Is Your Vehicle Plagued by Frustrating Electrical Issues?
A failing Engine Control Module (ECM) can turn your reliable vehicle into a source of constant stress. If you’re dealing with a car that won’t start, stalls unexpectedly, or has a check engine light that just won’t go away, you know how disruptive it can be. This isn’t just an inconvenience; it’s a serious problem that affects your vehicle’s performance, fuel economy, and safety. You need a solution that is reliable, cost-effective, and gets you back on the road without the hassle and expense of a dealership visit. This is the definitive solution to get your vehicle running properly again.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty ECM is the likely culprit. This professionally programmed unit is designed to resolve these exact problems:
- Persistent Check Engine Light (CEL)
- Engine stalling, sputtering, or misfiring
- Complete no-start condition
- Poor fuel economy and reduced engine power
- Transmission shifting problems
- Communication error codes (U-codes)
- Specific Diagnostic Trouble Codes (DTCs) like P0601, P0602, P0606, or P060C
This programmed 2014-2016 Caprice ECM 12633555 is your direct-fit, ready-to-install answer. We take a tested, genuine GM module and flash it with the latest, most stable software update from the manufacturer, tailored specifically to your vehicle’s Vehicle Identification Number (VIN). This eliminates the need for expensive on-car programming and ensures optimal performance from the moment you install it.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash the unit with your car’s specific VIN, ensuring it communicates perfectly with all other onboard modules for a true plug-and-play installation.
- ✔ Cost-Effective Solution: Get a fully functional, programmed computer for a fraction of the cost of a new unit from the dealership, saving you hundreds of dollars.
- ✔ Latest GM Software Updates: Your module arrives with the most recent factory software, which often corrects drivability issues and bugs present in older calibrations.
- ✔ Extensive Compatibility: This ECM, also known by part numbers 12653998, 12655007, and 12644446, fits a wide range of GM vehicles, ensuring broad application and proven reliability.
- ✔ Restored Performance & Efficiency: A properly functioning ECM is critical for optimal engine timing, fuel delivery, and emissions control, restoring the power and fuel economy you expect.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
An Expert’s Note on Programming: Many people don’t realize that simply swapping an ECM from another vehicle won’t work. Modern vehicles have sophisticated anti-theft systems (like GM’s Passlock/VATS) that are tied to the VIN. Our pre-programming service handles this critical step for you. We’ve seen countless customers save time and towing fees by avoiding a trip to the dealer for programming. We ensure the security handshake between the ECM, ignition, and body control module is set up correctly, so your vehicle starts and runs as it should, right away.
Don’t let a faulty computer keep you off the road. This programmed 2014-2016 Caprice ECM 12633555 is the smart, reliable fix for a wide array of GM cars, trucks, and SUVs. Take control of your repair and restore your vehicle’s dependability.
Frequently Asked Questions
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). You can typically add it as a note during checkout or send it to us in a message referencing your order number. We cannot ship the part until we have your VIN.
Is any additional programming required after installation?
In most cases, no additional programming is needed. However, some vehicles may require a simple security relearn procedure (often called a key relearn or anti-theft relearn) which can typically be done without special tools. Instructions for this procedure are widely available online for your specific model.
Is this a new part?
No, this is a high-quality, used OEM part sourced from a salvaged vehicle. Each unit is inspected and tested to ensure it is fully functional before being programmed and shipped to you.
How can I be sure this ECM will fit my vehicle?
The best way to ensure compatibility is to match one of the part numbers (12633555, 12653998, 12655007, 12644446) with your original unit. The extensive fitment list provided also serves as a guide. When we program the unit to your VIN, we perform a final compatibility check with the GM database.
What if I have questions during installation?
While we cannot provide vehicle-specific repair advice, we are here to support the product itself. We recommend installation be performed by a qualified technician. Always disconnect the battery before removing or installing any electronic modules.