Restore Your Camaro’s Heartbeat and Performance
Is your 2012-2015 Camaro suffering from frustrating and unpredictable electrical issues? A vehicle that won’t start, stalls unexpectedly, or has a persistent Check Engine Light can sideline your high-performance machine. As a technician with over two decades of experience under the hood, I’ve seen firsthand how a failing Engine Control Module (ECM) can mimic a dozen other problems, leading to wasted time and money on incorrect repairs. This isn’t just a component; it’s the brain of your engine, and when it falters, the entire vehicle suffers.
We offer a dependable and straightforward solution. This genuine GM Engine Control Module, service part number 12678513 (interchangeable with 12633264), is the definitive fix for a faulty computer. The best part? We take the biggest headache out of the equation. Before this module ever leaves our facility, we program it with the latest official GM software, tailored specifically to your car’s unique Vehicle Identification Number (VIN). This means no expensive trips to the dealership for programming—you get a component that’s ready for installation right out of the box, restoring your vehicle to its factory-specified operating parameters.
Case Study: A Tricky Diagnosis
I remember a 2013 Camaro ZL1 that came into the shop with an intermittent no-start condition and a host of random communication codes. The owner had already replaced the battery and checked all the main power and ground wires. On the surface, it looked like a network issue. However, after connecting my scan tool, I noticed the ECM would occasionally drop offline entirely. We tested the power feeds and grounds directly at the ECM connector and they were solid. The culprit was an internal failure in the ECM’s processor, causing it to randomly shut down communication. Swapping in a pre-programmed 2012-2015 Camaro ECM like this one resolved all the issues instantly. It’s a classic example of how the root cause can be the central computer itself.
Is Your Camaro Showing These Symptoms?
A failing ECM can manifest in numerous ways. If you’re experiencing any of the following, a faulty engine computer is a likely cause. This is especially true if you see internal processor error codes.
- ✔ Check Engine Light is illuminated with codes like P0601, P0606 (Internal Control Module Memory Check Sum Error / Processor Fault).
- ✔ The engine cranks but refuses to start.
- ✔ Unexplained stalling or rough idling.
- ✔ A noticeable drop in fuel economy.
- ✔ Poor engine performance and hesitation during acceleration.
- ✔ Communication issues with other modules on the vehicle’s network.
- ✔ Inconsistent or harsh automatic transmission shifting.
A Straightforward Guide to Installation
Replacing the ECM is a task many DIY enthusiasts can handle. Our VIN programming service makes it even simpler. While specific steps may vary slightly, here is a general guide.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before beginning any electrical work.
- Locate the ECM: On the 2012-2015 Camaro, the ECM is typically located in the engine compartment. Consult a service manual for the exact position on your specific model and engine type.
- Disconnect Connectors: Carefully release the locking tabs on the electrical connectors and pull them straight out from the module. Do not force them. Inspect the pins for any corrosion or damage.
- Remove the Old Module: Unbolt the mounting hardware holding the old ECM in place and remove it from the vehicle.
- Install the New Module: Mount your new, pre-programmed 2012-2015 Camaro ECM securely in place. Reconnect the electrical connectors, ensuring they click and lock into position.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Security Relearn: Most GM vehicles of this era require a security relearn procedure to sync the new ECM with the anti-theft system. This can typically be done without special tools and involves a sequence of key turns. A common procedure is the 10-minute or 30-minute relearn. Instructions are widely available online or in your service manual.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of GM vehicles. Please verify your vehicle, year, and engine options below. Providing your VIN at checkout is essential for us to ensure perfect programming and compatibility.
CAMARO 2012 Electronic Control Module; 6.2L, ID 12633264
CAMARO 2013-2015 Electronic Control Module; 6.2L, VIN P (8th digit, opt LSA)
CANYON 2010-2012 Electronic Control Module; (RH firewall), 5.3L
COLORADO 2010-2012 Electronic Control Module; (RH firewall), 5.3L
CORVETTE 2010-2013 Electronic Control Module; (RH engine compartment), 6.2L, VIN R (8th digit, opt LS9)
CORVETTE 2010-2013 Electronic Control Module; (RH engine compartment), 6.2L, VIN T (8th digit, opt LS9)
CTS 2010-2013 Electronic Control Module; (RH front engine compartment), 6.2L
CTS 2014 Electronic Control Module; Cpe, 6.2L
CTS 2014 Electronic Control Module; Sdn, 6.2L
CTS 2014 Electronic Control Module; SW, 6.2L
CTS 2015 Electronic Control Module; Cpe
HUMMER H3 2010 Electronic Control Module; (RH firewall), 5.3L
MALIBU 2010-2012 Electronic Control Module; 3.6L
Frequently Asked Questions
Do I need to do anything after installing this ECM?
Yes. While we handle the main programming, you will need to perform a security relearn procedure (also known as a key relearn or anti-theft relearn). This syncs the new ECM to your vehicle’s security system and allows it to start. This procedure typically does not require any special tools.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot program and ship your module without it. Please double-check it for accuracy to ensure correct programming.
Is this a brand new part?
This is a high-quality, tested, and inspected original equipment part that has been professionally prepared for resale. It is programmed with the latest GM software updates for your specific VIN to ensure reliable performance.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of the original ECM (e.g., codes P0601-P0606), then this replacement part is the correct solution. If the light is on for other reasons, such as a faulty sensor, those issues will still need to be addressed separately.
What if my original part number is 12633264?
This part, 12678513, is a direct, interchangeable service replacement for part number 12633264. It will function identically once programmed for your vehicle.