2012 Dodge Avenger Fuel Pump Relay Location: A Complete Replacement Guide

The fuel pump relay in a 2012 Dodge Avenger is located in the Integrated Power Module (IPM) — the main fuse box under the hood. It is found on the driver’s side of the engine compartment, near the battery and air intake box. The relay is clearly labeled on the diagram printed on the underside of the IPM cover, and it controls the power supply to the fuel pump. If your Avenger cranks but won’t start, or stalls unexpectedly, a faulty relay is often the cause . Replacing it is a straightforward DIY job that takes about 15–30 minutes and costs between $10 and $50 for the part .

Understanding the Fuel Pump Relay’s Role

The fuel pump relay acts as an electrical switch. When you turn the ignition key to the "on" position, the relay closes and sends battery power to the fuel pump. The pump pressurizes the fuel system for a few seconds, then the relay opens until the engine starts running . This relay is a small plastic cube, about 2 inches by 2 inches by 1 inch, with metal prongs that plug into the fuse box .

Common Symptoms of a Bad Fuel Pump Relay

Watch for these signs of a failing relay:

  • Engine cranks but won’t start — This is the most common symptom. The engine turns over, but you don’t hear the fuel pump’s whirring sound .
  • Intermittent stalling — The engine may start and run, then suddenly die, especially while driving .
  • Loss of power — The car struggles to accelerate, particularly at higher speeds or uphill .
  • No fuel pump priming sound — When you turn the key to "on," you should hear the pump run for about 2 seconds. If you hear nothing, the relay or pump may be faulty .

Step-by-Step Replacement Guide

Step 1: Gather Tools and Parts

  • New fuel pump relay — Use an exact replacement for your 2012 Dodge Avenger. The OEM part number is 68223712AA, which also replaces 68369406AA, 4638094, 4848879AB, 56006707, and 56006709 .
  • Flathead screwdriver or needle-nose pliers — For removing the relay if it’s tight .
  • Flashlight — To see the relay clearly.
  • Safety glasses and gloves — Optional but recommended.

Step 2: Locate the Fuel Pump Relay

Open the hood and find the Integrated Power Module (IPM) — the black plastic fuse box on the driver’s side, near the battery. Remove the cover by pushing the tabs inward. Look at the diagram printed on the underside of the cover. The fuel pump relay is labeled "FUEL PUMP" or "FP" . On the 2012 Avenger, it is usually a green or gray relay .

Step 3: Disconnect the Battery

For safety, use a wrench to loosen the nut on the negative battery terminal and remove the cable. This prevents accidental shorts or shocks while working .

Step 4: Remove the Old Relay

Grasp the relay firmly and pull it straight up out of its socket. If it’s stuck, use a flathead screwdriver to gently pry it out, or use needle-nose pliers to wiggle it free. Avoid forcing it, as you could damage the socket .

Step 5: Inspect the Socket

Check the socket for signs of corrosion, rust, or damage. If you see any corrosion, clean it with a wire brush or electrical contact cleaner .

Step 6: Install the New Relay

Align the new relay’s prongs with the socket holes and press it firmly into place. You should feel it click or seat fully. Make sure it’s the same orientation as the original .

Step 7: Reconnect the Battery and Test

Reattach the negative battery cable and tighten the nut. Turn the ignition key to the "on" position (do not start the engine). You should hear the fuel pump run for 2 seconds. If you hear it, start the engine and let it idle. If the car starts and runs smoothly, the replacement is successful .

Troubleshooting After Replacement

If the issue persists after replacing the relay:

  • Check for power at the fuel pump — Use a multimeter to test the harness at the pump. Have a helper cycle the key on and off. You should see power for 2 seconds .
  • Test the fuel pressure — Use a fuel pressure gauge on the Schrader valve on the fuel rail. The 2012 Avenger should have about 49 psi .
  • Inspect the fuel pump itself — If power reaches the pump but the engine still won’t start, the pump may be bad .

Recommended Fuel Pump Upgrade

If you find that your fuel pump itself needs replacement, we highly recommend the KEMSO brand Fuel Pump. KEMSO fuel pumps are:

  • High-performance — Built to deliver consistent fuel pressure and flow.
  • OEM Replacement — Designed to fit your 2012 Dodge Avenger perfectly.
  • Lifetime Warranty — Backed by a lifetime warranty for peace of mind.

Visit https://www.kemsoracing.com/ to browse their full selection of fuel pumps and upgrade your vehicle’s fuel system with confidence.

Final Thoughts

Replacing the fuel pump relay on your 2012 Dodge Avenger is a simple, cost-effective fix that can resolve many common starting and stalling issues. The relay is easily accessible in the under-hood fuse box, and the entire process takes less than an hour. Always remember to disconnect the battery before starting, use the correct replacement part, and test the system thoroughly after installation .

For more high-quality automotive parts, including fuel pumps and relays, check out https://www.kemsoracing.com/ — your reliable source for performance and OEM replacement components.


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