Restore Your Escalade’s Power and Reliability
Is your 2010-2012 Cadillac Escalade experiencing frustrating issues like stalling, hesitation, or a complete no-start condition? Before you suspect the fuel pump, the problem often lies with its electronic controller: the Fuel System Control Module (FSCM). As a technician with over two decades of diagnostic experience, I’ve seen countless vehicle owners and even shops misdiagnose these symptoms, leading to wasted time and money. The FSCM is the brain that tells the fuel pump how much pressure to deliver. When it fails, your engine is starved of the fuel it needs to run properly.
This is a direct-fit replacement Fuel System Control Module, solving these common issues. The best part? We take the guesswork and dealer expense out of the equation. Simply provide us with your vehicle’s VIN at checkout, and we will program the module with the latest GM software specifically for your Escalade. It arrives at your door ready to install, no expensive trips to the dealership for programming required. This is the definitive solution for a reliable and long-lasting repair.
A Technician’s Notebook: The Misleading No-Start
I remember a 2011 Escalade ESV that was towed into my bay. The owner had already replaced the fuel pump himself, but the truck still wouldn’t start. He was convinced he got a bad pump. After connecting my scan tool, I saw no communication with the fuel pump module (DTC U0109). A quick check under the vehicle on the driver’s side frame rail revealed the problem: the original FSCM was heavily corroded. These modules are exposed to the elements, and moisture intrusion is their number one enemy. We installed a new, programmed module, and the Escalade fired right up. It’s a classic case of diagnosing the brain, not just the muscle.
Is Your Escalade Showing These Signs of a Failing FSCM?
- ✔ Engine cranks but will not start
- ✔ Stalling, especially under load or when coming to a stop
- ✔ Rough idling or engine hesitation
- ✔ Reduced engine power and poor acceleration
- ✔ Check Engine Light with codes like P069E, P0230, or U0109 (Loss of Communication with Fuel Pump Control Module)
A Straightforward Guide to Installation
Replacing the FSCM on your Escalade is a manageable job for a confident DIYer. It’s typically located on the driver’s side frame rail, near the spare tire.
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the Module: Find the FSCM mounted to the inside of the driver-side frame rail. You may need to lower the spare tire for better access.
- Disconnect Electrical Connectors: Carefully press the release tabs and unplug the two electrical connectors from the old module. Inspect the connectors for any corrosion or damage.
- Remove the Old Module: The FSCM is held in place by two bolts. Use the appropriate socket to remove them and take the old module off the frame.
- Install the New Module: Mount your new, pre-programmed FSCM in the same location and secure it with the original bolts.
- Reconnect Everything: Plug the electrical connectors firmly into the new module until they click. Reconnect your vehicle’s battery.
- Final Check: Turn the key to the ‘On’ position for a few seconds to allow the system to prime, then start the engine. Your Escalade should now run smoothly.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 20850927, 20791901, 20827745, and 20877116, and fits a wide range of GM vehicles. While this listing focuses on the 2010-2012 Escalade FSCM, it is also compatible with the following models. Please verify your specific model and options.
- Cadillac Escalade, ESV, EXT (2010-2012)
- Chevrolet Avalanche 1500, Silverado 1500, Suburban 1500, Tahoe (2010-2012)
- GMC Sierra 1500, Sierra Denali 1500, Yukon, Yukon XL 1500 (2010-2012)
- Buick Enclave, LaCrosse, Regal (2010-2012)
- Chevrolet Captiva Sport, Colorado, Express 1500 Van, Impala, Traverse (2010-2012)
- GMC Acadia, Canyon, Savana 1500 Van (2010-2012)
- And many more. Refer to the detailed fitment list for specifics.