Fuel Pump Control Module (FPCM) Buick Encore 2013-2022 Location

Component Location

A quick and direct guide showing you the exact location of the Fuel Pump Control Module (FPCM) on a 2013-2022 Buick Encore. No wasted time, no endless talking—just a clear layout of where to find it:

• Location: Mounted entirely underneath the vehicle, positioned on the underside of the floor pan right near the rear axle area.
• Exact Spot: Look directly above or just ahead of the rear subframe assembly, right next to the side of the fuel tank. It is bolted flat against the underside body structure, protected by the rear suspension layout.

DIY Friendly Repair Guide

If you are planning to swap out a faulty module yourself, knowing that it is located outside under the chassis rather than inside the cabin or trunk is half the battle. Because it sits completely exposed to road salt, mud, and water spray under the car, the aluminum housing on these modules is highly prone to severe corrosion and moisture intrusion over time. This guide is designed to save you time and prevent you from tearing apart your interior carpeting looking for it, making your DIY auto repair much smoother.

Common Bad Symptoms

When a Fuel Pump Control Module corrodes, shorts out, or loses communication with the Engine Control Module (ECM), you might experience several warning signs. Common symptoms of a bad FPCM include a sudden engine stalling or shutting off while driving, a crank but no-start condition due to a complete lack of fuel delivery, or an illuminated check engine light (CEL) throwing communication or fuel system performance trouble codes (such as P023F or U0109). You might also experience erratic engine sputtering or a loss of power under acceleration because the module can no longer properly regulate the pulse-width modulation (PWM) voltage signal sent to the fuel pump.

Safety First!

Before you start working on your vehicle, always prioritize safety. Because you must get completely underneath the rear of the vehicle to service this module, you must securely support the vehicle on heavy-duty jack stands on a level surface—never rely on a floor jack alone. Always wear proper eye protection and mechanics’ gloves to keep road debris out of your eyes, turn off the ignition, and disconnect the negative battery cable before unplugging the module’s electrical harness to prevent voltage spikes or module damage.

Ask an Expert Mechanic

As an experienced professional automotive technician, I’m here to help you get your car back on the road. If you are dealing with a stubborn electrical connector lock tab, need to know how to clean heavily corroded ground wires on the frame rail, or have questions about whether a replacement module requires flash programming to match your vehicle’s VIN, drop your questions in the comments below, and I will gladly assist you with your breakdown!