Is Your GM Truck or SUV Stalling, Hesitating, or Refusing to Start?
There’s nothing more frustrating than a vehicle you can’t rely on. If your GMC Savana, Chevy Silverado, Tahoe, or other compatible GM vehicle is suddenly stalling, running rough, or won’t start at all, a faulty Fuel System Control Module (FSCM) is a very likely culprit. This critical component, often called the fuel pump driver module, regulates the voltage to your fuel pump. When it fails, it starves your engine of fuel, leaving you stranded. This Programmed 20791901 Fuel System Control Module is the definitive, hassle-free solution to get you back on the road with confidence.
Common Symptoms & Your Solution
A failing FSCM can trigger a range of confusing issues. You might be experiencing:
- Engine stalling, especially under load
- Intermittent or complete no-start conditions
- Engine hesitation or stumbling during acceleration
- Reduced engine power and poor performance
- A Check Engine Light with codes like P069E, P0230, P0606, or U0109
Don’t waste time and money chasing the wrong parts. This module is the direct answer to these common GM fuel system problems. Best of all, we eliminate the most difficult part of the repair. We pre-program the module to your vehicle’s specific Vehicle Identification Number (VIN) before it ships, saving you a costly and time-consuming trip to the dealership.
Features & Real-World Benefits
- โ Plug & Play Installation: This module arrives pre-flashed to your VIN. No expensive dealer programming or specialized scan tools are required. Simply mount it, plug it in, and turn the key.
- โ Restores Dependable Performance: By delivering the correct voltage to the fuel pump, this module restores proper fuel pressure, fixing stalling, hesitation, and no-start issues at the source.
- โ Updated GM Software: We flash each module with the latest stable software updates from GM, helping to address the original issues that may have caused the failure.
- โ Direct OE-Fit Replacement: Engineered to be a perfect match for the original, it mounts in the factory location for a straightforward installation. It is a direct replacement for part numbers 20791901, 20827745, 20877116, and 20850927.
- โ This unit is backed by our one-year replacement warranty.
An Expert’s Insight on FSCM Failure
As a technician, I’ve replaced hundreds of these modules on GM trucks and SUVs. The number one cause of failure is their location. On most of these vehicles, the FSCM is bolted directly to the frame rail, exposed to everything the road throws at itโwater, road salt, mud, and debris. Over time, moisture seeps past the seals and corrodes the delicate internal circuit board, leading to erratic behavior and eventual failure. When you install your new module, consider applying a thin layer of dielectric grease to the connector to add an extra barrier of protection against the elements. This simple step can significantly extend the life of the component.
Frequently Asked Questions
Do I need to take this module to a dealer to be programmed?
Absolutely not. The main benefit of our service is that we program the module to your specific VIN before we ship it to you. It arrives ready for a true plug-and-play installation, saving you time and money.
What information do you need from me after I order?
After you complete your purchase, you will need to provide us with your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we have this information to program it correctly.
Where is the FSCM located on my truck or SUV?
On the vast majority of compatible GM trucks, vans, and SUVs (like the Silverado, Sierra, Tahoe, Savana), the module is located on the driver’s side frame rail, typically above the spare tire. It’s a small silver box with a single large electrical connector.
Will this fix the Check Engine Light code P069E?
Yes, a faulty FSCM is the most common cause of a P069E (Fuel Pump Control Module Commanded Performance) trouble code. Replacing it with this Programmed 20791901 Fuel System Control Module is the standard, effective repair for this issue.
My original module has a different part number on it. Will this still work?
Please check the list of compatible part numbers in our description. This module is a direct, interchangeable replacement for 20791901, 20827745, 20877116, and 20850927. As long as your original number is on that list, this part will work perfectly.