Is your 2010-2012 Cadillac Escalade suddenly stalling, hesitating under acceleration, or refusing to start altogether? Before you condemn the fuel pump, the real culprit is often a faulty Fuel System Control Module (FSCM). This critical component, also known as a fuel pump driver module, regulates the voltage sent to your fuel pump, ensuring precise fuel pressure for optimal engine performance. When it fails, it can leave you stranded without warning. This is a permanent solution for those frustrating and intermittent fuel delivery problems.
We solve the biggest headache of this repair: the programming. Dealerships charge a premium for a new module and then add labor costs for programming. We eliminate that step entirely. This FSCM arrives at your door pre-programmed with the latest GM software, specifically matched to your vehicle’s VIN. It’s a true plug-and-play solution designed to get your luxury SUV back on the road with the reliability you expect. Simply provide your VIN after purchase, and our expert technicians will handle the rest, ensuring a seamless and correct installation.
Case Study: The Ghost in the Fuel System
A customer brought in an ’11 Escalade ESV with a classic complaint: it would crank but not start, but only intermittently. He had already replaced the fuel pump himself, but the problem persisted. His scanner showed a P069E code (Fuel Pump Control Module Commanded OFF), but it was sporadic. After confirming good power and ground at the module, we knew where to look. These FSCMs are mounted on the frame rail, where they’re constantly battered by water, salt, and road debris. Corrosion had worked its way into the module’s internal circuit board. We installed one of our VIN-programmed modules, and the truck fired up instantly and has run flawlessly since. It’s a textbook example of why you should always check the FSCM before the pump.
Common Signs of a Failing Fuel Control Module
If your vehicle is experiencing any of these issues, a failing FSCM is a likely cause. Replacing it with our pre-programmed unit can restore performance and prevent a breakdown.
- ✔ Engine cranks but will not start
- ✔ Stalling, especially under load or when coming to a stop
- ✔ Severe hesitation or power loss during acceleration
- ✔ Check Engine Light with fuel system codes (e.g., P069E, P0230, P2635)
- ✔ A “Reduced Engine Power” message on the dash display
- ✔ Inconsistent fuel pressure readings on a diagnostic tool
A Straightforward Guide to Installation
This repair is well within the reach of a DIY enthusiast with basic hand tools. On most GM trucks and SUVs, the process is simple and can be done in your driveway.
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the Module: Find the FSCM mounted to the driver’s side frame rail, typically near the spare tire or just ahead of the rear axle.
- Disconnect: Carefully unplug the electrical connector(s) from the old module. Press the release tab firmly to avoid breaking it.
- Remove Old Module: Unbolt the old FSCM from the frame. These bolts may be rusty, so applying a penetrating oil beforehand can help.
- Install New Module: Bolt the new, pre-programmed FSCM into the same location. Ensure it is securely fastened.
- Reconnect: Plug the electrical connector(s) into the new module until they click into place. Reconnect the battery terminal.
- Final Step: Start the vehicle. The engine should start and run smoothly with no further action required.
Verified Vehicle Compatibility
This module is a direct-fit replacement for a wide range of GM vehicles. It is compatible with part numbers 20791901, 20827745, 20877116, and 20850927. Please verify your vehicle is on the list below. Some models require matching the ID number on your original part.
- Cadillac Escalade / ESV / EXT (2010-2012)
- Chevrolet Avalanche 1500 (2010-2012)
- Chevrolet Silverado 1500 (2010-2012)
- Chevrolet Suburban 1500 (2010-2012)
- Chevrolet Tahoe (2010-2012)
- Chevrolet Colorado (2010-2012)
- GMC Sierra 1500 / Denali 1500 (2010-2012)
- GMC Yukon / XL 1500 (2010-2012)
- GMC Canyon (2010-2012)
- And many more GM models including Acadia, Enclave, Traverse, LaCrosse, Impala, CTS, and Hummer H3. Please check the detailed fitment list for your specific application.
Frequently Asked Questions
What exactly does a Fuel System Control Module (FSCM) do?
The FSCM acts as a smart relay for your fuel pump. It receives commands from the Engine Control Module (ECM) and precisely controls the voltage and speed of the fuel pump to deliver the exact amount of fuel the engine needs at any given moment, improving efficiency and performance.
Why do you need my VIN number?
Every GM vehicle has specific software parameters. We use your Vehicle Identification Number (VIN) to load the correct, most up-to-date GM software onto the module before shipping. This ensures it communicates perfectly with your vehicle’s other computers, making it a true plug-and-play part.
Is this part difficult to install for a DIYer?
Not at all. For most trucks and SUVs like the Escalade, it’s a simple bolt-off, bolt-on process. It’s located on the frame rail and is accessible with basic tools. Our pre-programming saves you the most difficult and expensive part of the job.
Will this fix a P069E diagnostic trouble code?
Yes, in the vast majority of cases, a faulty FSCM is the root cause of a P069E code. This code indicates a performance or communication issue with the module itself. Replacing it with our programmed unit is the definitive fix.
My old module has a different part number on it. Will this still work?
Yes, this module is a direct replacement for several part numbers, including 20791901, 20877116, and 20850927. GM often consolidates part numbers over time. As long as your vehicle is on our compatibility list, this module will work perfectly.