2014 Chevy Impala Fuel Pump Control Module Location: Where to Find It and How to Replace It

If your 2014 Chevy Impala cranks but won't start, stalls without warning, or loses power when you accelerate, there is a strong chance the fuel pump control module has failed. The most important thing to know right away is this: on the 2014 Chevy Impala, the fuel pump control module is mounted underneath the rear of the vehicle, on the driver's side frame rail, just ahead of the fuel tank. In most cases you can see and reach it without dropping the fuel tank, which makes this a job many owners can handle at home with basic hand tools. The rest of this guide explains exactly where to look, what the module does, how to confirm a failure, and how much a replacement costs.

What the Fuel Pump Control Module Does

The fuel pump control module is the electronic brain that manages power delivery to the electric fuel pump inside your gas tank. Instead of running the pump at full speed at all times, the module adjusts voltage based on what the engine needs. At idle, the pump slows down. Under hard acceleration, it speeds up. This keeps fuel pressure steady and reduces wear on the pump motor itself.

On the 2014 Impala, the module works together with the engine control module to manage fuel delivery. When you turn the key, the engine control module signals the fuel pump control module to energize the pump. The module then monitors current draw and adjusts pump speed to keep pressure within the target range. On many GM vehicles from this era, the module is also responsible for shutting off the fuel pump in the event of a collision.

Because the module controls the pump rather than the pump controlling itself, a failed module produces the same symptoms as a failed pump. That is why so many owners replace a perfectly good fuel pump when the real problem is the module.

Exactly Where the Module Is Located on a 2014 Impala

The fuel pump control module on the 2014 Chevy Impala sits on the driver's side rear frame rail, just forward of the fuel tank, underneath the vehicle. It is attached with two bolts or mounted to a small bracket near the spare tire well area.

Here are the steps to locate it:

1. Park on a level surface and engage the parking brake. Make sure the ignition is off and the key is removed. You will be working under the car, so safety comes first.
2. Raise the rear of the vehicle. Use a floor jack and jack stands. Never rely on a scissor jack. Position the stands under the rear axle or frame points so the vehicle is stable and secure.
3. Look along the driver's side frame rail. Crawl under the rear driver's side corner. You should see the fuel tank ahead of you and the exhaust pipe running alongside. The module is typically mounted on the inside face of the frame rail, within a few inches of the fuel tank.
4. Trace the wiring harness. The fuel pump wiring runs from the rear of the vehicle and plugs directly into this module. The connector is a rectangular, weatherproof plug with several pins. If you see a small silver or black box with an electrical connector and a mounting bracket, that is your fuel pump control module.
5. Confirm by checking the part number. The genuine GM part often carries part number 20867261 or an equivalent service replacement. If you can get a flashlight and read the sticker on the module, it will help you confirm you have found the right component before you buy a replacement.

One thing owners report: some 2014 Impala models use a slightly different mounting position near the rear crossmember. If you do not find the module on the frame rail, inspect the area just behind the fuel tank on the driver's side. Either way, the module is always outside the fuel tank, which is good news for DIYers. That means you can replace it without dropping the tank.

Fuel Pump Control Module vs. Fuel Pump Driver Module

The terms "control module" and "driver module" are often used interchangeably, but they can point to different components depending on the vehicle. In the 2014 Impala, the part that manages fuel pump speed is generally called the fuel pump control module. Some aftermarket suppliers label it as the fuel pump driver module, and in many cases they are referring to the same component. The confusion happens because GM used both names in technical service bulletins and parts catalogs.

To keep things simple: if you are looking at a small electronic module mounted under the rear of the vehicle, near the fuel tank, and it has a multi-pin wiring connector, that is the component you need. The fuel pump driver module for the Impala serves the same function as the fuel pump control module. If you order a fuel pump driver module for a 2014 Impala, you will receive a part that mounts in the same location and performs the same job.

Fuel Pump Reset Switch: A Different Component

The fuel pump reset switch, sometimes called the inertia switch, is a separate safety device. Its purpose is to shut off the fuel pump if the vehicle is involved in a collision. In many GM vehicles, this switch is located in the passenger compartment, often behind a kick panel or under the dashboard. Do not confuse it with the fuel pump control module. If your Impala will not start after a minor accident, check the reset switch first before condemning the module.

Symptoms of a Failing Fuel Pump Control Module

Recognizing the warning signs early can save you from being stranded and potentially reduce repair costs. Look for these symptoms:

1. Engine cranks but won't start. If you turn the key and hear the motor cranking normally, but the engine doesn't catch or start, you're most likely facing a fuel pump control module issue. This is because the fuel pump motor isn't running, and sufficient fuel pressure isn't reaching the engine.
2. Intermittent starting problems. The vehicle may start normally one day and refuse to start the next. This inconsistent behavior is a hallmark of an electronic module failure rather than a mechanical pump issue.
3. Engine stalling or hesitation during acceleration. A failing module may deliver inconsistent power to the fuel pump, causing the engine to surge, hesitate, or stall, especially under load.
4. Check engine light illuminated. Modern vehicles will trigger the check engine light when the module sends abnormal signals or fails to communicate with the engine control module. A diagnostic scan will typically reveal fault codes related to fuel pump circuit or control module communication.
5. Reduced performance and increased fuel consumption. When the fuel pump isn't receiving proper voltage, it may run at reduced capacity, leading to poor acceleration, reduced power, and higher fuel consumption.

Diagnostic Trouble Codes You May See

If your check engine light is on, there is no single universal code for a fuel pump control module failure. The codes vary depending on the specific fault and your vehicle's configuration. The most commonly encountered fuel pump codes include:

• P0230, P0231, and P0232 — These three codes point directly to electrical or control circuitry around the fuel pump or its power supply. They often trigger when there's a blown fuse, faulty relay, damaged wiring, or a failing pump motor drawing abnormal current.
• P0087 and P0088 — These codes relate to abnormal fuel pressure in the rail. P0087 means the engine isn't getting enough fuel pressure, which can cause stalling, hard starting, and reduced engine power.
• P0191 and P0193 — These codes pertain to the fuel rail pressure sensor's readings or wiring.
• P2635 — This code is triggered when the engine control module detects a performance issue or insufficient flow rate in the vehicle's main fuel pump.
• P025A and P069E — These codes appear on vehicles with electronic, returnless fuel systems where the fuel pump control module is a separate component. P025A indicates the module has detected a problem and requested the check engine light to turn on. P069E means the module has detected an issue somewhere in the fuel system and is alerting the main computer.

How to Diagnose the Problem

Before you start throwing parts at the problem, follow this systematic diagnostic approach. It will save you time, money, and frustration.

Step 1: Retrieve all codes and freeze frame data. Connect an OBD-II scanner and retrieve all current and pending trouble codes, along with freeze-frame data and any live sensor readings. Pay attention to any additional codes that may appear alongside the fuel pump code — they can help point you in the right direction.

Step 2: Check basic electrical power. Start with the simple stuff. Verify battery voltage at the fuel pump relay and fusible link. Check the fuel pump fuse with a test light or multimeter.

Step 3: Listen for the pump prime. When you turn the key to the run position, the fuel pump should run for three to four seconds to build pressure. If you hear nothing, the pump is not receiving power or the pump itself has failed.

Step 4: Test the module connector. With the key on, check for power and ground at the module connector. If power and ground are present but the pump does not run, the module is the likely culprit.

Step 5: Confirm before replacing. A failed module and a failed pump produce identical symptoms. Whenever possible, test the pump directly with a known-good power source before condemning either part.

Replacement Cost for a 2014 Impala

A complete fuel pump control module replacement — parts and labor combined — typically ranges from $400 to $1,100 for most domestic and import vehicles, with the total bill depending on your vehicle's make and model, parts quality, labor rates in your area, and whether additional repairs are needed. The module itself accounts for $150 to $700 of that total, while labor typically runs $200 to $500 depending on accessibility and shop rates.

For the 2014 Impala specifically, the module is mounted under the rear of the vehicle rather than inside the fuel tank, which keeps labor costs on the lower end of that range. Vehicles with particularly difficult access may cost $1,200 to $2,200 or higher.

If you are also replacing the fuel pump itself, expect the total to rise significantly. Based on current market data, fuel pump replacement on a Chevrolet typically ranges from $1,100 to $1,471, with parts costing approximately $598 to $662 and labor ranging from $733 to $809.

Step-by-Step Replacement Guide

Replacing the fuel pump control module on a 2014 Impala is a moderate job that most DIYers can complete in one to two hours. Here is the process:

1. Disconnect the battery. Always disconnect the negative terminal before working on any electrical component.

2. Raise and support the rear of the vehicle. Use jack stands on a level surface. Never work under a vehicle supported only by a jack.

3. Locate the module. Follow the steps in the location section above. The module is on the driver's side frame rail, just ahead of the fuel tank.

4. Disconnect the electrical connector. Press the release tab and pull the connector straight out. Inspect the pins for corrosion or damage.

5. Remove the mounting bolts. The module is held by two bolts or a small bracket. Remove them and set the module aside.

6. Install the new module. Mount it in the same position and torque the bolts to the manufacturer's specification. Reconnect the electrical connector until it clicks.

7. Reconnect the battery and test. Turn the key to the run position and listen for the fuel pump to prime. If the pump runs and the engine starts, the repair is complete.

8. Clear any stored codes. Use your OBD-II scanner to clear the codes and verify that no new codes return after a test drive.

Why Choose KEMSO Fuel Pumps

If your diagnosis points to the fuel pump itself rather than the module, or if you want to replace both at the same time, KEMSO is a brand worth considering. KEMSO fuel pumps are built as high-performance, OEM replacement units, meaning they are designed to meet or exceed the specifications of the original part. Every KEMSO fuel pump comes with a lifetime warranty, so you get long-term protection that most aftermarket brands do not offer.

KEMSO carries fuel pumps for a wide range of vehicles, including BMW, Subaru, Honda, Kawasaki, Ducati, KTM, Can-Am, and many more. Each pump is engineered for reliable fuel delivery and consistent pressure, which is exactly what your Impala needs to run smoothly. Whether you are replacing a failed pump or upgrading a high-mileage vehicle, KEMSO offers a quality solution at a fair price.

To browse the full selection and find the right fuel pump for your vehicle, visit https://www.kemsoracing.com/. You can also explore their blog for detailed replacement guides on specific models, including step-by-step instructions, symptom checkers, and cost breakdowns.

Frequently Asked Questions

Q: Can I drive with a bad fuel pump control module?
A: No. If the module fails, the fuel pump will not receive power and the engine will not run. In some cases the vehicle may start intermittently, but driving with a failing module risks stalling in traffic, which is a safety hazard.

Q: How long does a fuel pump control module last?
A: There is no fixed replacement interval, but modern fuel pumps typically last between 100,000 and 150,000 miles, and the control module often lasts the life of the vehicle. Heat, vibration, and electrical issues are the most common causes of premature failure.

Q: Do I need to drop the fuel tank to replace the module?
A: On the 2014 Impala, no. The module is mounted outside the fuel tank on the driver's side frame rail, so you can replace it without dropping the tank.

Q: Will a bad module throw a check engine light?
A: Yes. Modern vehicles will trigger the check engine light when the module sends abnormal signals or fails to communicate with the engine control module. A diagnostic scan will typically reveal fault codes related to fuel pump circuit or control module communication.

Q: Can I replace the module myself?
A: Yes, if you are comfortable working under the vehicle and have basic hand tools. The job involves disconnecting the battery, raising the rear of the car, disconnecting one electrical connector, and removing two bolts. It is a moderate DIY job that most owners can complete in an afternoon.

Final Thoughts

The 2014 Chevy Impala fuel pump control module location is underneath the rear of the vehicle on the driver's side frame rail, just ahead of the fuel tank. Knowing this location helps you diagnose a no-start or stalling issue quickly and avoid paying a shop to drop the fuel tank unnecessarily. If your module has failed, replacing it is a straightforward job that restores fuel delivery and gets you back on the road.

For high-quality replacement fuel pumps and modules, visit KEMSO at https://www.kemsoracing.com/. Their OEM replacement fuel pumps are backed by a lifetime warranty and built for performance you can rely on.