Restore Your Truck’s Power and Reliability
Is your 2010-2012 GMC Sierra 1500 experiencing frustrating issues like engine stalling, hesitation on acceleration, or a dreaded no-start condition? Before you condemn the fuel pump, the real culprit is often the Fuel System Control Module (FSCM). This critical component, also known as a fuel pump driver module, regulates the voltage sent to the fuel pump, ensuring your engine gets the precise amount of fuel it needs. When it fails, it can mimic a bad fuel pump, leading to costly and incorrect repairs.
This is a direct-replacement Sierra 1500 Fuel Control Module, solving these common issues permanently. The best part? We handle the programming for you. Simply provide your vehicle’s VIN during checkout, and our experts will flash the module with the latest GM-certified software. It arrives at your door ready for a true plug-and-play installation, saving you hundreds of dollars and the hassle of a dealership visit.
Case Study: The $800 Misdiagnosis
I remember a customer bringing his 2011 Silverado into the shop, completely frustrated. He’d spent over $800 at another garage replacing the in-tank fuel pump, but his truck still randomly stalled at red lights and showed ‘Engine Power Reduced’ on the dash. He was ready to sell the truck. I hooked up my scan tool and immediately saw code U0109 – ‘Lost Communication with Fuel Pump Control Module’. A quick check confirmed the FSCM, mounted on the frame rail and exposed to years of road salt and moisture, had failed internally. We installed one of these pre-programmed modules in under 30 minutes. The truck ran perfectly, and the customer was both relieved and a bit upset he’d wasted money on a fuel pump he didn’t need. This story is why I always tell my customers to check the FSCM first.
Is Your Truck Showing These Symptoms?
A failing FSCM can cause a variety of symptoms that are often misdiagnosed. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Engine cranks but will not start
- ✔ Stalling, especially when coming to a stop or under load
- ✔ Hesitation or stumbling during acceleration
- ✔ ‘Reduced Engine Power’ message on the instrument cluster
- ✔ Check Engine Light with diagnostic trouble codes (DTCs) such as P069E, P0230, or U0109
- ✔ A fuel pressure test shows low or inconsistent pressure
A Straightforward Guide to Installation
Getting your Sierra back on the road is easier than you think. This is a common DIY job that can be done with basic hand tools.
- Safety First: Disconnect the negative terminal from your truck’s battery to prevent any electrical shorts.
- Locate the Module: On most GM trucks like the Sierra, the FSCM is mounted to the driver’s side frame rail, typically near the spare tire.
- Disconnect and Remove: Carefully unplug the electrical connectors. Be gentle to avoid breaking the locking tabs. Then, unbolt the old module from the frame.
- Install the New Module: Bolt the new, pre-programmed FSCM into the same location. Ensure it’s mounted securely.
- Reconnect Everything: Plug the electrical connectors firmly into the new module. You should hear a ‘click’ as they lock into place. Reconnect the negative battery terminal.
- Final Check: Start the vehicle. It may take a few extra seconds of cranking for the fuel system to re-pressurize. Your check engine light should be off, and the truck should run smoothly.
Verified Vehicle Compatibility
This module is a direct fit for a wide range of General Motors vehicles. It is a compatible replacement for part numbers 20791901, 20827745, 20877116, and 20850927. Please verify your vehicle and options from the list below. The ID number or specific option notes are critical for a correct match.
Fits Models Including:
- GMC Sierra 1500 / Denali 1500 (2010-2012)
- Chevrolet Silverado 1500 (2010-2012)
- Chevrolet Avalanche 1500 (2010-2012)
- Cadillac Escalade / ESV / EXT (2010-2012)
- Chevrolet Tahoe (2010-2012)
- GMC Yukon / XL 1500 (2010-2012)
- Chevrolet Suburban 1500 (2010-2012)
- GMC Canyon / Chevrolet Colorado (2010-2012)
- Buick Enclave / LaCrosse / Regal (2010-2012)
- Cadillac CTS (2010-2012)
- And many more… (Please consult the full fitment list or contact us with your VIN)
Frequently Asked Questions
What is a Fuel System Control Module (FSCM)?
The FSCM, or fuel pump driver module, is a small computer that controls the speed and voltage of your vehicle’s electric fuel pump. This ensures the engine receives the correct fuel pressure under all driving conditions for optimal performance and efficiency.
Why does this module need to be programmed?
Modern vehicle modules are coded specifically to your car’s Vehicle Identification Number (VIN). This programming ensures the FSCM communicates correctly with the main engine computer (ECM) and other vehicle systems. Our pre-programming service makes this a simple, plug-and-play repair.
Is this a difficult part to replace myself?
For most DIYers with basic tools, this is a very manageable job. On the 2010-2012 Sierra 1500, the module is located on the outside of the frame rail, making it accessible without removing major components. See our installation guide above for the basic steps.
How do I give you my VIN for programming?
After you complete your purchase, you will receive an email with instructions. Simply reply to that email with your 17-digit VIN, and we will program the module before shipping it out.
Will this fix my P069E check engine light code?
Yes, in the vast majority of cases, a faulty FSCM is the direct cause of code P069E (Fuel Pump Control Module Requested MIL Illumination). Replacing it with this pre-programmed unit is the correct fix for that code.