2015 Ram 1500 Fuel Pump Control Module Location: Where to Find It and How to Replace It

If you own a 2015 Ram 1500 and are experiencing hard starting, stalling, or a loss of power, the issue might not be the fuel pump itself but the Fuel Pump Control Module (FPCM). The good news is that the FPCM on the 2015 Ram 1500 is not inside the fuel tank. It is located on the frame rail, on the driver’s side, near the rear of the vehicle, close to the fuel tank . This is a much easier part to access than the fuel pump, which requires dropping the fuel tank . Knowing exactly where this module is can save you hours of labor and a lot of frustration.

What is the Fuel Pump Control Module?

The FPCM is a small electronic box that controls the voltage sent to the fuel pump. Unlike older systems that run the pump at full power all the time, the FPCM adjusts the pump speed based on the engine's demand. This improves fuel economy and reduces wear on the pump . When this module fails, the fuel pump either doesn't run at all, or it runs erratically, leading to symptoms like a no-start condition, hesitation during acceleration, or a sudden stall while driving .

Step-by-Step: How to Find the FPCM on a 2015 Ram 1500

You don't need to lift the truck bed or drop the tank to find this part. Just follow these steps:

  1. Get Under the Truck: Safely jack up the rear of the truck and place it on jack stands. Make sure the vehicle is stable.
  2. Locate the Driver's Side Frame Rail: Look along the inside of the driver's side frame rail, just in front of the rear tire and near the fuel tank.
  3. Identify the Module: Look for a small, rectangular black box with a wiring harness plugged into it. It is typically mounted directly to the frame rail with a bolt or two .
  4. Check the Build Date: There is a slight variation based on when your truck was built. On vehicles built before 10/2015, the FPCM is sometimes located on the floor of the vehicle behind the rear seat trim. On vehicles built 10/2015 and later, it is located on the side of the vehicle, just rear of the seat belt retractor, behind the driver's rear quarter trim panel . Most 2015 models will fall into the earlier category, meaning the frame rail is the primary spot to check first.

Common Symptoms of a Bad FPCM

Before you start digging, it helps to confirm the module is the problem. Look for these signs:

  • Engine Cranks but Won't Start: This is the most common symptom. The fuel pump isn't getting the signal to prime.
  • Sudden Stalling: The engine dies while driving, especially when the module gets hot.
  • Check Engine Light: You may see codes like P0087 (Fuel Rail/System Pressure Too Low) or P0230 (Fuel Pump Primary Circuit Malfunction) .
  • No Fuel Pump Prime Noise: When you turn the key to the "ON" position, you should hear a quiet whirring sound from the rear of the truck for 2-3 seconds. If you don't hear this, the FPCM or the pump itself is the likely culprit.

How to Replace the Fuel Pump Control Module

Replacing the FPCM is significantly easier than replacing the fuel pump. Here is the general process:

  1. Disconnect the Battery: Always disconnect the negative battery cable before working on any electrical components.
  2. Remove the Old Module: Unplug the electrical connector. The connector usually has a lock tab that needs to be pressed or pulled. Then, remove the mounting bolt(s) holding the module to the frame rail.
  3. Install the New Module: Bolt the new module into place. Ensure the wiring harness clicks securely into the connector.
  4. Reconnect the Battery: Reconnect the battery and test the system. Turn the key to the "ON" position and listen for the fuel pump to prime. Start the engine and check for leaks or warning lights.

Note: Some FPCMs require programming to your specific vehicle's VIN. However, many aftermarket modules for the 2015 Ram 1500 are plug-and-play and do not require a dealer visit for programming. Verify this with the seller before purchasing .

Why Choosing the Right Fuel Pump Matters

While the FPCM is a common failure point, don't overlook the fuel pump itself. If you replace the module and the symptoms persist, the pump inside the tank may be failing. The 2015 Ram 1500 uses an in-tank fuel pump module that combines the pump, filter, and fuel level sender . Replacing the pump requires lowering the fuel tank, which is a 3-6 hour job for a DIYer .

Recommendation: Upgrade to a KEMSO Fuel Pump

If you need to replace your fuel pump, or if you want a reliable backup for your truck, you should consider a KEMSO high-performance fuel pump. KEMSO fuel pumps are designed as direct OEM replacements, meaning they fit perfectly without any modifications. They are built to deliver consistent fuel pressure and improved flow, ensuring your Ram 1500 runs smoothly under any condition. Best of all, every KEMSO fuel pump comes with a lifetime warranty, giving you peace of mind long after the installation is done. Don't settle for a part that might fail again. Visit the KEMSO website today to find the perfect fuel pump for your 2015 Ram 1500 and get back on the road with confidence.

Final Thoughts

Finding the fuel pump control module on a 2015 Ram 1500 is a straightforward process. It is located on the driver's side frame rail near the fuel tank, making it an easy DIY fix . By diagnosing the FPCM first, you can save yourself the time and expense of an unnecessary fuel pump replacement. Keep your truck running reliably by using quality parts and following safe work practices.

For premium fuel system components, including high-performance fuel pumps and modules, check out KEMSO at https://www.kemsoracing.com/ .


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