Restore Power and Reliability to Your GM Truck or SUV
Is your 2010-2012 Avalanche 1500 experiencing sudden stalling, a crank-no-start condition, or a persistent Check Engine Light? Before you condemn the fuel pump, the real culprit is often a faulty Fuel System Control Module (FSCM). This vital component, also known as a fuel pump driver module, regulates the voltage sent to the fuel pump. When it fails, it can starve your engine of fuel, leading to a range of frustrating and potentially dangerous performance issues. This isn’t just an inconvenience; it’s a critical failure that can leave you stranded without warning.
We offer a dependable, direct-fit solution with this Fuel System Control Module. The best part? It arrives at your door fully programmed to your vehicle’s specific VIN with the latest GM software updates. This eliminates the need for an expensive trip to the dealership for programming. You get a component that is ready for installation right out of the box, saving you significant time and money. This is the definitive fix for a failing Avalanche 1500 FSCM, getting you back on the road with confidence.
A Technician’s Notebook: The Misleading Fuel Pump
I’ll never forget a 2011 Sierra 1500 that came into my bay on a tow truck. The owner had already replaced the in-tank fuel pump himself, but the truck still wouldn’t start. He was frustrated and out a few hundred dollars. His scanner showed a U0109 code—Lost Communication With Fuel Pump Control Module. We put the truck on the lift, and a quick inspection of the FSCM on the frame rail showed heavy corrosion on the casing and connector. Water intrusion had shorted the board. We installed one of our pre-programmed modules, and the truck fired up on the first try. It’s a classic scenario; the FSCM is exposed to the elements and is often the first point of failure in the fuel delivery circuit.
Is Your Vehicle Showing These Symptoms?
- âś” Engine cranks but will not start.
- âś” Stalling while driving, especially under load.
- âś” Hesitation or stumbling on acceleration.
- âś” Reduced engine power and performance.
- âś” Check Engine Light with codes like P069E, P0230, or U0109.
- âś” An audible fuel pump that doesn’t prime when the key is turned.
A Straightforward Guide to Installation
- âś” Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- âś” Locate the Module: On most trucks and SUVs like the Avalanche, Silverado, and Tahoe, the FSCM is mounted to the driver’s side frame rail, typically near the spare tire. On other vehicles, it may be in the trunk or rear compartment.
- âś” Disconnect and Remove: Carefully unplug the electrical connector. Then, remove the bolts or nuts securing the old module to the frame or chassis.
- âś” Install the New Module: Mount your new, pre-programmed FSCM in the same location. Ensure it is securely fastened.
- âś” Reconnect: Plug the electrical connector firmly into the new module. You should hear a click.
- âś” Final Steps: Reconnect the negative battery terminal. Turn the key to the ‘On’ position for 10 seconds to allow the system to prime, then start the engine to verify the repair.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of General Motors vehicles and is compatible with part numbers 20791901, 20827745, 20877116, and 20850927. While it is a guaranteed fit for the 2010-2012 Avalanche 1500, it also fits many other models. Please verify your original part number or consult the detailed fitment list. Key compatible models include:
- Chevrolet Silverado 1500 & Suburban 1500
- GMC Sierra 1500 & Yukon / Yukon XL 1500
- Cadillac Escalade, ESV, EXT
- Chevrolet Tahoe
- Chevrolet Colorado / GMC Canyon
- Buick Enclave & LaCrosse
- And many more. Refer to the full list to confirm your specific application.
Replacing your faulty Avalanche 1500 FSCM is a crucial repair for restoring your vehicle’s fuel delivery system to factory specifications. Don’t wait for a complete failure to leave you stranded.
Frequently Asked Questions
Do I need to do any programming after I receive this module?
No. We program the module to your vehicle’s VIN before shipping. It arrives ready for a plug-and-play installation, with no dealer visit required.
How do I provide my VIN?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship the part until we receive this information.
Is this the same as a fuel pump?
No, this is not the fuel pump. This is the electronic control module that tells the fuel pump how much fuel to deliver to the engine. It’s a common point of failure often misdiagnosed as a bad fuel pump.
Where is the FSCM located on my 2011 Avalanche?
On the 2010-2012 Chevrolet Avalanche 1500, the Fuel System Control Module is typically mounted on the outside of the driver-side frame rail, located forward of the rear axle.
Will this fix a P069E code?
Yes, a faulty FSCM is a primary cause of the DTC P069E (Fuel Pump Control Module Requested MIL Illumination). Replacing the module is the correct repair for this code, assuming the wiring and fuel pump are in good condition.
What happens if I install it without programming?
An unprogrammed FSCM will not communicate correctly with your vehicle’s other computers, like the ECM. This will result in a no-start condition and communication error codes. Our pre-programming service solves this entire problem for you.