Is Your 2010-2012 Avalanche Stalling, Hesitating, or Refusing to Start?
As a mechanic with over two decades of experience under the hood, I’ve seen this story play out hundreds of times. Your trusted GM truck or SUV, like the 2010-2012 Chevrolet Avalanche 1500, suddenly starts acting up. You might experience intermittent stalling at stoplights, a long crank time, or a complete no-start condition, often accompanied by the dreaded Check Engine Light. In my shop, one of the first things I check for these symptoms is the Fuel System Control Module (FSCM), especially with diagnostic trouble codes like P069E or P0230 pointing the way.
The FSCM, often called the fuel pump driver module, is the brain that tells your fuel pump how much pressure to deliver. Mounted on the frame rail on most trucks, it’s constantly exposed to heat, moisture, and road salt, which leads to internal corrosion and eventual failure. This isn’t a question of if it will fail, but when.
Common Symptoms of a Failing Fuel Control Module:
- โ Engine stalls unexpectedly, especially at low speeds or idle
- โ Vehicle cranks but will not start
- โ Hesitation or stumbling during acceleration
- โ Reduced engine power and poor fuel economy
- โ Check Engine Light with code P069E (Fuel Pump Control Module Requested MIL Illumination)
- โ “Service Fuel System” message on the dash display
Expert Pro Tip: Check Your Connectors!
Before you install your new FSCM, take a moment to closely inspect the vehicle’s wiring harness connector. I’ve seen brand new modules get damaged immediately because the old connector was full of green corrosion. Use a small pick and some electrical contact cleaner to ensure every pin is bright and clean. A clean connection is critical for the longevity of your new part.
The Simple Solution: A VIN-Programmed 2010-2012 Avalanche FSCM
The biggest headache with replacing an FSCM used to be the mandatory, and expensive, trip to the dealership for programming. We’ve eliminated that step. When you order from us, we use your vehicle’s VIN to flash this module with the latest, most stable software directly from GM. It arrives at your door ready for a true plug-and-play installation, saving you time and hundreds of dollars in dealer fees.
Plug-and-Play Installation: No Dealer Visit Required
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the Module: On most trucks like the Avalanche, Silverado, and Sierra, the FSCM is mounted to the driver’s side frame rail, typically near the spare tire.
- Remove the Old Module: Unplug the electrical connector and remove the bolts holding the old module to the frame.
- Clean the Area: Clean the mounting surface and the electrical connector as mentioned in our pro tip.
- Install the New Module: Bolt your new, pre-programmed FSCM into place and securely plug in the connector.
- Final Step: Reconnect the battery terminal. Your vehicle is now ready to start.
Guaranteed Fitment and Compatibility
This module is a direct replacement for a wide range of General Motors vehicles. Please verify that your original part number is listed below to ensure a perfect match.
This module is a direct replacement for the following part numbers:
- โ 20877116
- โ 20791901
- โ 20827745
- โ 20850927
It fits dozens of models including the Chevrolet Silverado, Tahoe, Suburban; GMC Sierra, Yukon; Cadillac Escalade, and many more from 2010-2012. By providing your VIN, you guarantee that the software loaded onto the module is precisely correct for your vehicle’s specific configuration.