2020 Chevy Equinox Fuel Pump Control Module Location Explained & Replacement Guide

The 2020 Chevy Equinox fuel pump control module location is consistently found behind the driver’s side rear interior trim panel, specifically situated near the "D-pillar" at the back of the vehicle, accessing it requires entering the cargo area. This module is a critical component managing fuel delivery to the engine, and problems with it can lead to symptoms like hard starting, stalling, or a no-start condition. Knowing its precise location is the essential first step for inspection, testing, or replacement.

Understanding where the fuel pump control module (FPCM) is located on your 2020 Equinox is vital if you suspect fuel system issues. This guide provides the exact location, detailed instructions for access, testing procedures, and replacement considerations, empowering both DIY enthusiasts and owners to better understand this repair.

Understanding the Fuel Pump Control Module (FPCM)

The Fuel Pump Control Module is an electronic component responsible for precisely regulating the voltage and speed of the vehicle's electric fuel pump. It receives commands from the Powertrain Control Module (PCM), the vehicle's main engine computer. Based on engine demand factors like throttle position, engine speed (RPM), load, and sensor inputs, the PCM instructs the FPCM on exactly how much fuel pressure is required. The FPCM then translates these commands into the necessary power output (using Pulse Width Modulation - PWM) to the fuel pump.

Its primary jobs include:

1. Variable Speed Control: Unlike older systems that ran the fuel pump at full voltage constantly, the FPCM allows the pump to operate at different speeds. This improves efficiency, reduces noise, and minimizes pump wear by only supplying the precise fuel pressure needed for the current operating conditions.
2. Maintaining Fuel Pressure: It continuously adjusts the pump speed to maintain the optimal fuel rail pressure specified by the PCM for proper engine operation under all driving conditions (idle, acceleration, cruising, high load).
3. System Monitoring: The FPCM often monitors circuit integrity and pump operation, and can send diagnostic trouble codes (DTCs) to the PCM if a fault is detected, illuminating the Check Engine Light.

Symptoms of a Failing Fuel Pump Control Module in a 2020 Chevy Equinox

Problems with the FPCM will directly impact fuel pump operation and engine performance. Be alert for these common signs:

1. Engine Cranking but Not Starting: One of the most frequent symptoms. The starter motor engages normally, but the engine fails to run because the FPCM is not sending power to the fuel pump.
2. Engine Stalling: The engine may start and run momentarily but then abruptly stall. This can happen when idling, driving at low speeds, or even during acceleration if the FPCM loses control of the fuel pump or suffers an intermittent fault.
3. Engine Hesitation or Lack of Power: Intermittent FPCM issues or incorrect signal output can cause fluctuating fuel pressure, leading to hesitation, stumbling, or a noticeable loss of power, particularly during acceleration.
4. Check Engine Light (CEL) Illumination: The PCM monitors communication with the FPCM and the fuel pump circuit. Faults like loss of communication (e.g., U0109), FPCM internal circuit issues, or fuel pump circuit malfunctions will trigger the CEL and store related DTCs. Crucially, P0087 (Low Fuel Rail Pressure) is a common symptom of FPCM or fuel pump failure, but professional diagnosis is needed to pinpoint the exact cause.
5. Intermittent Starting Problems: The issue might come and go unpredictably – working fine one day, failing the next morning, then working again later. This inconsistency is a hallmark sign of an electronic control module failing.
6. No Fuel Pump Priming Noise: When you first turn the ignition to the "ON" position (without cranking the engine), a healthy fuel pump should make a distinct whining/humming sound for 2-3 seconds as it primes the system. If you consistently hear no noise at this point and have starting issues, the FPCM or fuel pump (or their wiring/fuses) is suspect. Listen near the rear of the vehicle or the fuel filler neck.
7. Difficulty Restarting a Warm Engine: A failing FPCM can overheat. It might allow the engine to start when cold but prevent restarting shortly after the vehicle has been driven and the module is hot.

Essential Safety Precautions Before Starting Work

Before attempting any work related to the fuel system or electrical modules, prioritizing safety is paramount:

1. Disconnect the Negative Battery Terminal: Always start by disconnecting the negative (-) cable from the vehicle's battery. Place the cable away from the battery terminal to prevent accidental contact. This eliminates the risk of electrical shorts, sparks, and potential damage to the vehicle's sensitive electronics during disassembly. Wait at least 3 minutes after disconnection to allow stored energy in capacitors to dissipate.
2. Relieve Fuel System Pressure: This is critical. Modern fuel injection systems operate under high pressure (typically 50-60 PSI). Improperly disconnecting fuel lines can spray fuel forcefully. While the primary fuel pump feed line connection point isn't usually at the FPCM itself, depressurizing the system is a crucial universal step before working on any fuel system components. Methods vary, but often involve locating the fuel pump fuse or relay in the underhood fuse box, starting the engine and letting it stall, then cranking it for 3-5 seconds. Consult the vehicle's specific service manual for the recommended procedure.
3. Work in a Well-Ventilated Area: Avoid working in garages with pilot lights or potential ignition sources. Gasoline vapors are highly flammable and explosive.
4. Have a Fire Extinguisher Nearby: Keep a suitable (Class B) fire extinguisher readily accessible as a precaution.
5. Avoid Sparks: Do not smoke. Use tools carefully to avoid striking metal surfaces and creating sparks near any residual fuel vapors. Avoid wearing synthetic clothing that can generate static electricity.
6. Personal Protective Equipment (PPE): Wear safety glasses to protect your eyes from debris, dislodged components, or accidental fluid contact. Gloves protect your hands during disassembly.
7. Avoid Ignition Sources: Ensure no open flames, sparks, or electrical devices that could arc are present near your work area.

Locating the 2020 Chevy Equinox Fuel Pump Control Module

Here's the detailed process to locate and access the FPCM:

1. Enter the Cargo Area: Open the liftgate and fully enter the cargo area of your Equinox.
2. Identify the Driver's Side Rear Trim Panel: Focus on the large vertical interior trim panel located directly behind the driver's side rear seat backrest and the driver's side rear seat belt anchor point. This panel covers the "D-pillar" (the structural pillar at the very back corner of the vehicle on the driver's side) and extends downwards.
3. Locate Retaining Hardware (Panels): This trim panel is secured by several retaining clips. On most 2020 Equinox models, you will also typically find two or more plastic "pop-out" fasteners near the top edge or side edge of the panel, accessible from within the cargo area. Look for small circular covers you can pop off with a small flat-head screwdriver, revealing the heads of screws underneath.
4. Remove Fasteners:
   • Pry off the plastic covers concealing the screw heads using a plastic trim removal tool or a small flat-head screwdriver carefully wrapped in tape to avoid scratching.
   • Use a suitable screwdriver (usually Torx T20, T25, or Phillips PH2 - have both handy) to remove the screws revealed by the covers.
   • Carefully feel along the edges (especially the bottom edge) of the trim panel for retaining clips. Do not force it.
5. Remove the Trim Panel:
   • Once all visible fasteners are removed, start at the bottom edge of the panel. Insert a plastic trim removal tool or a wide, flat pry tool wrapped in tape between the panel and the vehicle's body.
   • Gently pry outward to release the retaining clips holding the panel in place. Work your way around the perimeter of the panel. Start at the bottom edge and work upwards. Be patient – the clips can be tight.
   • Avoid prying near corners or on painted surfaces. Focus pressure directly behind the clips.
   • Once all clips are released, lift the panel slightly upwards to detach it from any hooks or guides at the top. Slide it slightly towards the center of the vehicle if needed. Remove the panel and set it aside carefully.
6. Locate the FPCM: With the trim panel removed, look directly at the vehicle's body metal structure in the area you uncovered. The Fuel Pump Control Module (FPCM) is a flat, rectangular or slightly trapezoidal-shaped black plastic module, typically about 6-8 inches long, 3-4 inches wide, and 1-2 inches thick. It is mounted securely to a bracket on the D-pillar body structure.
7. Identify the Electrical Connector: The FPCM will have one main electrical wiring harness connector plugged into it. This connector is usually located on the side or end facing the interior of the cargo area and is often distinctively large.
8. Identify the Ground Wire: Securely bolted to the FPCM or its mounting bracket, you should find a single black ground wire terminating with an eyelet connector secured by a small bolt (often 10mm). This ground connection is critical for the module's operation. It's frequently located near the main harness connector.
9. Visual Confirmation: You've successfully located the 2020 Chevy Equinox fuel pump control module location. Before proceeding with any testing or removal, ensure you have followed the safety protocols above, especially battery disconnection and fuel system pressure release.

Removing the Fuel Pump Control Module for Testing or Replacement

Once located, removing the module itself is straightforward:

1. Disconnect Electrical Connector: Locate the locking tab on the wiring harness connector plugged into the FPCM. Press or lift the tab to unlock it. Firmly grasp the connector body (not the wires) and pull straight back to disconnect it from the module. Some connectors may require a secondary latch to be slid or pressed.
2. Remove the Ground Wire: Use an appropriate socket wrench (often 10mm) or wrench to completely remove the small bolt securing the ground wire eyelet terminal to the module or its bracket. Slide the terminal off the mounting stud or away from the bolt hole. Ensure the terminal doesn't fall behind anything.
3. Unbolt the Module: The FPCM itself is secured to the mounting bracket by two or three bolts. These are typically Torx (T15 or T20) or possibly Hex/Allen (5mm or 6mm). Use the correct socket or wrench to remove these bolts completely. Keep them in a safe place.
4. Remove the Module: Once all bolts are out, carefully slide the FPCM off its mounting bracket or away from its mounting points. It should come free without force. Lift it out.

Testing the Fuel Pump Control Module

Determining definitively if the FPCM is faulty is best done by a professional technician with specific diagnostic equipment, as the module requires power and signals from the vehicle to test properly. However, some preliminary checks are possible:

1. Visual Inspection: Look for obvious damage: cracks in the plastic housing, signs of overheating (melted plastic, discoloration, burnt smell), corrosion on electrical pins or the mounting/grounding surfaces, water intrusion, or damaged connectors.
2. Check Ground Connection: Inspect the ground wire terminal and the mounting point on the vehicle body where it was attached. Ensure both are clean, free of corrosion, paint, or rust, and make good metal-to-metal contact. Clean with a wire brush if necessary. A poor ground is a frequent cause of module malfunction.
3. Check Power and Control Circuits: Advanced Check (Requires Multimeter & Diagrams): With the battery reconnected and the ignition switched to ON, the module connector disconnected, and using a digital multimeter and a reliable wiring diagram for the 2020 Equinox FPCM circuits:
   • Verify Constant Power (B+): Identify the pin on the harness connector (the one going back into the vehicle) that supplies constant battery positive voltage. Set the multimeter to DC Volts (20V range), connect the black probe to a known good ground point (unpainted metal), and touch the red probe to the identified B+ pin. Expect battery voltage (approx. 12.6V).
   • Verify Ignition Power (IGN): Identify the pin supplying switched ignition power. Test as above with the ignition in the ON position. Expect battery voltage.
   • Verify Ground (GND): Identify the ground pin(s). Set the multimeter to Ohms (lowest range). Touch one probe to the ground pin, the other to a known good vehicle ground point. Expect very low resistance (less than 1 Ohm).
   • Check Control Signal Input (from PCM): This is much more complex, requiring knowledge of the PWM signal and potentially a scope. Verifying power and ground is a primary step; signal checks are best left to professionals. If power and ground are present but the module doesn't function, it's suspect. If power or ground is missing, the issue may be elsewhere in the wiring or fuse.
4. Scan Tool Diagnosis: A professional-grade automotive scan tool can communicate with the PCM and directly query the FPCM for stored DTCs. It can also perform bi-directional controls, potentially commanding the FPCM to activate the fuel pump (a prime function) without starting the engine. This is a highly reliable diagnostic step. Codes like U0109 (Lost Communication with Fuel Pump Control Module) or specific FPCM internal fault codes (e.g., P0230 series) point directly to module issues or its circuits.
5. Substitution Test: The most practical DIY test if you suspect the module is to replace it with a known-good module. If replacing the module resolves the starting/running problems, the original module was faulty. Ensure you get the exact correct part number for your model year and engine.

Replacing the Fuel Pump Control Module

If testing indicates the FPCM is faulty, replacement is necessary:

1. Obtain the Correct Part: Crucial! Confirm the specific part number for your 2020 Equinox, including engine size. Parts can vary slightly. Cross-reference your old module's part number with the new one. Purchase a genuine GM (ACDelco) or a reputable aftermarket replacement (Dorman, Standard Motor Products). Avoid generic or low-cost modules without proven quality reviews. The 2020 Chevy Equinox fuel pump control module location suggests a high-performance demand; a low-quality part may fail prematurely.
2. Transfer the Mounting Bracket (If Needed): Sometimes the new module comes without the bracket. Remove the old module from its metal mounting bracket (if bolted together) and transfer this bracket to the new module using the same bolts. Do not discard the bracket.
3. Mount the New Module: Position the new FPCM onto the mounting bracket on the vehicle's D-pillar. Secure it with the original bolts, tightening them to a snug fit. Do not overtighten and risk cracking the plastic housing.
4. Reattach the Ground Wire: Slide the ground wire eyelet terminal over the stud or bolt hole on the module or bracket. Install the bolt and tighten it securely.
5. Reconnect the Electrical Harness: Align the wiring harness connector correctly with the socket on the FPCM. Ensure it's fully seated and listen for an audible click indicating the locking tab is fully engaged. Gently tug on the connector to confirm it's secure.
6. Reinstall the Trim Panel: Align the driver's side rear trim panel back into position. Hook it onto any top guides first. Press firmly and evenly around its entire perimeter to snap all the retaining clips back into place on the vehicle body. Ensure all clips are fully seated. Reinstall the screws that were hidden under the plastic covers. Replace the small plastic fastener covers by pressing them firmly onto the screw heads. Double-check that all fasteners are secure and the panel sits flush with surrounding trim.
7. Reconnect the Battery: Reconnect the negative (-) battery cable and tighten the clamp securely.
8. Initial Operation: Turn the ignition key to the "ON" position (do not start). Listen carefully near the rear of the vehicle. You should hear the fuel pump run for 2-3 seconds as the system primes – the sound should resume! This is a good initial sign.
9. Start the Engine: Attempt to start the engine. It should crank and start normally. Monitor the engine idle for smoothness.
10. Check for Leaks & Functionality: Verify no warning lights (like the Check Engine Light) are illuminated. Take the vehicle for a short test drive, paying attention to acceleration, cruising, and low-speed operation for any hesitation or stalling.

Important Considerations

• Programming: Some newer FPCM replacements may require configuration or programming using a dealer-level scan tool (GM MDI / GDS2) or specific aftermarket scanners capable of module programming and security relearns. Check with the part supplier and research your specific vehicle configuration before purchasing the module. It's often recommended to buy from a source with a good return policy in case programming is needed. Programming is especially likely if the module is a new GM (ACDelco) part. Unprogrammed modules might not function correctly or at all, potentially setting a fault code indicating improper configuration. Some aftermarket modules are "plug-and-play" depending on the model year and whether the OE module required programming initially. Clarify this requirement before finalizing your repair plan.
• Cause of Failure: Simple electronic component failure happens, but also investigate why it might have failed. Was there a known manufacturing issue? Was it repeatedly submerged? Was the ground connection loose or corroded? Check for wiring damage near the module mounting location. Addressing root causes prevents premature replacement.
• Cost: Parts cost for the FPCM can range significantly. Genuine GM (ACDelco) parts generally command the highest price ($150-$350+). Reputable aftermarket options like Dorman are often in the $75-$200 range. Labor costs at a dealership or independent shop will vary by location but expect 0.5 to 1.0 hours for diagnostics and the physical replacement, pushing the total repair bill (parts + labor) into the $250-$600+ range depending on part choice and labor rates.
• Warranty: Ensure the replacement part carries a solid warranty. Reputable brands typically offer 12-month to lifetime limited warranties. Keep your purchase receipt.

Conclusion

Successfully addressing issues stemming from the 2020 Chevy Equinox fuel pump control module location requires identifying the problem, locating the module (which is consistently found behind the driver's side rear trim panel), accessing it safely by removing that panel, and then performing necessary testing or replacement. By carefully following the safety procedures (especially battery disconnect and fuel pressure relief), accurately locating the module, understanding the steps for removal and installation, and being aware of potential programming requirements, owners and mechanics can effectively resolve FPCM-related failures. Recognizing the symptoms early allows for timely diagnosis and repair, restoring your Equinox's reliable performance. While diligent DIYers can perform this replacement, consider professional help if you are uncomfortable with wiring, lack diagnostic tools, or if programming is needed.