Restore Your Vehicle’s Performance and Reliability
Is your 2010-2012 Escalade or other GM vehicle suddenly stalling, hesitating, or refusing to start? Before you condemn the fuel pump, the real culprit is often the Fuel System Control Module (FSCM), also known as a fuel pump driver module. As a technician with over two decades of experience, I’ve seen countless cases where these modules fail, leaving drivers stranded. The issue is often its location—mounted on the frame rail, it’s constantly exposed to water, salt, and road debris, leading to corrosion and internal failure.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the hassle and expense out of the repair by pre-programming this module to your vehicle’s specific Vehicle Identification Number (VIN). Simply provide us with your VIN after purchase, and we’ll flash the module with the latest GM factory software. This means you can skip the costly trip to the dealership for programming. You get a part that works correctly right out of the box, restoring proper fuel pressure and engine performance.
A Technician’s Notebook: The Intermittent Stall Case
A customer brought in a 2011 Yukon XL that would randomly stall at low speeds. No check engine light, no consistent codes—just a frustrating, unpredictable problem. We checked fuel pressure, which was erratic. Instead of immediately replacing the expensive in-tank fuel pump, I went straight for the FSCM on the driver’s side frame rail. The connectors were green with corrosion and the module case was swollen. A new, programmed module fixed it in 15 minutes. This is why I always check the FSCM first on these GM trucks; it saves time, money, and solves the problem correctly the first time.
Is Your Vehicle Showing These Symptoms?
- âś” Sudden engine stalling, especially at idle or low speeds
- âś” No-start or extended cranking condition
- âś” Reduced engine power and hesitation during acceleration
- âś” An active Check Engine Light with codes like P069E (Fuel Pump Control Module Requested MIL Illumination), U0109 (Lost Communication with Fuel Pump Control Module), or P0230 (Fuel Pump Primary Circuit Malfunction)
- âś” A whining noise from the fuel pump as it runs continuously at full power
A Straightforward Guide to Installation
- âś” Safety First: Disconnect the negative terminal from your vehicle’s battery.
- âś” Locate the Module: Find the old FSCM. On most GM trucks and SUVs (like the Escalade, Tahoe, and Silverado), it’s mounted to the driver-side frame rail, typically above the spare tire.
- âś” Disconnect and Remove: Carefully unplug the electrical connectors. Be gentle, as the plastic clips can become brittle. Then, remove the bolts holding the module to the frame.
- âś” Install the New Module: Bolt your new, pre-programmed FSCM into the same location. Apply a small amount of dielectric grease to the connector pins to protect against future corrosion.
- âś” Reconnect: Securely plug in the electrical connectors until they click.
- âś” Final Step: Reconnect the negative battery terminal. Start the vehicle to confirm the repair is complete. No further programming is needed!
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 20791901, 20827745, 20877116, and 20850927. It fits a wide range of GM vehicles. Please verify your model and year below. Note that location can vary.
- Cadillac Escalade / ESV / EXT (2010-2012)
- Chevrolet Avalanche / Silverado / Suburban / Tahoe 1500 (2010-2012)
- GMC Sierra / Yukon / Yukon XL 1500 (2010-2012)
- Buick Enclave / LaCrosse / Regal (2010-2012)
- Chevrolet Colorado / Traverse / Captiva Sport / Impala (2010-2012)
- GMC Acadia / Canyon (2010-2012)
- Chevrolet Express / GMC Savana 1500 Van (2010-2012)
- And many more models listed in the fitment data.
Frequently Asked Questions
Do I need to get this module programmed by a dealer?
No. This is the biggest benefit of our service. We program the module to your specific VIN before we ship it, so it’s ready for a true plug-and-play installation.
How do I give you my VIN?
After you complete your purchase, simply send us a message with your 17-digit VIN. We cannot ship the part until we receive this information for programming.
What does the Fuel System Control Module (FSCM) do?
The FSCM controls the voltage sent to your electric fuel pump. By varying the voltage, it precisely regulates fuel pressure for optimal engine efficiency and performance, which is a significant improvement over older, single-speed fuel pump systems.
Where is this part located on my 2011 Escalade?
On the 2010-2012 Escalade and similar GM trucks/SUVs, the FSCM is typically bolted to the inside of the driver’s side frame rail, often near or above the spare tire area.
Is this compatible with other part numbers?
Yes, this module is a direct replacement for several part numbers, including 20791901, 20827745, 20877116, and 20850927.