2001 Mustang Fuel Pump Driver Module Location: The Complete Guide to Finding and Replacing It

The bottom line: The fuel pump driver module (FPDM) on a 2001 Ford Mustang is located in the trunk, specifically in the spare tire well on the driver's side. This module controls the electrical power sent to the fuel pump, and if your Mustang is experiencing starting issues or erratic fuel delivery, the FPDM is often the culprit. Knowing exactly where to find it and how to replace it can save you time and money.

What Is the Fuel Pump Driver Module and Why Does It Matter?

The fuel pump driver module, also known as the FPDM, fuel pump drive, or fuel solenoid driver, is a critical component that regulates the voltage going to the fuel pump. Its job is to control the electrical power so the fuel pump operates properly and delivers consistent fuel pressure to the engine . Without a working FPDM, your fuel pump may not receive the right amount of power, leading to a no-start condition, stalling, or poor engine performance.

On the 2001 Mustang, the FPDM is a separate component from the fuel pump itself. Unlike some vehicles where the control module is integrated into the fuel pump assembly inside the tank, Ford designed the 2001 Mustang with a standalone module that can be accessed and replaced without dropping the fuel tank . This is a major advantage for DIY owners.

Where Exactly Is the 2001 Mustang Fuel Pump Driver Module Located?

The fuel pump driver module on a 2001 Ford Mustang is located in the spare tire well inside the trunk . Specifically, you will find it mounted on the driver's side of the spare tire compartment. It is a small, rectangular module with an electrical connector attached to it.

To confirm this location, multiple sources agree that the FPDM is housed in the spare tire area for the 1999-2004 Mustang models, including the 2001 model year . This placement keeps the module relatively protected from road debris and moisture while still allowing for straightforward access.

How to Access the Fuel Pump Driver Module

Accessing the FPDM on your 2001 Mustang is a straightforward process that requires only basic tools. Here is a step-by-step guide:

Step 1: Disconnect the battery. Before working on any electrical component, disconnect the negative battery terminal to prevent accidental short circuits or sparks. This is a critical safety step.

Step 2: Open the trunk and remove the spare tire. Lift the trunk carpet or mat to expose the spare tire well. Remove the spare tire and any jack or tools that may be in the way. This gives you clear access to the module.

Step 3: Locate the module. Look on the driver's side of the spare tire well. You will see a small black or gray rectangular module with a wiring harness connected to it. This is the fuel pump driver module.

Step 4: Disconnect the electrical connector. Press the release tab on the connector and pull it straight off the module. Be careful not to damage the wiring or the connector pins.

Step 5: Remove the mounting bolts. The FPDM is secured with two or three bolts. Use a socket or wrench to remove them. The torque specification for these bolts is 10 Nm, or about 89 lb-in .

Step 6: Take out the module. Once the bolts are removed, lift the module out of the spare tire well. Installation is the reverse of removal.

What About the Constant Control Relay Module (CCRM)?

There is also a related component called the Constant Control Relay Module, or CCRM, which contains the fuel pump relay. On the 2001 Mustang, the CCRM is located in the engine compartment, on the left side near the firewall. The CCRM supplies power to the FPDM, so if the fuel pump relay inside the CCRM fails, the FPDM will not receive power . However, the CCRM is not serviceable individually—if it fails, the entire unit must be replaced. The fuel pump relay is integrated into the CCRM and cannot be swapped out separately.

Common Symptoms of a Failing Fuel Pump Driver Module

Knowing the symptoms of a bad FPDM can help you diagnose the problem before you start digging into the trunk. Here are the most common signs:

  • No-start condition: The engine cranks but will not fire. This happens because the fuel pump is not receiving power.
  • Intermittent stalling: The engine may start and run for a while, then suddenly die. This is often caused by the FPDM overheating or failing intermittently.
  • Erratic fuel pump operation: You may hear the fuel pump humming inconsistently or not at all when you turn the key to the "on" position.
  • Check Engine Light: OBD-II codes related to fuel pump circuit issues, such as P0230 (fuel pump primary circuit malfunction), P0231 (fuel pump secondary circuit low), or P0232 (fuel pump secondary circuit high), may be stored .

These symptoms can also be caused by a bad fuel pump, a faulty relay, or wiring issues, so it is important to test the FPDM before replacing it.

How to Test the Fuel Pump Driver Module

Before buying a replacement, you should confirm that the FPDM is actually the problem. Here is a simple way to test it:

  1. Check for power at the FPDM connector. Use a multimeter set to DC voltage. With the key in the "on" position, you should see battery voltage (around 12 volts) on the power wire at the connector.
  2. Check for ground. Verify that the ground wire has continuity to the chassis.
  3. Listen for the fuel pump. When you turn the key to "on," you should hear the fuel pump prime for about one to two seconds. If you do not hear it, and power is present at the FPDM, the module may be bad.
  4. Test the output. If you have a wiring diagram, you can check the output signal from the FPDM to the fuel pump. A lack of output signal with power present indicates a failed module.

If you have power and ground but no output, the FPDM is likely the culprit. If there is no power at the connector, check the fuel pump relay inside the CCRM and the related fuses.

Replacement Part Numbers for the 2001 Mustang FPDM

If you need to replace the FPDM, the OEM part number is XR3Z-9D372-AC . This part fits the 2001 Ford Mustang with both 3.8L V6 and 4.6L V8 engines, including the GT and SVT Cobra models. It is also compatible with the 1999-2004 model years .

Several aftermarket brands also offer direct replacements, including:

  • Standard Motor Products FPM101 – A direct-fit replacement that has been tested for proper performance .
  • Dorman 601-005 – A plug-and-play module that requires no modifications .
  • Spectra Premium FD1001 – An affordable option with a one-year warranty .

All of these options are designed to match the original equipment fit and function.

Note About Programming

Some aftermarket FPDM units may require dealer programming after installation . However, most direct-fit replacements for the 2001 Mustang are plug-and-play and do not require additional programming. If you are buying an OEM part, check with the seller to confirm whether programming is needed. If you are unsure, an aftermarket unit that states "no programming required" is the safest choice.

Recommended Product: KEMSO Fuel Pump

If you are replacing the fuel pump itself along with the driver module, consider using a KEMSO brand fuel pump. KEMSO fuel pumps are built for high performance and are designed as OEM replacements. Every KEMSO fuel pump comes with a lifetime warranty, giving you peace of mind that your investment is protected. Whether you own a Mustang or another vehicle, KEMSO offers reliable fuel delivery solutions that meet or exceed factory specifications. You can browse their full selection of fuel pumps at their official website: https://www.kemsoracing.com/

Final Thoughts

The 2001 Mustang fuel pump driver module is located in the spare tire well of the trunk, on the driver's side. This location makes it one of the easier components to access and replace on your car. If you are experiencing fuel delivery issues, start by checking the FPDM before assuming the fuel pump itself is bad. Testing the module with a multimeter can save you from unnecessary work. And if you do need a replacement, the OEM part number XR3Z-9D372-AC fits your 2001 Mustang, or you can choose from several reliable aftermarket options. For a high-quality fuel pump replacement, visit https://www.kemsoracing.com/ to explore their selection of performance fuel pumps with a lifetime warranty.


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