Restore Your Yukon’s Reliability and Performance
Is your 2010-2012 GMC Yukon XL 1500 suddenly stalling, hesitating, or refusing to start? Before you condemn the fuel pump, the real culprit is often the Fuel System Control Module (FSCM). As an experienced technician, I’ve seen this exact scenario countless times. This critical component regulates the voltage to your fuel pump, and when it fails, it can cause a host of frustrating and intermittent issues that leave you stranded. This isn’t just a replacement part; it’s a complete, ready-to-install solution for your vehicle.
We take the guesswork and extra cost out of the repair. Each module is professionally programmed with the latest GM software updates specifically for your vehicle’s VIN. This means you can skip the expensive trip to the dealership for programming. You get a direct-fit part that works correctly right out of the box, restoring your engine’s fuel delivery to factory specifications.
A Technician’s Notebook
I remember a 2011 Sierra 1500 (which uses the same system as your Yukon) that came into my shop on a tow truck. The owner had already replaced the fuel pump himself, but the truck still wouldn’t run for more than a few seconds before sputtering out. He was convinced he got a bad pump. I hooked up my scan tool and saw DTC U0109 – Lost Communication with Fuel Pump Control Module. A quick check of the wiring confirmed it was good. The FSCM, located on the frame rail, had failed internally due to years of exposure to road salt and moisture. We installed a pre-programmed module, and the truck fired right up and ran perfectly. It’s a classic case where diagnosing the system, not just the part, saves time and money.
Is Your Truck Showing These Symptoms?
- âś” Engine cranks but won’t start
- âś” Stalling, especially under load or when coming to a stop
- âś” Hesitation or stumbling during acceleration
- âś” Reduced engine power and poor fuel economy
- âś” Check Engine Light with codes like P069E, P025A, or U0109
DIY-Friendly Installation Guide
- âś” Safety First: Disconnect the negative terminal from your vehicle’s battery.
- âś” Locate the Module: Find the FSCM mounted on the driver’s side frame rail, typically near the spare tire.
- âś” Disconnect and Remove: Carefully unplug the electrical connectors. Then, remove the bolts or nuts holding the old module to the frame.
- âś” Install the New Module: Mount your new, pre-programmed FSCM in the same location and secure it with the original hardware.
- âś” Reconnect: Plug the electrical connectors firmly into the new module. You should hear a click.
- âś” Final Step: Reconnect the negative battery terminal. Start the vehicle to confirm the repair is complete.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 20791901, 20827745, 20877116, and 20850927. It is guaranteed to fit a wide range of GM vehicles. While this listing is for the 2010-2012 Yukon XL 1500 FSCM, it also fits the following models. Please verify your specific part number or contact us with your VIN.
- Cadillac: Escalade, Escalade ESV, Escalade EXT (2010-2012), CTS (2010-2012)
- Chevrolet: Avalanche 1500 (2010-2012), Captiva Sport (2012), Colorado (2010-2012), Express 1500 Van (2010-2012), Impala (2012), Silverado 1500 (2010-2012), Suburban 1500 (2010-2012), Tahoe (2010-2012), Traverse (2010-2012)
- GMC: Acadia (2010-2012), Canyon (2010-2012), Savana 1500 Van (2010-2012), Sierra 1500 & Denali 1500 (2010-2012), Yukon & Yukon XL 1500 (2010-2012)
- Buick: Enclave (2010-2012), LaCrosse (2010-2012), Regal (2011-2012)
- Hummer: H3 (2010)
- Saturn: Outlook (2010), Vue (2010)
Frequently Asked Questions
Why do you need my VIN?
Your VIN is required to program the module with the exact software and calibrations for your specific vehicle. This ensures perfect communication with your engine computer (ECM) and proper fuel system operation, eliminating the need for a dealer visit.
Is this a difficult part to install myself?
No, this is a very straightforward installation for a DIY enthusiast. The module is typically located on the frame rail and held on by a few bolts. Since it comes pre-programmed, it’s a true plug-and-play repair.
How is this different from a module from the auto parts store?
Standard parts store modules are sold blank. You would still need to take your vehicle to a dealership or a shop with advanced tools to have it programmed, adding significant cost and hassle to the repair. Ours arrives ready to install.
Can a bad FSCM drain my battery?
Yes, in some cases a failing FSCM can stay active after the vehicle is turned off, causing a parasitic draw that can drain the battery overnight. Replacing it can solve this issue as well.
What happens if I don’t provide a VIN?
We cannot ship the module without a VIN. The programming is essential for the part to function in your vehicle. Please provide your VIN during checkout or send it to us in a message to avoid delays with your order.