Description
2004 Chevrolet Malibu 3.5L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Chevrolet Malibu 3.5L 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 require key programming after installation. This is normal.
For a 100% plug-and-play solution, we recommend using our full cloning service. We transfer all security data to the replacement unit.
A prepaid shipping label will be emailed to you. Allow you to mail in your original computer to us for full cloning.
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
Brian Howard –
I was impressed with how quickly this 2004 Chevrolet Malibu PCM arrived, especially with the free shipping offer. The unit was perfectly VIN programmed and worked flawlessly right out of the box. The seller also responded promptly to my questions and kept me informed throughout the process. Overall, a smooth and professional experience from start to finish.
Zachary Graham –
The ECU arrived quickly with free shipping and was perfectly programmed for my 2004 Malibu—installation was a breeze.
Customer service was fantastic, answering all my questions promptly and making the whole process straightforward.
Fast turnaround and the plug-and-play setup saved me so much time; the car runs like new again.
Great quality ECM with very reasonable shipping costs, exactly what my Malibu needed to get back on the road.
They kept me in the loop every step of the way, and the updated ECU worked flawlessly right out of the box.