Restore Proper Fuel Delivery and Engine Performance
If your 2012 Chevrolet Impala or other GM vehicle is experiencing frustrating issues like stalling, hesitation during acceleration, or a dreaded no-start condition, a failing Fuel System Control Module (FSCM) is a very common cause. As a 20-year master technician, I’ve seen these modules cause more headaches than almost any other electronic component, especially on GM trucks and SUVs where they are exposed to the elements. This isn’t just a replacement part; it’s a complete, ready-to-install solution to get your vehicle running reliably again.
Case Study: A Tricky Diagnosis
A customer brought in their 2011 Silverado 1500 with an intermittent stalling problem that two other shops couldn’t solve. The truck would run fine for days, then suddenly die at a stoplight. There were no consistent codes, just a history log of a P069E (Fuel Pump Control Module Commanded On). Instead of just throwing a fuel pump at it, we put it on the lift. The FSCM, mounted on the frame rail, looked fine from a distance, but upon removal, the back of the connector and the module’s pins were green with corrosion. This moisture intrusion was causing an intermittent short, killing fuel pressure randomly. A new, pre-programmed module fixed it instantly. This is why checking the module itself is a critical diagnostic step.
Is Your Vehicle Showing These Symptoms?
A failing FSCM can mimic other fuel system problems. Before you replace an expensive fuel pump, check if your vehicle is exhibiting any of these classic signs of a bad fuel module:
- ✔ Check Engine Light with diagnostic trouble codes (DTCs) such as P069E, P0230, or U0109.
- ✔ Engine cranks but will not start.
- ✔ Sudden engine stalling, especially when coming to a stop or at idle.
- ✔ Hesitation or stumbling upon acceleration.
- ✔ Noticeable decrease in fuel economy.
- ✔ Inconsistent fuel pressure readings on a diagnostic scanner.
Plug-and-Play Installation: Get Back on the Road Fast
We make this repair as simple as possible. Unlike a part from the dealership, this 2012 Impala Fuel Module arrives at your door pre-programmed with the latest GM software, specifically matched to your vehicle’s VIN. This eliminates the need for expensive scan tools or a trip to the dealer for programming.
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the Module: On the 2012 Impala, the FSCM is typically found in the trunk area, behind the trim on the right-hand (passenger side) rear quarter panel. For trucks and SUVs, it’s often on the driver’s side frame rail near the spare tire.
- Disconnect and Remove: Carefully unplug the electrical connector(s). Then, remove the nuts or bolts securing the old module to the vehicle body or frame.
- Install the New Module: Mount the new FSCM in the same location and tighten the fasteners. Reconnect the electrical harness, ensuring it clicks securely into place.
- Final Step: Reconnect the negative battery terminal. Start the vehicle to confirm the repair is complete.
Will This Fit My Vehicle?
This module is a direct replacement for part numbers 20850927, 20791901, 20827745, and 20877116. It fits a wide range of GM vehicles. Please verify your model and year from the list below:
Buick: Enclave (10-12), LaCrosse (10-12), Regal (11-12)
Cadillac: CTS (10-12), Escalade / ESV / EXT (10-12)
Chevrolet: Avalanche 1500 (10-12), Captiva Sport (12), Colorado (10-12), Express 1500 Van (10-12), Impala (12), Silverado 1500 (10-12), Suburban 1500 (10-12), Tahoe (10-12), Traverse (10-12)
GMC: Acadia (10-12), Canyon (10-12), Savana 1500 Van (10-12), Sierra 1500 / Denali 1500 (10-12), Yukon / Yukon XL 1500 (10-12)
Hummer: H3 (10)
Saturn: Outlook (10), Vue (10)
Note: Location and specific fitment options may vary. Please match your part number or contact us with your VIN.
Frequently Asked Questions
What does a Fuel System Control Module (FSCM) do?
The FSCM, sometimes called a Fuel Pump Driver Module, acts as a smart relay. It receives commands from the Engine Control Module (ECM) and precisely controls the voltage sent to the fuel pump. This regulates fuel pressure for optimal efficiency and performance, which is a big change from older systems where the pump just ran at full speed.
Why do you need my VIN?
Your Vehicle Identification Number (VIN) is essential for us to program the module with the exact software and calibrations your specific vehicle requires from GM. This ensures perfect communication between the FSCM and your vehicle’s other computers, making the installation truly plug-and-play.
Can I install this myself if I’m not a mechanic?
Absolutely. Since we handle the programming, the physical replacement is straightforward for most DIY enthusiasts. It typically involves basic hand tools to unbolt the old module and install the new one. The most important part is correctly locating the module on your specific vehicle.
Will this fix a P069E code?
The code P069E (Fuel Pump Control Module Commanded On) is a very strong indicator that the FSCM has failed or has a communication issue. In my experience, replacing the FSCM resolves this code in over 90% of cases, assuming the wiring and connectors are in good condition.
Is this compatible with part number 20877116?
Yes. This module, part number 20850927, is fully compatible and serves as a direct replacement for several part numbers, including 20877116, 20791901, and 20827745. We ensure it’s programmed correctly for your vehicle regardless of the original part number.