Restore Your Vehicle’s Performance and Reliability
If your 2010-2012 Cadillac CTS or other compatible GM vehicle is experiencing frustrating issues like stalling, extended cranking times, or a sudden loss of power, a failing Fuel System Control Module (FSCM) is a very likely culprit. As a technician with over two decades of experience under the hood, I’ve seen this exact scenario countless times. These modules, often called fuel pump driver modules, are the brains behind your fuel pump, and when they fail, they can mimic a bad fuel pump, leading to expensive misdiagnosis. This module is the definitive solution to restore proper fuel pressure and get your vehicle running smoothly again.
The biggest challenge with replacing an FSCM has always been the need for expensive dealer programming. We eliminate that problem entirely. This isn’t just a part in a box; it’s a complete, ready-to-install solution. We professionally program this 2010-2012 CTS Fuel System Control Module to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This means no extra trips to a mechanic, no costly programming fees, and no special tools required. It arrives at your door ready for a true plug-and-play installation, loaded with the latest GM software updates for optimal performance and efficiency.
From the Diagnostic Bay
I remember a 2011 Silverado that came into my shop on a tow truck. The owner had already replaced the in-tank fuel pump twice, convinced it was the issue. The truck would start, run for a few minutes, then sputter and die. He was at his wit’s end. A quick scan revealed a P069E code—’Fuel Pump Control Module Commanded OFF’. We checked the wiring and found it solid. The issue was the FSCM itself, which was overheating and shutting down. After installing one of our pre-programmed modules, the truck fired up instantly and ran perfectly. It’s a classic case where understanding the system saves hundreds of dollars and immense frustration.
Is Your GM Vehicle Showing These Symptoms?
A faulty FSCM can cause a range of confusing problems. If you’re noticing any of the following, this module is the likely solution:
- ✔ Engine struggles to start or requires long cranking periods.
- ✔ Stalling or hesitation, especially when accelerating or under load.
- ✔ Reduced engine power and poor fuel economy.
- ✔ A ‘Service Engine Soon’ or Check Engine Light is illuminated.
- ✔ Diagnostic Trouble Codes (DTCs) such as P069E, P0230, P0606, or U0109 are stored in the computer.
- ✔ The engine will not start at all, but you don’t hear the fuel pump priming.
A Straightforward Guide to Installation
Installing your new, pre-programmed module is a job most DIYers can handle with basic tools. While locations vary slightly, the process is generally the same. For the 2010-2012 Cadillac CTS, you’ll find it in the left-hand rear compartment area.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the Module: On most trucks and SUVs, the FSCM is mounted to the driver’s side frame rail, near the spare tire. On cars like the CTS or Impala, check in the trunk or rear quarter panel area.
- Disconnect and Remove: Carefully unplug the electrical connectors. Be gentle with the locking tabs, as they can become brittle over time. Then, unbolt the old module from its mounting location.
- Install the New Module: Bolt the new, pre-programmed FSCM into place. Ensure it is securely fastened.
- Reconnect and Finalize: Plug the electrical connectors firmly into the new module. Reconnect your battery’s negative terminal.
- Start the Engine: Turn the key to the ‘On’ position for a few seconds to allow the fuel system to prime, then start the vehicle. It should fire up and run smoothly.
Verified Vehicle Compatibility
This module, part number 20827745, is a direct replacement for several original part numbers, including 20791901, 20877116, and 20850927. It fits a wide range of GM vehicles. Please match your vehicle, year, and options below to ensure guaranteed fitment.
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 / XL 1500 (10-12)
Buick: Enclave (10-12), LaCrosse (10-12), Regal (11-12)
Hummer: H3 (10)
Saturn: Outlook (10), Vue (10)
Note: Some models have specific options (e.g., ‘w/o integrated trailer brake control’) or require matching the ID number on your original part. Please verify before ordering.
Do I need to do any programming myself?
Do I need to do any programming myself?
No. This Fuel System Control Module comes fully programmed to your vehicle’s VIN. It is a true plug-and-play solution, saving you a trip to the dealership.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit VIN. We cannot ship the part until we receive this information to program it correctly for your specific vehicle.
Is this part compatible with other part numbers?
Yes, this module is a direct replacement for part numbers 20791901, 20877116, and 20850927, in addition to 20827745.
What if my vehicle still doesn’t start after installation?
While this module fixes the most common cause of these symptoms, ensure you have checked the fuel pump relay, fuses, and wiring for any damage. A faulty fuel pump can also present similar symptoms, though the FSCM is a more frequent point of failure on these GM models.
Where is the FSCM located on my truck?
On most GM trucks and large SUVs like the Silverado, Sierra, Tahoe, and Yukon, the FSCM is mounted on the inside of the driver’s side frame rail, typically above the spare tire.