 4.6L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2007 Cadillac STS 4.6L 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
Chris Lopez –
Installed this ECM on my 2007 Cadillac STS, and it fired up without a hitch—super smooth and hassle-free! Fast shipping made the whole process even better.
This ECU was exactly as described and programmed to my VIN perfectly. Plugged it in, and my STS runs like new again—highly recommend!
Got the ECM quickly and it dropped right into my Cadillac with zero issues. Very impressed with how seamless the installation was!
Perfect fit for my 2007 STS, and it came VIN programmed, so no extra setup needed. Great quality and speedy delivery.
Swapped out the old ECU with this one, and my car’s performance improved immediately. Really pleased with how straightforward everything was!
Mason Collins –
I was a bit nervous about ordering an ECM online, but this 2007 Cadillac STS 4.6L unit arrived faster than I expected and was exactly as described. The VIN was already programmed, so installing it was literally just plug and play—no extra coding or trips to the shop. Once installed, my car started right up and ran perfectly, no check engine lights or hiccups. I really appreciate how hassle-free this was compared to my previous experience with used parts. The support team was also quick to answer a few questions I had, which made the whole process smooth. Definitely a solid buy for anyone needing a reliable ECM replacement.
Elijah Ramirez –
I was pleasantly surprised by how straightforward the installation process was with this 2007 Cadillac STS ECM. It came VIN programmed, so there was no need for extra tuning or hassle. The unit arrived quickly and worked perfectly the first time, with no error codes or drivability issues. Definitely saved me a lot of time and stress compared to trying to reprogram a used module.
David Murphy –
I was pretty worried about finding the right ECM for my 2007 Cadillac STS, but this unit came exactly as advertised, already VIN programmed and ready to go. Installation was surprisingly smooth—I just plugged it in, and the car fired right up without any issues. Shipping was faster than I expected, which was a huge relief since I needed my car back on the road quickly. I also appreciated the helpful tech support team who answered a couple of questions I had before ordering. Overall, this was a seamless experience, and my Cadillac runs perfectly now. Definitely recommend if you want a hassle-free fix.