We handle the complex flashing process, so you can focus on the simple installation. He had already replaced the camshaft and crankshaft position sensors, the throttle body, and even the fuel pump based on various forum suggestions.
No, this is a high-quality, used OEM part that has been sourced from a salvaged vehicle. Is a persistent Check Engine Light driving you crazy?. This isn’t just an inconvenience; it’s a problem that affects your vehicle’s reliability and your peace of mind.
Get your daily driver back to peak condition and enjoy a smoother, more dependable ride. Simply swapping a used ECM from another vehicle won’t work—it will cause a no-start condition or a cascade of error codes.
• Part Number: 12644446. • Service Number: 12653998. • Manufacturer Part Number: 12644446. • OE/OEM Part Number: 12644446. • Other Part Number: 12653998. • Interchange Part Number: AA1H. • Module Type: E39A ECM / ECU / PCM.
If you’re noticing any of the following, a faulty ECM is the likely culprit. Diagnostic Trouble Codes (DTCs) like P0601, P0602, P0606, or other communication errors often point directly to a failing module.
Service Number: 12653998. Compatibility: This Service Number (12653998) fits a wide variety of 2013-2016 GM vehicles. Condition: Used, OEM unit. NOT PLUG & PLAY: This module requires professional programming and/or VIN matching using a GM-compatible scan tool (e.g., Tech2, MDI) to function in your vehicle.
My original part number isn’t 12644446. Will this still work?. No need for a trip to the dealer for expensive flashing or key relearning procedures. We take your vehicle’s VIN and flash the module with the latest, most stable software updates directly from GM.
As a technician with over 20 years of experience, I’ve seen countless vehicle owners install a used ECM only to find the car still won’t start. Our pre-programming service handles this complex step for you.
You might also notice unexplained stalling, harsh transmission shifting, or a complete no-start condition where the engine cranks but never fires. It arrives ready for installation, flashed with the latest official GM software tailored specifically to your vehicle’s Vehicle Identification Number (VIN).
If you’re experiencing any of the following issues, a failing engine computer is the likely culprit. Our critical programming service bridges this gap, making the installation process as simple as swapping the part, saving you hundreds in dealer programming fees and diagnostic headaches.