Is your 2010-2012 Cadillac Escalade suddenly stalling, hesitating, or refusing to start? Before you condemn the fuel pump, the real culprit is often the Fuel System Control Module (FSCM). As a mechanic with over 20 years of experience, I’ve seen countless owners replace a perfectly good fuel pump only to find the problem persists. This module is the brain that tells the pump how much fuel to deliver. When it fails, your engine is starved of fuel, leading to frustrating and unpredictable performance issues.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the guesswork and extra cost out of the repair by pre-programming this module to your vehicle’s specific VIN with the latest GM software updates. This means no expensive trips to the dealership for programming—it arrives at your door ready for a straightforward installation.
From the Diagnostic Bay: The Case of the Misdiagnosed Fuel Pump
A customer brought in their 2011 Yukon XL, a vehicle that shares this exact FSCM with the Escalade. They were frustrated, having just spent nearly a thousand dollars at another shop to have the in-tank fuel pump replaced. The truck ran fine for a day, then the dreaded ‘Engine Power is Reduced’ message returned, along with a no-start condition. A quick scan showed DTC P069E (Fuel Pump Control Module Commanded On). Instead of just throwing parts at it, we checked the power and ground at the FSCM connector—both were good. We then commanded the fuel pump on with our scan tool and monitored the voltage output from the module. It was erratic, jumping all over the place. The new fuel pump was fine; the original FSCM was the issue all along. This pre-programmed module would have saved them time, money, and a major headache.
Is Your Escalade Showing These Signs of FSCM Failure?
A failing FSCM can mimic other fuel system problems. Watch for these common indicators before making a costly misdiagnosis. This module is the direct fix for these issues.
- ✔ Engine cranks but will not start
- ✔ Stalling, especially under load or when coming to a stop
- ✔ ‘Engine Power is Reduced’ message on the dash
- ✔ Hesitation or sputtering during acceleration
- ✔ Check Engine Light with codes like P069E, P025A, or U0109 (Lost Communication with Fuel Pump Control Module)
- ✔ Inconsistent fuel pressure readings
A Straightforward Guide to Installation
Installing your new 2010-2012 Escalade FSCM is a simple process that most DIYers can complete in under an hour with basic hand tools. Since we program it for you, there are no special electronic tools required.
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the Module: On most GM trucks and SUVs like the Escalade, the FSCM is mounted to the driver’s side frame rail, typically near the spare tire.
- Disconnect and Remove: Carefully unplug the electrical connectors. Then, remove the bolts or nuts holding the old module to the frame. Corrosion on the bolts is common, so a little penetrating oil can help.
- Install the New Module: Mount your new, pre-programmed FSCM in the same location and secure it with the original hardware.
- Connect and Finalize: Plug the electrical connectors firmly into the new module. Reconnect your battery terminal. The vehicle is now ready to start.
Verified Vehicle Compatibility List
This module is a direct replacement for part number 20850927 and is also compatible with part numbers 20791901, 20827745, and 20877116. It fits a wide range of General Motors vehicles. Please verify your vehicle is on the list below. After purchase, you must provide your VIN so we can program the module correctly.
Fits select models of:
- ✔ Cadillac Escalade, ESV, EXT (2010-2012)
- ✔ Chevrolet Avalanche, Silverado 1500, Suburban 1500, Tahoe (2010-2012)
- ✔ GMC Sierra 1500, Yukon, Yukon XL 1500 (2010-2012)
- ✔ Cadillac CTS (2010-2012)
- ✔ Chevrolet Colorado, Express/GMC Savana 1500 Van, Captiva Sport (2010-2012)
- ✔ GMC Canyon (2010-2012)
- ✔ Buick Enclave, LaCrosse, Regal (2010-2012)
- ✔ And many more. Please check the detailed fitment list or contact us with your VIN.
Frequently Asked Questions
Why do you need my VIN?
Your vehicle’s VIN (Vehicle Identification Number) allows us to program the module with the exact software and calibrations specified by GM for your Escalade’s engine, transmission, and options. This ensures perfect communication and performance, just like a part from the dealer, but without the hassle.
What is an FSCM and what does it do?
The FSCM, or Fuel System Control Module, is a small computer that controls the voltage sent to your electric fuel pump. By varying the voltage, it precisely regulates fuel pressure and flow based on engine demand, which improves efficiency and performance.
Is this a difficult part to replace myself?
Not at all. For most DIYers with basic tools, this is a very straightforward repair. The module is typically located on the frame rail and is held on by a few bolts. Since our module comes pre-programmed, it’s a simple plug-and-play process.
Will this fix a P069E 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 issue within the module’s control circuit. Replacing it with our pre-programmed unit is the definitive fix for this common problem.
My original module has a different part number, will this work?
Yes, this module replaces several GM part numbers, including 20791901, 20827745, and 20877116. As long as your vehicle is on our compatibility list, this module will function correctly once programmed to your VIN.