Description
2019 Cadillac ATS 2.0L AT gas ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2019 Cadillac ATS 2.0L AT gas models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with our cloning service.
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:
Complete communication & CAN-bus verification
Sensor input/output and signal integrity checks
Injector & ignition pulse simulation
Power, ground, and load-circuit analysis
Flash memory integrity and checksum validation
Thermal and voltage-stress testing to confirm reliability
Important Note
Some vehicles with IMMO or PATS may require key programming after installation. This is normal.
For a 100% plug-and-play solution with no relearns, your original ECU must be sent in for cloning. We transfer all security data to the replacement unit.
👉Add the cloning service as a bundle at checkout — $300 CAD / $215 USD
A prepaid shipping label will be emailed to you.
If cloning is not selected, the ECU will be VIN programmed, and a key relearn will be required after installation.
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.