Is Your Cadillac CTS Experiencing Frustrating Engine Problems?
If you’re dealing with issues like intermittent stalling, a car that refuses to start, a persistent Check Engine Light, or strange transmission shifting, the root cause is often the Engine Control Module (ECM). As a technician with over two decades of experience under the hood, I’ve seen how a failing ECM can mimic a dozen other problems, leading to expensive and incorrect repairs. The ECM is the brain of your engine, and when it starts to fail, the symptoms can be unpredictable and maddening.
From the Shop Floor: “A customer’s 2011 Cadillac CTS came in last week with these exact symptoms. It would stall at stoplights intermittently, and they had already replaced the fuel pump and throttle body at another shop with no success. After hooking up my scan tool, I found a P0606 code (ECM/PCM Processor Fault) stored in memory. This code is a dead giveaway. We installed one of our VIN-programmed modules, performed the security relearn, and the car has run flawlessly ever since. They saved hundreds by avoiding a blind parts-throwing approach.”
The Direct Solution: A VIN-Programmed ECM
This isn’t just a replacement part; it’s a complete solution. We are offering a genuine GM Engine Control Module, part number 19300015, that comes fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). This critical programming step ensures that the module communicates perfectly with your car’s other systems—like the transmission, ABS, and security system—right out of the box. We flash it with the latest, most stable software updates from GM, which often correct the very drivability issues that caused the original unit to fail.
Common Symptoms of a Failing 3.6L ECM:
- ✔ Check Engine Light with codes like P0601, P0602, P0606, or other U-series communication codes.
- ✔ Unexplained engine stalling, especially when coming to a stop or at idle.
- ✔ Complete no-start condition where the engine cranks but won’t fire.
- ✔ Poor or erratic automatic transmission shifting.
- ✔ Reduced engine power or the vehicle entering ‘limp mode’.
- ✔ Communication loss with your diagnostic scan tool.
How Our Programming Service Works
The process is simple. After you complete your purchase, you will need to provide us with your vehicle’s 17-digit VIN. Our certified technicians will then use this information to load the correct GM-certified software onto the module. This means when you receive the part, you’re getting a component that is precisely matched to your 2010-2011 CTS, eliminating the need for an expensive trip to the dealership for programming.
Installation Note for CTS: On the 2010-2011 Cadillac CTS, the ECM is located in the engine bay on the passenger’s side (RH front engine compartment). It’s a straightforward replacement, but you will need to perform a security relearn procedure after installation, which can typically be done without special tools. Instructions are widely available online or in service manuals.
IMPORTANT NOTE FOR CAMARO & LACROSSE OWNERS:
Due to the specific immobilizer systems in the 2010-2011 Camaro and LaCrosse, making this module truly plug-and-play requires an extra step. We will need you to send us your original ECM. We will professionally extract the unique immobilizer data and program it into your new module. This ensures your keys will work immediately upon installation without any complex procedures. We will contact you with shipping instructions after your purchase.
Guaranteed Compatibility
This module is a direct replacement for the following part numbers:
- ✔ 19300015
- ✔ 19300014
- ✔ 12617230
- ✔ 12636355
- ✔ 12635019
It is verified to fit the following vehicles equipped with the 3.6L V6 engine:
- ✔ Cadillac CTS: 2010-2011
- ✔ Cadillac STS: 2010-2011
- ✔ Buick LaCrosse: 2010-2011
- ✔ Buick Allure: 2010
- ✔ Buick Enclave: 2010-2011
- ✔ Chevrolet Camaro: 2010-2011
- ✔ Chevrolet Traverse: 2010-2011
- ✔ GMC Acadia: 2010-2011
- ✔ Saturn Outlook: 2010