Restore Power and Reliability to Your GM Truck or SUV
Is your 2010-2012 Avalanche 1500 experiencing frustrating issues like engine stalling, a long crank time before it starts, or a sudden loss of power while driving? Before you condemn the fuel pump, the real culprit is often a faulty Fuel System Control Module (FSCM). This critical component acts as the brain for your fuel pump, regulating its speed and pressure. When it fails, it can mimic a bad fuel pump, leading to expensive and unnecessary repairs. This module is the direct, reliable solution to get your vehicle running smoothly again.
Case Study: A Tricky Diagnosis
I remember a 2011 Sierra 1500 that came into my shop with a classic no-start complaint. The owner had already replaced the in-tank fuel pump himself, but the truck still wouldn’t fire up. He was frustrated and out a few hundred dollars. After hooking up my scan tool, I found code P069E – ‘Fuel Pump Control Module Commanded OFF’. Instead of just throwing another part at it, we checked the FSCM, which is mounted on the driver-side frame rail. It was corroded from years of exposure to road salt and moisture. We installed a new, pre-programmed module, and the truck started instantly. This is a story I’ve seen play out dozens of times; diagnosing the FSCM first can save you time, money, and a major headache.
Is Your Vehicle Showing These Symptoms?
A failing FSCM can cause a range of performance problems. If you’re noticing any of the following, this module is likely the fix you need:
- ✔ Engine cranks but won’t start
- ✔ Stalling, especially when coming to a stop or under load
- ✔ Rough or unstable idle
- ✔ ‘Reduced Engine Power’ message on the dashboard
- ✔ Hesitation or stumbling during acceleration
- ✔ Check Engine Light with codes such as P069E, P025A, or U0109 (Lost Communication with FSCM)
The Plug-and-Play Advantage: No Dealer Visit Required
Typically, replacing an FSCM requires a trip to the dealership for expensive programming. We eliminate that step entirely. When you purchase this module, simply provide us with your vehicle’s VIN. Our technicians will program the unit with the latest GM software specific to your Avalanche 1500 FSCM, ensuring perfect communication and performance. It arrives at your door ready for installation, transforming a complex job into a straightforward, manageable repair for any DIYer or professional mechanic.
A Straightforward Guide to Installation
Installing your new Avalanche 1500 FSCM is a simple process you can do in your own driveway. For most trucks and SUVs like the Avalanche, Silverado, and Tahoe, the module is in an easy-to-access location.
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the Module: Find the old FSCM mounted to the inside of the driver-side frame rail, typically near the spare tire.
- Disconnect and Remove: Unplug the electrical connectors. Be gentle with the locking tabs. Then, unbolt the module from the frame.
- Install the New Module: Bolt the new, pre-programmed module in place and securely reconnect the electrical connectors.
- Final Step: Reconnect the battery terminal. Start the vehicle to confirm the repair is complete and all symptoms are gone.
Verified Vehicle Compatibility
This Fuel System Control Module is a direct-fit replacement for a wide range of General Motors vehicles. It is compatible with part numbers 20791901, 20827745, 20877116, and 20850927. While this listing focuses on the Avalanche 1500 FSCM, it also fits many other popular models. Please verify your part number or consult the list below:
- ✔ Chevrolet Trucks: Avalanche 1500, Silverado 1500, Colorado (2010-2012)
- ✔ GMC Trucks: Sierra 1500, Sierra Denali 1500, Canyon (2010-2012)
- ✔ Chevrolet SUVs & Vans: Tahoe, Suburban 1500, Traverse, Captiva Sport, Express 1500 Van (2010-2012)
- ✔ GMC & Buick SUVs: Yukon, Yukon XL 1500, Acadia, Enclave (2010-2012)
- ✔ Cadillac Trucks & SUVs: Escalade, Escalade ESV, Escalade EXT (2010-2012)
- ✔ Other Models: Hummer H3, Saturn Outlook, Saturn VUE, Buick LaCrosse, Buick Regal, Chevy Impala, Cadillac CTS (check specific years in fitment data)
Frequently Asked Questions
Why do you need my VIN number?
Your vehicle’s VIN (Vehicle Identification Number) allows us to load the exact factory software and calibration files for your specific make, model, and engine. This ensures the module communicates perfectly with your engine computer (ECM) and fuel pump, providing optimal performance and fuel efficiency right out of the box.
Where is this module located on my 2011 Avalanche?
On the 2010-2012 Avalanche, as well as most GM trucks and full-size SUVs, the FSCM is mounted on the inside of the driver-side (LH) frame rail, usually just ahead of the rear axle or near the spare tire.
Is this part difficult to install for a DIYer?
Not at all. Because we handle the programming, this becomes a simple plug-and-play repair. If you can safely access the frame rail and use basic hand tools to unbolt the old module and plug in the new one, you can complete this job in under an hour.
How do I know if my fuel pump or my FSCM is bad?
It can be tricky as symptoms overlap. However, a key indicator is a specific diagnostic trouble code (DTC) like P069E or U0109, which points directly to the FSCM or its communication circuit. Also, FSCMs are known to fail from corrosion due to their exposed mounting location, so a visual inspection can often reveal the problem.
Will this fit other part numbers?
Yes, this module is a direct replacement for several part numbers, including 20791901, 20827745, 20850927, and 20877116. Ordering this part ensures you get a compatible unit for any of those original numbers.