Is Your GM Truck or SUV Stalling or Not Starting?
If your 2010-2012 Silverado, Tahoe, Escalade, or other GM vehicle is suddenly stalling, refusing to start, or displaying a ‘Service Fuel System’ message, the culprit is often a failed Fuel System Control Module (FSCM). In my 20+ years as a technician, I’ve seen this exact scenario play out hundreds of times. Many owners mistakenly replace the entire in-tank fuel pumpโa costly and difficult jobโonly to discover the problem remains. The issue is frequently this small, but critical, electronic module.
This is a direct-fit replacement FSCM that solves these common issues. The best part? We program it to your vehicle’s specific VIN before shipping. This means it arrives at your door ready for a true plug-and-play installation, saving you from an expensive trip to the dealership for programming.
Why a VIN-Programmed GM Fuel Control Module is Essential
The FSCM is not a simple on/off switch; it’s the brain that precisely manages your fuel pump. It receives commands from the Engine Control Module (ECM) and varies the voltage to the pump, ensuring correct fuel pressure under all driving conditions. Because it’s a ‘smart’ component integrated into your vehicle’s network, a new module must be loaded with the correct software for your specific VIN. A non-programmed module simply will not function. We take care of this critical step for you, ensuring a seamless repair.
From the Shop Floor: “A customer’s 2011 Sierra 1500 came in last week with a classic crank-no-start condition. He’d already spent a weekend replacing the fuel pump himself, but the truck was still dead. A quick scan with my tool revealed diagnostic code P069E (Fuel Pump Control Module Commanded OFF). We found the original FSCM on the frame rail, its aluminum casing swollen and corroded. After installing one of our pre-programmed modulesโa 15-minute jobโthe truck fired right up. He could have saved himself a lot of time, money, and frustration by diagnosing the FSCM first.”
Symptoms of a Failing Fuel System Control Module:
- โ Engine cranks but will not start
- โ Vehicle stalls unexpectedly while driving
- โ Hesitation or sputtering during acceleration
- โ Reduced engine power and poor performance
- โ Check Engine Light with codes P069E, P0230, or U0109
- โ ‘Service Fuel System’ warning message on the instrument cluster
Plug-and-Play Installation: No Dealer Visit Required
You can do this job yourself with basic hand tools. While the location varies slightly by model, the process is straightforward.
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the FSCM: On most trucks and large SUVs (Silverado, Yukon, etc.), you’ll find it mounted to the driver-side frame rail, often near the spare tire. On cars and crossovers (CTS, Acadia), it may be in the trunk area or on a rear crossmember.
- Disconnect and Remove: Carefully unplug the main electrical harness. Then, unbolt the old, faulty module from its mounting bracket.
- Install the New Module: Bolt your new, pre-programmed module into place. Firmly reconnect the electrical connector until it clicks.
- Final Steps: Reconnect the negative battery terminal. The vehicle is now ready to start with no further programming needed.
Expert Pro Tip: The primary cause of FSCM failure is exposure to the elements. Road salt and moisture corrode the aluminum housing and the electrical connector pins. Before installing your new module, use a small brush and electrical contact cleaner to clean the vehicle’s harness connector. Applying a thin layer of dielectric grease to the connector’s weather seal will help prevent future moisture intrusion and ensure a reliable connection.
This module is a direct replacement for part numbers 20791901, 20827745, 20877116, and 20850927. Please provide your 17-digit VIN upon checkout so we can ensure you receive a module programmed for a perfect, hassle-free installation.