If your 2010-2012 Buick Enclave is suddenly stalling, cranking but not starting, or throwing confusing check engine light codes, you’ve likely pinpointed a common and frustrating issue: a failing Fuel System Control Module (FSCM). This isn’t just an inconvenience; it’s a reliability problem that can leave you stranded. This module is the nerve center for your vehicle’s fuel delivery, and when it fails, the fuel pump doesn’t get the right commands, leading to poor engine performance or a complete no-start condition.
We offer a dependable and straightforward solution. This FSCM is a direct-fit replacement for part number 20827745 and compatible equivalents. The best part? We handle the programming for you. Simply provide your vehicle’s VIN at checkout, and our technicians will flash the module with the latest, most stable software from GM. It arrives at your door ready to install, saving you from a costly and time-consuming trip to the dealership for programming.
A Technician’s Notebook
I remember a 2011 Enclave that came into the shop on a tow truck. The owner was frustrated because he had just replaced the fuel pump himself, but the vehicle still wouldn’t start. He was convinced he got a bad pump. After connecting my scanner, I saw no communication with the fuel module (DTC U0109). A quick check of the wiring confirmed it was good. The culprit was the original FSCM, which had failed internally. These modules are often exposed to the elements, mounted on the frame rail or crossmember, leading to corrosion and failure. We installed one of our pre-programmed units, and the Enclave fired right up. It’s a classic case where diagnosing the system, not just the most obvious part, saves time and money.
Is Your Enclave Showing These Signs of a Bad FSCM?
A faulty module can mimic other fuel system problems. Here’s what to look for when diagnosing your vehicle. A failing 2010-2012 Enclave FSCM often presents with these specific symptoms:
- ✔ Engine cranks but will not start
- ✔ Stalling, especially under load or when coming to a stop
- ✔ Rough idling or hesitation during acceleration
- ✔ Reduced engine power and poor fuel economy
- ✔ Illuminated Check Engine Light with codes like P069E, U0109, or P0230
Straightforward Installation to Get You Running Again
This module is designed for an easy installation process that a confident DIYer or any professional mechanic can complete quickly. For the 2010-2012 Enclave, the FSCM is typically located on the rear crossmember.
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the Module: Safely raise the vehicle and find the FSCM mounted to the frame or crossmember, often near the spare tire.
- Disconnect and Remove: Carefully unplug the electrical connectors. Then, unbolt the old module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed FSCM into place and securely reconnect the electrical connectors.
- Final Steps: Reconnect the battery terminal. The vehicle is now ready to start with no additional programming required.
Will This Fit My Vehicle?
This module is a guaranteed fit for a wide range of General Motors vehicles. While this listing is for the 2010-2012 Enclave FSCM, it also fits many other models. Please verify your part number or consult the list below. This module is a direct replacement for part numbers 20791901, 20827745, 20877116, and 20850927.
- Buick: Enclave (2010-12), LaCrosse (2010-12), Regal (2011-12)
- Cadillac: CTS (2010-12), Escalade / ESV / EXT (2010-12)
- Chevrolet: Avalanche 1500 (2010-12), Captiva Sport (2012), Colorado (2010-12), Express 1500 (2010-12), Impala (2012), Silverado 1500 (2010-12), Suburban 1500 (2010-12), Tahoe (2010-12), Traverse (2010-12)
- GMC: Acadia (2010-12), Canyon (2010-12), Savana 1500 (2010-12), Sierra 1500 / Denali 1500 (2010-12), Yukon / XL 1500 (2010-12)
- Hummer: H3 (2010)
- Saturn: Outlook (2010), Vue (2010)
Frequently Asked Questions
What exactly does this module do?
The Fuel System Control Module (FSCM), also known as a Fuel Pump Driver Module, regulates the voltage sent to your vehicle’s fuel pump. This ensures the pump delivers the precise amount of fuel the engine needs under all operating conditions, optimizing both performance and efficiency.
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the module with the exact software and calibrations specific to your vehicle’s factory configuration. This makes the part truly plug-and-play and ensures it communicates correctly with your car’s other computers, like the ECM.
Is this really a plug-and-play installation?
Yes. Because we program the module to your VIN before shipping, you will not need to take it to a dealership or mechanic for any additional computer work. Simply install the part, and you’re ready to go.
How can I confirm this is the right part for my car?
The best way is to match the part number from your original module. This FSCM replaces part numbers 20827745, 20791901, 20877116, and 20850927. You can also use the compatibility list provided or send us a message with your VIN for confirmation.