Restore Your Truck’s Power and Reliability
Is your 2010-2012 Sierra 1500 experiencing frustrating issues like stalling, hesitation, or a complete no-start condition? Before you consider replacing the entire fuel pump, the culprit is often a faulty Fuel System Control Module (FSCM). This critical component, also known as a fuel pump driver module, regulates the voltage sent to your fuel pump. When it fails, it can starve your engine of fuel, leading to a host of performance problems and leaving you stranded. This isn’t just an inconvenience; it’s a reliability issue that needs a definitive solution.
We offer a simple, direct-fit solution. This FSCM is meticulously tested and comes pre-programmed with the latest GM software, specifically matched to your truck’s VIN. This means you can skip the expensive trip to the dealership for programming. It arrives at your door ready for a true plug-and-play installation, getting you back on the road with confidence.
From the Diagnostic Bay: The Sierra That Wouldn’t Stay Running
A customer brought in a 2011 Sierra 1500 that would start fine but stall randomly, especially when towing his boat. He’d already replaced the in-tank fuel pump, but the problem persisted. A quick scan with my diagnostic tool revealed code P069E – Fuel Pump Control Module Requested MIL Illumination. Instead of throwing more parts at it, we inspected the FSCM on the driver-side frame rail. It showed signs of corrosion from road salt and moisture. After installing one of our VIN-programmed modules, the code vanished and the truck ran perfectly under load. It’s a classic case I’ve seen dozens of times; the module fails far more often than the pump itself on these trucks.
Is Your Truck Showing These Symptoms?
A failing FSCM can manifest in several ways. If you’re noticing any of the following, this module is the likely solution.
- ✔ Engine cranks but won’t start
- ✔ Stalling during acceleration or while idling
- ✔ Significant loss of engine power
- ✔ Rough or inconsistent idle
- ✔ Check Engine Light is on with codes like P069E, P0230, or U0109 (Lost Communication With Fuel Pump Control Module)
A Straightforward Guide to Installation
You don’t need to be a master mechanic to replace this module. With basic hand tools, you can have your truck running smoothly in under an hour. For most GM trucks and SUVs, the module is located on the driver-side frame rail, near the spare tire.
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the Module: Find the old FSCM mounted to the outside of the frame rail. It’s a small silver box with electrical connectors.
- Disconnect and Remove: Carefully unplug the electrical harnesses. Then, remove the bolts or nuts holding the module to the frame and take the old unit off.
- Install the New Module: Mount your new, pre-programmed FSCM in the same location using the original hardware.
- Reconnect: Securely plug the electrical connectors into the new module. You’ll hear a click when they are properly seated.
- Final Step: Reconnect the negative battery terminal. Start the engine and verify that the vehicle runs smoothly and the check engine light is off.
Will This Fit My Vehicle?
This module is a direct replacement for a wide range of General Motors vehicles. It is compatible with part numbers 20791901, 20827745, 20877116, and 20850927. Please verify your vehicle is on the list below. IMPORTANT: After purchase, you must provide your VIN so we can program the module correctly before shipment.
- Acadia: 2010-2012
- Avalanche 1500: 2010-2012
- Canyon / Colorado: 2010-2012
- Captiva Sport: 2012
- CTS: 2010-2012
- Enclave: 2010-2012
- Escalade / ESV / EXT: 2010-2012
- Express / Savana 1500 Van: 2010-2012
- Hummer H3: 2010
- Impala: 2012
- LaCrosse: 2010-2012
- Outlook: 2010
- Regal: 2011-2012
- Sierra / Silverado 1500 Pickup: 2010-2012
- Sierra Denali 1500: 2011-2012
- Suburban 1500: 2010-2012
- Tahoe: 2010-2012
- Traverse: 2010-2012
- Vue: 2010
- Yukon / Yukon XL 1500: 2010-2012
Frequently Asked Questions
What does the Fuel System Control Module (FSCM) do?
The FSCM acts as a smart relay for your fuel pump. It receives commands from the Engine Control Module (ECM) and precisely controls the voltage and speed of the fuel pump to deliver the exact amount of fuel the engine needs. This is more efficient than older systems that ran the pump at full speed constantly.
Why is VIN programming so important?
Each vehicle has specific software parameters. Programming the module to your VIN ensures it communicates correctly with your truck’s other computers and operates with the latest, most efficient software from GM. This prevents compatibility issues and ensures optimal performance.
How do I provide my VIN after I order?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive this information for programming.
My old part has a different number on it. Will this still work?
Yes, as long as your old part number is 20791901, 20877116, or 20850927, this module is the correct, updated replacement. GM often consolidates part numbers over time.
Is this a difficult part to install myself?
Not at all. For most trucks and SUVs, it’s located on the frame rail and is accessible with basic hand tools. Since we pre-program it, there’s no complex software work needed on your end. It’s a true plug-and-play repair.