Restore Your Cadillac’s Performance and Reliability
Is your 2010-2012 Cadillac CTS experiencing frustrating issues like stalling, rough idling, a no-start condition, or a persistent Check Engine Light? These are classic signs of a failing Fuel System Control Module (FSCM). This critical component acts as the brain for your vehicle’s fuel pump, regulating fuel pressure and delivery. When it fails, it can leave you stranded and facing a complex, expensive repair at the dealership. As a technician with over 20 years of experience, I’ve seen countless vehicles sidelined by this exact problem. The good news is, you’ve found the straightforward, reliable solution.
This isn’t just a replacement part; it’s a complete, ready-to-install fix. We take a genuine GM Fuel System Control Module and program it specifically for your vehicle using your VIN. This means it arrives at your door with the latest GM software updates, which often correct the very issues that caused the original module to fail. You get to skip the hassle and high cost of dealership programming, making this a perfect choice for both savvy DIYers and professional repair shops looking to save time and deliver a quality repair.
Case Study: A Tricky Diagnosis
I remember a 2011 CTS that came into my bay with intermittent stalling. The owner had already replaced the fuel pump, but the problem persisted. Scans showed a P0230 (Fuel Pump Primary Circuit Malfunction) code, but only sometimes. Instead of just throwing more parts at it, we monitored the FSCM command versus the actual fuel rail pressure. We saw the command signal from the FSCM was dropping out unexpectedly, starving the engine of fuel. It wasn’t the pump; it was the module itself. A pre-programmed FSCM like this one solved the issue in under an hour, saving the customer hundreds in further diagnostic time and parts.
Is Your Cadillac Showing These Symptoms?
A faulty FSCM can manifest in several ways. If you’re noticing any of the following, it’s a strong indicator that your 2010-2012 CTS Fuel Module needs attention:
- ✔ Engine cranks but will not start
- ✔ Stalling, especially under load or when coming to a stop
- ✔ Hesitation or stumbling during acceleration
- ✔ Reduced engine power and poor fuel economy
- ✔ Illuminated Check Engine Light with fuel system-related codes (e.g., P069E, P0230, U0109)
- ✔ Inconsistent fuel pressure readings
A Straightforward Guide to Installation
Installing your new 2010-2012 CTS Fuel Module is a manageable job for anyone with basic tools. For the 2010-2012 CTS, the module is typically located in the left-hand rear of the trunk compartment, behind the trim panel.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Access the Module: Open the trunk and remove the necessary trim panels on the driver’s side to expose the FSCM. It’s a small, black box with electrical connectors.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old module. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt your new, pre-programmed FSCM into place. Reconnect the electrical connectors, ensuring they click securely into place.
- Reassemble and Test: Reinstall the trunk trim panels you removed. Reconnect the negative battery terminal. Start the vehicle and let it run for a few minutes to confirm the repair and ensure the Check Engine Light is off.
Verified Vehicle Compatibility
This module is a direct-fit, pre-programmed solution for the 2010-2012 Cadillac CTS. It is also compatible with a wide range of other GM vehicles, replacing part numbers 20850927, 20791901, 20827745, and 20877116. Please provide your VIN upon purchase to ensure we flash the correct software for your specific vehicle. While this part fits many models, this listing is specifically for the 2010-2012 CTS Fuel Module application. Other compatible models include various years of the Escalade, Silverado, Tahoe, Sierra, Yukon, Acadia, and more. Confirming with your VIN is the best way to guarantee perfect compatibility.
Frequently Asked Questions
Do I need to get this module programmed by a dealer?
No. The main benefit of our service is that we program the module to your vehicle’s specific VIN before we ship it. This makes it a true plug-and-play installation, saving you time and money.
Where is the FSCM located on my 2011 CTS?
On the 2010-2012 Cadillac CTS, the Fuel System Control Module is typically found in the trunk, behind the trim panel on the driver’s side (LH rear compartment).
What happens if I don’t provide my VIN?
Providing your VIN is mandatory for this purchase. We cannot program the module without it, which would delay your order. The programming ensures the module communicates correctly with your car’s other systems.
Is this part the same as a fuel pump driver module?
Yes, Fuel System Control Module (FSCM) and Fuel Pump Driver Module (FPDM) are terms often used interchangeably for the same component. It controls the voltage supplied to the fuel pump.
Will this fix a P069E trouble code?
A P069E code (Fuel Pump Control Module Commanded On) is a very common indicator of a failing FSCM. While you should always perform a full diagnosis, replacing a faulty FSCM is the most frequent fix for this code.
What tools do I need for the installation?
For a Cadillac CTS, you’ll typically only need basic hand tools like a socket set and trim removal tools to access and replace the module in the trunk. No special diagnostic equipment is required.