Restore Your Vehicle’s Performance and Reliability
Is your GM vehicle suffering from frustrating issues like a persistent Check Engine Light, poor fuel economy, erratic shifting, or even a no-start condition? The Engine Control Module (ECM) is the central computer of your vehicle, managing everything from fuel injection and ignition timing to transmission operation. When it fails, it can cause a cascade of problems that are often difficult to diagnose. This genuine GM Engine Control Module, part number 12673195, is the definitive solution to get your car or truck running like new again.
We take the guesswork and high cost out of the repair. Unlike a dealership that requires you to tow your vehicle in for expensive programming, we flash this module with the latest official GM software specific to your vehicle’s VIN before it ships. This means it arrives at your door ready for a straightforward installation, saving you time, money, and a major headache. This is the ideal fix for both seasoned professional mechanics and determined DIY enthusiasts.
From the Diagnostic Bay: The Intermittent No-Start Silverado
I had a 2015 Silverado 1500 in my shop that was giving the owner fits. It would start fine for a week, then suddenly refuse to crank, only to start perfectly an hour later. It was throwing a U0100 (Lost Communication with ECM) and a P0601 (Internal Control Module Memory Check Sum Error). After verifying the power and ground circuits to the ECM were solid, it was clear the module’s internal processor was failing intermittently. Instead of a costly dealer repair and tow bill, the owner ordered one of these pre-programmed ECMs. It arrived two days later, and the swap took less than 20 minutes in the driveway. The truck fired right up, all codes were gone, and it hasn’t missed a beat since. This is the power of a reliable, pre-programmed part.
Is Your Vehicle Showing These Signs of ECM Failure?
- ✔ Persistent Check Engine Light (CEL) with codes like P0601, P0606, or U0100.
- ✔ Engine stalling, stumbling, or misfiring for no apparent reason.
- ✔ Complete no-start or intermittent starting problems.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Transmission shifting harshly or at the wrong times.
- ✔ Failure to pass state emissions testing.
- ✔ Other warning lights on the dash, such as for the traction control system.
A Straightforward Guide to Installation
Replacing your 2016 Camaro Engine Control Module or the ECM in another compatible GM vehicle is a manageable job for most DIYers. While specific locations vary slightly, the process is generally the same.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before starting work.
- Locate the ECM: On most GM trucks and SUVs (Silverado, Sierra, Tahoe), it’s in the engine compartment on the driver’s side. On cars like the Camaro or Corvette, it may be on the cowl or firewall.
- Disconnect Connectors: Carefully release the locking tabs on the electrical harness connectors and pull them straight out from the module. Do not force them.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket. Keep the hardware as you will reuse it.
- Install the New Module: Bolt your new, pre-programmed ECM into place.
- Reconnect Everything: Firmly plug the electrical connectors back into the new module until they click. Reconnect the negative battery terminal.
- Perform Security Relearn: In some cases, a simple security relearn procedure is needed. Turn the key to the ‘ON’ position for 10-15 minutes, then ‘OFF’ for 10 seconds. Repeat this cycle 3 times. Your vehicle should then start normally.
Verified Compatibility for Your GM Vehicle
This module is a direct replacement for a wide range of popular GM models, ensuring a perfect fit and function. It is compatible with original part numbers 12692067, 12676230, 12656993, 12662034, 12672537, 12673195, 12663391, 12672963, and 12669318. Please verify your vehicle is on the list below:
- Cadillac ATS: 2014-2016 (3.6L)
- Cadillac CTS: 2014-2016 (3.6L, 6.2L)
- Cadillac Escalade / ESV: 2015-2016
- Cadillac XTS: 2014-2016 (3.6L)
- Chevrolet Camaro: 2016 (6.2L)
- Chevrolet Colorado: 2015-2016 (3.6L)
- Chevrolet Corvette: 2014-2016
- Chevrolet Silverado 1500: 2014-2016
- Chevrolet Suburban: 2015-2016
- Chevrolet Tahoe: 2015-2016
- GMC Canyon: 2015-2016 (3.6L)
- GMC Sierra 1500 / Denali 1500: 2014-2016
- GMC Yukon / Yukon XL: 2015-2016
Frequently Asked Questions
Do I need to program this ECM?
Do I need to program this ECM?
No. We handle all the programming for you before we ship the part. It arrives ready to install. This service saves you the time, expense, and hassle of a dealership visit.
What information do you need from me?
After you complete your purchase, you will need to provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). This allows us to load the exact, correct GM software for your specific vehicle and its options.
Is this a used or repaired part?
This is a high-quality, genuine GM-spec component that has been inspected and prepared for service, then loaded with the newest factory software. It is a reliable and cost-effective alternative to a new dealer part.
Will this fix my car’s problem for sure?
This module will correct any issues directly caused by a faulty ECM. However, it’s crucial to ensure the ECM is truly the problem. Symptoms like misfires or sensor errors can also be caused by bad spark plugs, wiring, or sensors. Proper diagnosis is key to a successful repair.
What if my original part number is not 12673195?
This module is a direct replacement for several part numbers, including 12692067, 12676230, 12656993, and more as listed in the description. As long as your vehicle model and year are on our compatibility list, this module will work for you.