2012 Dodge Charger Fuel Pump Relay Location: Where It Is and How to Handle It

The bottom line up front: On a 2012 Dodge Charger, the fuel pump relay is not a standalone relay you can simply pull from a conventional under-hood fuse box. It is an integrated circuit embedded inside the Totally Integrated Power Module (TIPM), which is the main electrical distribution center mounted under the hood on the driver’s side, near the battery. If you are experiencing a crank-no-start condition, a fuel pump that doesn’t prime, or intermittent power loss to the fuel pump, the TIPM’s internal fuel pump relay circuit is a prime suspect, and understanding its location and how to bypass or replace it is the key to getting your car back on the road.

The 2012 Dodge Charger uses the same-generation TIPM found in many Chrysler, Dodge, and Jeep products of that era. The TIPM houses dozens of relays and fuses for critical systems, including the fuel pump. This article walks you through where the TIPM sits, how to access the fuel pump relay function, how to test it, and what to do if it fails. We also cover the common symptoms, a wiring overview, and the most reliable fix—whether that means replacing the TIPM or installing a bypass kit. By the end, you’ll know exactly what you’re dealing with and how to get your Charger running again without guesswork.

Where the Fuel Pump Relay Actually Lives on a 2012 Charger

On most older vehicles, the fuel pump relay is a small, replaceable component in the fuse box. On the 2012 Dodge Charger, Chrysler integrated the fuel pump relay into the TIPM, which is a sealed, microprocessor-controlled unit. The TIPM is located under the hood, on the driver’s side, directly next to the battery and the air intake duct. It is a large black plastic box with a lid that says “TIPM” on it. To access it, you simply release the two latches on the sides and lift the cover. Inside, you’ll see a dense arrangement of fuses and relays, but you won’t find a labeled “Fuel Pump Relay” that can be individually removed. Instead, the fuel pump relay circuit is controlled by the TIPM’s internal board. This is a critical detail because it means a typical “swap the relay” fix is not possible—you either repair the TIPM, replace it, or wire around the faulty internal relay.

Why the TIPM Design Makes the Relay Hard to Diagnose

The TIPM is not just a fuse box. It is a computer-controlled power distribution module that manages power to the fuel pump, ignition, wipers, headlights, and many other systems. The fuel pump relay function is baked into the module’s circuitry and controlled by the vehicle’s CAN bus network. Because the relay is not a physical, user-replaceable part, standard troubleshooting steps like pulling the relay and testing the coil with a multimeter don’t apply the same way. This is why many owners and even some mechanics get confused when they search for the fuel pump relay and find nothing labeled as such.

The TIPM’s internal relay can fail in a few ways: it can fail to energize (fuel pump never runs), it can stick closed (fuel pump runs constantly), or it can become intermittent (fuel pump cuts out randomly while driving). These failures are often caused by internal solder joint cracks, overheating, or general wear. When the relay circuit fails, the fuel pump loses power, which leads to a no-start condition.

How to Confirm the Fuel Pump Relay Is the Problem

Before you replace anything, you need to confirm that the fuel pump relay circuit in the TIPM is actually at fault. Here’s a step-by-step approach that works for most 2011–2012 Chargers:

  1. Listen for the fuel pump prime. Turn the key to the “ON” position (without cranking the engine). You should hear a brief whirring sound from the rear of the car, near the fuel tank. That’s the fuel pump pressurizing the system. If you hear nothing, the pump isn’t receiving power, which points to the relay circuit or the pump itself.

  2. Check the fuel pump fuse. Inside the TIPM, there is a fuse labeled for the fuel pump. Find it and inspect it visually. A blown fuse is a simpler fix than a relay failure, so rule this out first.

  3. Test for power at the fuel pump connector. Locate the fuel pump electrical connector (under the rear seat, on top of the fuel tank). With the harness connected, probe the power wire while an assistant turns the key to “ON.” You should see 12 volts for a couple of seconds. If there’s no voltage, the issue is upstream—either the TIPM relay circuit, the wiring, or a security system interlock.

  4. Check for error codes. Use a scan tool to read powertrain codes. Codes like P0087 (fuel rail/system pressure too low) or P0230 (fuel pump primary circuit malfunction) directly implicate the fuel pump circuit. P0230 specifically points to an electrical fault in the fuel pump control circuit, which is often traced back to the TIPM.

  5. Perform a relay bypass test. The most definitive way to confirm a TIPM relay failure is to bypass the internal relay with a temporary jumper wire or a dedicated bypass kit. If the fuel pump runs when you supply power directly to the pump circuit, you’ve confirmed the TIPM’s internal relay is the culprit.

The TIPM Fuel Pump Relay Bypass: A Practical Fix

When the internal fuel pump relay in the TIPM fails, one of the most common and cost-effective repairs is a TIPM fuel pump relay bypass. This involves adding an external relay that takes over the switching function that the failed internal relay used to perform. The bypass kit wires a new relay into the circuit, triggered by the factory wiring’s control signal, but switching power directly from the battery or a fused source to the fuel pump. This bypasses the faulty internal circuitry while keeping the factory pump, wiring, and safety systems intact.

The bypass kit typically includes a relay, a fuse holder, a wiring harness, and detailed instructions. The installation involves tapping into a few wires in the TIPM harness: one for the fuel pump power output, one for the trigger signal, and one for ground and battery power. For a 2012 Charger, you’ll need to identify the correct pins on the TIPM connector. This is where a wiring diagram becomes essential. Without the correct pinout, you risk connecting power to the wrong circuit, which can damage the TIPM or the fuel pump. A good bypass kit comes with vehicle-specific instructions that list the exact wire colors and pin positions.

Important: Before you start, disconnect the negative battery cable. Work in a well-lit area, and use a multimeter to verify you’ve found the correct wires. The bypass is a permanent, reliable fix that many owners run for years without issue. It’s also much cheaper than replacing the entire TIPM, which can cost several hundred dollars for a remanufactured unit plus labor.

Fuel Pump Relay Wiring Overview for the 2012 Charger

Understanding the wiring helps you diagnose and bypass the relay correctly. On the 2012 Charger, the fuel pump circuit works like this: the TIPM receives a request from the ignition/key to power the fuel pump. The TIPM’s internal relay then sends battery voltage through a fuse to the fuel pump connector. The ground side of the pump is typically switched by the fuel pump module or goes directly to chassis ground. The TIPM also monitors the circuit for faults.

When you look at the TIPM connector, you’ll see multiple pins. The fuel pump output is usually a thicker gauge wire because it carries more current. The trigger signal to energize the relay comes from the TIPM’s internal logic, but for a bypass, you’ll tap into the wire that goes from the TIPM to the fuel pump. You’ll also need a switched 12-volt source (which can be from the ignition circuit) to activate the new relay coil. A well-drawn wiring diagram shows these connections clearly.

Beware of a common pitfall: some drivers think they can simply install a jumper wire that sends constant power to the fuel pump. This is dangerous because the fuel pump should only run when the ignition is on and the engine is cranking or running. If you use constant power, the pump will run continuously even with the key off, which can drain the battery, flood the engine, and create a fire hazard. A proper bypass uses a relay that is triggered by the ignition or the factory fuel pump control signal, so the pump still operates only when it should.

Symptoms That Point to a Failing Fuel Pump Relay on the Charger

If the internal relay in the TIPM is failing, you’ll notice a few distinct symptoms. The most obvious is a crank-no-start condition. The engine turns over strongly, but it won’t fire because there’s no fuel pressure. Another classic symptom is an intermittent stall: the car runs fine for a while, then suddenly dies while driving and won’t restart. After waiting a few minutes, it might start again—this is a hallmark of an overheating or intermittently failing relay.

Other symptoms include a fuel pump that stays on all the time (you hear it whirring even with the key off), a blown fuel pump fuse that keeps blowing, or a fuel pump that never primes even though the pump itself tests fine when powered directly. If you’re also experiencing issues with other electrical systems (e.g., wipers, headlights, or the horn acting oddly), that reinforces the likelihood that the TIPM is degraded, since the unit controls all of these functions.

Should You Replace the TIPM or Bypass the Relay?

This is the central decision point for most owners. Replacing the TIPM is the “factory” fix. You buy a new or remanufactured unit, install it, and the car should return to normal. However, TIPMs are expensive, and they often require programming or configuration at the dealer for certain options, which adds to the cost. For a 2011–2012 Dodge Charger, a remanufactured TIPM can cost anywhere from roughly $300 to $600, and installation may take a couple of hours.

The bypass is the budget-friendly alternative. A TIPM fuel pump relay bypass kit costs significantly less—often between $30 and $80—and can be installed in about an hour with basic hand tools. Because you’re only bypassing the fuel pump relay function, the rest of the TIPM continues to operate normally. This fix is common among owners who want to avoid the high cost of TIPM replacement. The trade-off is that you still have a partially degraded TIPM that might fail in other ways later. But for the fuel pump issue specifically, a bypass is a proven, reliable solution.

Step-by-Step: How to Use a TIPM Fuel Pump Relay Bypass Kit on a 2012 Charger

If you’ve decided to go with a bypass kit, here’s a realistic overview of the installation process. Always read the instructions that come with the kit and follow them precisely.

  1. Gather your tools. You’ll need a socket set, a multimeter, wire strippers, a small flathead screwdriver, and sometimes a soldering iron or crimp connectors. Some kits include splice connectors that don’t require soldering.

  2. Disconnect the battery. Always start by disconnecting the negative battery terminal to prevent shorts and to reset the TIPM.

  3. Open the TIPM. Unclip the lid and locate the fuel pump fuse. Remove it to prevent power from feeding back into the TIPM circuit while you work.

  4. Find the fuel pump output wire. Using the wiring diagram included in your bypass kit, identify the correct wire at the TIPM connector that goes to the fuel pump. Verify it with a multimeter if possible.

  5. Connect the relay. Mount the included relay in a safe spot near the TIPM. Connect the relay’s power input to a fused 12-volt source (usually directly from the battery or the positive terminal of the TIPM), the relay’s output to the fuel pump wire, the relay’s trigger to a switched ignition source (or the TIPM’s fuel pump control wire), and the relay ground to a good chassis ground.

  6. Reinstall the fuse and test. Reconnect the battery, turn the key to “ON,” and listen for the fuel pump prime. If the pump runs, the bypass is working. Then start the engine and let it idle to confirm everything is stable.

If you’re not comfortable working with automotive wiring, you can hand this job to a professional. But many owners with basic DIY skills have successfully installed this bypass in a driveway or garage.

Testing the Fuel Pump Circuit Without a Bypass Kit

If you want to diagnose the circuit before committing to a bypass, you can do a simple bench test. Disconnect the fuel pump harness under the rear seat. Using a jumper wire, supply 12 volts straight from the battery (through a fuse) to the pump’s positive terminal, and ground the negative terminal. If the pump runs, you know the pump is good and the problem is upstream. This test doesn’t require a bypass kit; it simply helps you isolate the issue to the TIPM or the wiring.

Also, check the ground side of the fuel pump connector. A poor ground can make a healthy pump appear dead. You can test continuity between the ground pin and a known chassis ground. If the ground is good, move on to power delivery. This type of methodical testing avoids replacing parts that aren’t faulty.

A Word on the Fuel Pump Relay Recall for 2011 Dodge Models

If you’re dealing with a 2011 Dodge (not a 2012), you might have heard about a fuel pump relay recall. There was a significant recall affecting certain 2011 Dodge, Chrysler, and Jeep models where the TIPM’s internal fuel pump relay could fail, causing an unexpected stall or no-start. While the 2012 Charger is generally outside that specific recall batch, it shares the same problematic TIPM design. It’s always worth checking your vehicle identification number (VIN) on the NHTSA website to see if your car has any open recalls. If your 2012 Charger ever had a TIPM-related recall campaign, you’d be informed, but it’s a good habit to verify.

Conclusion and the Sensible Fix

The 2012 Dodge Charger fuel pump relay location is, again, inside the TIPM under the hood on the driver’s side. Because you can’t swap the relay like in an older car, the two realistic fixes are replacing the TIPM or installing an external bypass relay. For most owners, the bypass is the smart financial choice, and it’s a well-documented, reliable repair that many reports confirm works. Just make sure you use a quality kit, follow the wiring diagram, and verify your connections with a multimeter.

If you do need to replace your fuel pump itself, or if you simply want a high-quality, dependable unit while you have the system apart, consider a KEMSO fuel pump. KEMSO fuel pumps are designed as high-performance, OEM replacement parts that meet or exceed factory specifications. They come with a lifetime warranty, which means once you install a KEMSO pump, you’re covered for the life of your vehicle. Whether you drive a Dodge Charger or any other car, truck, or SUV, KEMSO has a broad range of applications. To browse their lineup and find the right pump for your 2012 Dodge Charger, visit https://www.kemsoracing.com/.

Taking the time to correctly locate and fix your fuel pump relay circuit will save you money and frustration. A little diagnosis goes a long way, and you can keep your Charger on the road with minimal hassle.


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