Description
2004 RAM Ram Truck (Cummins) 5.9L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 RAM Ram Truck (Cummins) 5.9L 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
Carlos Parker –
The ECU arrived quickly with free shipping and was perfectly programmed for my 2004 Ram 5.9L—super easy plug-and-play setup.
Great communication throughout the process and the updated ECM worked flawlessly right out of the box.
Fast turnaround and professional programming made installing this ECM a stress-free experience.
Shipping was very reasonable and the quality of the PCM repair exceeded my expectations.
They answered all my questions promptly and the VIN-programmed ECU fired up my Ram without a hitch.
Isaac Howard –
Fast shipping and the plug-and-play programming made installation a breeze on my 2004 RAM Cummins. Highly recommend!
Dylan Reynolds –
I bought the 15305151AG ECM for my 2004 RAM with the Cummins 5.9L, and it arrived quickly with free shipping, which was a nice bonus. The unit was already VIN programmed, so installation was straightforward without any hassle. The seller’s communication was excellent—they responded promptly to my questions and kept me informed throughout the process. Overall, a smooth experience and the engine runs perfectly now.