Is Your Truck or SUV Stalling, Sputtering, or Refusing to Start?
You turn the key, and instead of a confident roar, you get a weak crank, a sputter, or worse, nothing at all. The check engine light is on, and a scan tool might show the dreaded P069E, P0230, or U0109 codes. Before you condemn the fuel pump, which is a costly and labor-intensive job, you need to look at the component that tells it what to do: the Fuel System Control Module (FSCM).
In my 20+ years as a technician, I’ve seen hundreds of GM trucks and SUVs from this era towed into the shop with these exact symptoms. More often than not, the culprit is a failed FSCM. On models like the Silverado, Sierra, Tahoe, and Yukon, this module is often mounted on the driver-side frame rail, exposed to years of water, road salt, and grime. This exposure leads to internal corrosion and electronic failure, leaving you stranded.
Real-World Diagnosis: A Customer’s Story
“A customer’s 2011 Silverado 1500 came in last week on the tow truck. It would crank but not start, and the fuel pump wasn’t priming. The owner had already replaced the fuel pump himself, but the problem persisted. A quick check of the FSCM connector revealed heavy green corrosion. The module itself was shot. We installed one of our pre-programmed modules, and the truck fired right up. He could have saved himself a full day of work and the cost of a fuel pump by checking the FSCM first.”
The Simple, Reliable Solution: A VIN-Programmed Module
Don’t waste time and money at the dealership. This is a direct-replacement GM Fuel Control Module that solves the problem for good. The biggest hurdle with replacing an FSCM has always been the required programmingโa step that used to chain you to a dealership service bay. We eliminate that entirely. Simply provide us with your vehicle’s 17-digit VIN during checkout, and our experts will program the module with the latest, most stable GM-certified software specifically for your vehicle. It arrives at your door ready for a true plug-and-play installation.
Common Symptoms of a Failing FSCM:
- โ No-start or extended cranking condition
- โ Engine stalling, especially under load
- โ Sputtering or hesitation during acceleration
- โ Reduced engine power and poor fuel economy
- โ Check Engine Light with codes P069E, U0109, P0230, or P0606
- โ Fuel pump not audibly priming when the key is turned
Plug-and-Play Installation: No Dealer Visit Required
You can do this job in your own driveway with basic hand tools. The module is typically located on the driver-side frame rail, near the spare tire. Follow these simple steps to get your vehicle running smoothly again.
- Safety First: Disconnect the negative battery terminal.
- Locate the Module: Find the old FSCM. On most trucks/SUVs, it’s mounted to the frame crossmember. On cars like the CTS or LaCrosse, it may be in the trunk or rear compartment.
- Disconnect and Remove: Carefully unplug the electrical connector. Inspect the harness-side connector for any corrosion and clean it with an electronics cleaner if necessary. Then, unbolt the old module from its bracket.
- Install the New Module: Bolt your new, pre-programmed module into place. Ensure the electrical connector clicks securely into position. A dab of dielectric grease on the pins is a great preventative measure.
- Reconnect and Start: Reconnect your negative battery terminal. Turn the key to the ‘On’ position for 10 seconds to allow the system to prime, then start the engine. Your problem should be solved.
Guaranteed Compatibility
This module is a direct replacement for a wide range of 2010-2012 GM vehicles. It is a direct fit for original equipment part numbers:
20791901, 20827745, 20877116, 20850927
Please use the fitment list to confirm this is the correct part for your specific make, model, and year. Providing your VIN is mandatory for us to ensure you receive a perfectly matched and programmed part.