Description
2018 Cadillac ATS 2.0L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2018 Cadillac ATS 2.0L 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
Jorge Cook –
The ECM arrived quickly and was exactly as described, programmed specifically for my 2018 Cadillac ATS. Installation was straightforward—just a simple plug-and-play setup with no hiccups. After swapping it in, the car started perfectly, and all systems are running smoothly. Very impressed with the quality and service on this purchase.
Travis Morris –
Super easy install and it arrived quicker than expected—perfect fit for my 2018 ATS!
This ECM was a flawless swap, no hassle at all, and the car runs like new now.
Fast delivery, zero programming headaches, and my ATS is back to peak performance!
Plugged it in, started right up, and everything has been running smoothly ever since.
Great product with excellent support—definitely made replacing my Cadillac’s ECU stress-free.