Is your 2010-2012 Buick Enclave experiencing frustrating and unpredictable issues like engine stalling, hesitation during acceleration, or a complete no-start condition? Before you suspect a failing fuel pump, the real culprit is often the Fuel System Control Module (FSCM). As an experienced technician, I’ve seen this exact scenario hundreds of times. This module is the brain behind your fuel delivery system, and when it fails, it can leave you stranded without warning. This is a direct-fit, VIN-programmed replacement that restores factory performance and reliability, getting you back on the road with confidence.
This isn’t just a part in a box; it’s a complete solution. We take the hassle and expense out of the repair by pre-programming this module to your vehicle’s specific VIN. This means you can skip the dealership appointment and the costly programming fees. Once you receive it, it’s ready for a straightforward installation. By replacing your faulty unit with this professionally programmed 2010-2012 Enclave FSCM, you’re not just fixing a problem—you’re ensuring your vehicle’s fuel system operates precisely as the manufacturer intended.
A Technician’s Notebook: The Intermittent Stall Case
A customer brought in their 2011 Chevy Tahoe, a vehicle that shares this FSCM with your Enclave. The complaint was intermittent stalling at low speeds and an occasional long crank time. No check engine light was on, making it a tricky diagnosis. We could have chased our tails checking fuel pressure, but experience pointed elsewhere. These FSCMs are often mounted on the frame rail, exposed to road salt, water, and vibration. I put the truck on the lift, and one look at the module told the story. The casing was swollen and the connectors showed signs of corrosion. A new, pre-programmed FSCM fixed the issue in under 30 minutes. The original fuel pump was perfectly fine—a classic case of misdiagnosis that could have cost the owner hundreds more.
Common Signs of a Failing FSCM
If you’re noticing any of these symptoms, a failing Fuel System Control Module is a highly likely cause. A faulty module can also trigger specific Diagnostic Trouble Codes (DTCs).
- ✔ Engine cranks but will not start
- ✔ Stalling, especially at idle or low speeds
- ✔ Reduced engine power and poor acceleration
- ✔ Check Engine Light with codes like P069E, U0109, or P0230
- ✔ Inconsistent fuel gauge readings or pump performance
A Straightforward Guide to Installation
Installing your new 2010-2012 Enclave FSCM is a job most DIYers can handle with basic tools. On the Enclave, it’s typically located on the rear crossmember, making it accessible without dropping the fuel tank.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the Module: Find the old FSCM mounted to the vehicle’s frame or crossmember. On many GM SUVs and trucks, it’s on the driver-side frame rail near the spare tire.
- Disconnect and Remove: Carefully unplug the electrical connectors. Note their orientation. Then, unbolt the module from the frame. These bolts can be rusty, so a little penetrating oil might help.
- Install the New Module: Bolt the new, pre-programmed FSCM into place. Reconnect the electrical harnesses, ensuring they click securely into place.
- Final Steps: Reconnect the negative battery terminal. The vehicle may require a few key cycles or a short drive for all systems to re-learn. Your vehicle is now ready to go!
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 20827745, 20791901, 20877116, and 20850927. It fits a wide range of GM vehicles. Please verify your model and year below.
AVALANCHE 1500 10-12 (LH frame rail)
CANYON 10-12 (rear center frame)
CAPTIVA SPORT 12 (LH rear compartment)
COLORADO 10-12 (rear center frame)
CTS 10-12 (LH rear compartment)
ENCLAVE 10-12 (rear crossmember)
ESCALADE / ESV / EXT 10-12 (LH frame rail)
EXPRESS 1500 VAN 10-12 (LH frame rail)
HUMMER H3 10 (rear frame)
IMPALA 12 (RH rear quarter panel)
LACROSSE 10-12 (RH rear trunk)
OUTLOOK 10
REGAL 11-12 (LH rear quarter interior)
SAVANA 1500 VAN 10-12 (LH frame rail)
SIERRA 1500 / DENALI 1500 10-12 (LH frame rail)
SILVERADO 1500 PICKUP 10-12 (LH frame rail)
SUBURBAN 1500 10-12 (LH frame rail)
TAHOE 10-12 (LH frame rail)
TRAVERSE 10-12 (rear crossmember)
VUE 10 (RH rear engine compartment)
YUKON / YUKON XL 1500 10-12 (LH frame rail)
Frequently Asked Questions
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the programming before we ship the part. You just need to provide your vehicle’s 17-digit VIN during checkout. It arrives ready to install.
Is this a genuine GM part?
This is a high-quality replacement module that is programmed with the latest official GM software updates for your specific vehicle, ensuring proper function and compatibility.
Where is the FSCM located on my 2011 Enclave?
On the 2010-2012 Buick Enclave, the Fuel System Control Module is typically mounted to the rear crossmember, making it more accessible than on some trucks where it’s on the frame rail.
Will this fix a P069E code?
Yes, a faulty FSCM is the most common cause of a P069E (Fuel Pump Control Module Requested MIL Illumination) trouble code. Replacing it with this programmed unit is the correct fix for that issue.
What happens if I don’t provide my VIN?
We cannot ship the module without your VIN. The programming is essential for the part to communicate with your vehicle’s other computers. We will contact you after your purchase to get the VIN if you forget to provide it.