2012 Dodge Avenger Fuel Pump Relay: Location, Symptoms, and How to Fix It Yourself

The bottom line up front: If your 2012 Dodge Avenger cranks but will not start, the fuel pump relay is one of the first things you should check. The relay is not a standalone part you can simply pull out and replace. It is built into the Totally Integrated Power Module (TIPM), the main fuse and relay box located in the engine compartment on the driver's side near the battery. When this internal relay fails, the fuel pump loses power, the engine gets no fuel, and you are left stranded with a crank-no-start condition. The good news is that you do not need to spend $1,500 or more on a new TIPM. In most cases, you can fix the problem for under $200 using a proven external relay bypass method or a TIPM repair service.

Why the Fuel Pump Relay Matters So Much

The fuel pump relay acts as the gatekeeper between the battery and the fuel pump. When you turn the ignition key to the “ON” position, the Powertrain Control Module (PCM) sends a signal that energizes the relay coil. This closes an internal switch, allowing battery voltage to flow directly to the fuel pump. The pump then runs for about two to three seconds to pressurize the fuel system before you even crank the engine.

Once the engine starts and the PCM detects a valid signal from the crankshaft sensor, it keeps the relay energized so the fuel pump continues running. If the relay fails, none of this happens. No power reaches the pump, no fuel pressure builds, and the injectors cannot spray fuel into the cylinders. The engine cranks over fine, but it never fires.

On the 2012 Avenger, the fuel pump is controlled through what Chrysler calls the Auto Shutdown (ASD) relay. This relay does more than just power the fuel pump. It also controls power to the ignition coils and fuel injectors. When the ASD relay fails, you lose all three of these critical systems at once. That is why a bad relay can make the car act like it is completely out of gas even when the tank is full.

Where the Fuel Pump Relay Sits on Your 2012 Avenger

The 2012 Dodge Avenger has its primary fuse and relay box, called the Integrated Power Module (IPM), mounted in the engine bay on the driver's side. It sits close to the battery and the strut tower. The fuel pump relay is not a plug-in component you can remove with your fingers. Instead, the ASD relay is soldered directly onto the circuit board inside the TIPM. This is a critical detail because it changes how you approach the repair.

To access the TIPM, follow these steps:

  1. Open the hood and secure it with the prop rod.
  2. Look toward the left side of the engine compartment, near the battery.
  3. You will see a black plastic housing with a removable lid held by locking tabs.
  4. Press the tabs and lift the lid off to expose the fuse and relay array.
  5. The underside of the lid typically has a diagram printed on it that identifies each fuse and relay cavity.

Even though the relay itself is internal, the fuses that protect the fuel pump circuit are replaceable. On the 2010 Avenger, the ASD relay feed is distributed across several fuse cavities. The 2012 model uses a similar layout. If any of these fuses are blown, the fuel pump will not receive power even if the relay is functioning correctly. So checking fuses first is always a smart move.

Common Symptoms of a Bad Fuel Pump Relay

A failing fuel pump relay on the 2012 Avenger can produce a range of symptoms. Some are obvious, and some are intermittent, which makes them harder to diagnose. Here are the most common warning signs:

1. Engine cranks but will not start. This is the most frequent complaint. You turn the key, the starter motor spins the engine, but it never fires up. No fuel is reaching the injectors, so the cylinders never get the mixture they need.

2. No fuel pump priming noise. Turn the key to the “ON” position without cranking. You should hear a faint whirring sound coming from the rear of the car for about two seconds. This is the fuel pump building pressure. If you hear nothing, the relay is likely not sending power to the pump.

3. Intermittent starting issues. The car may start fine for days, then suddenly refuse to start. This is a classic sign of a failing relay that works when cold but fails when it heats up. The relay's internal contacts or solder joints crack under thermal stress, and the connection breaks intermittently.

4. Engine stalls while driving. If the relay cuts power while the engine is running, the engine dies without warning. This can be dangerous, especially in traffic. After a few minutes, the relay cools down, and the car restarts, only to stall again later.

5. Unexplained battery drain. In some cases, a failed relay sticks in the “closed” position. The fuel pump keeps running even with the ignition off, which drains the battery overnight.

6. Multiple attempts to start, especially in the morning. Many owners report that the problem is worse when the vehicle is cold. The relay has to work harder to close its contacts when temperatures are low.

How to Diagnose the Fuel Pump Relay Problem

Before you spend money on parts or a repair service, take a few minutes to confirm the relay is actually the problem. Here is a step-by-step diagnostic process you can do in your driveway with basic tools.

Step 1: Listen for the fuel pump. Turn the key to the “ON” position and listen near the rear of the car. If you hear no sound for two seconds, the pump is not getting power.

Step 2: Check the fuel pressure. If you have a fuel pressure gauge, connect it to the test port on the fuel rail. Turn the key to “ON.” You should see pressure rise to around 50 to 60 psi for a few seconds. If the pressure stays at zero, the pump is not running.

Step 3: Test for power at the fuel pump fuse. Open the TIPM and locate the fuel pump fuse, often labeled “FP” or “Fuel Pump” on the diagram inside the lid. Use a test light or multimeter to check if there is power at the fuse terminals when the key is turned to “ON.” If there is no power, the relay inside the TIPM is the likely culprit.

Step 4: Use a fused jumper wire for testing. This is a temporary diagnostic step only. Identify the power supply and fuel pump terminals in the relay socket. Refer to a wiring diagram for your specific Avenger. Connect them with a fused jumper wire. If the car starts and runs, the relay is definitely bad. Do not leave the jumper in place permanently—it bypasses all safety features and can create a fire hazard.

Step 5: Test the relay coil. If you remove the ASD relay from the TIPM, use a multimeter set to measure resistance. Check the relay coil terminals, typically pins 85 and 86. You should read a resistance value between 50 and 120 ohms. If you get an open circuit or a very high reading, the coil is burned out.

Understanding the Fuses That Protect the Fuel Pump Circuit

The 2012 Avenger has multiple fuses that feed the ASD relay and the fuel pump. Knowing which fuse does what can save you hours of guesswork. While the exact fuse numbering may vary slightly between model years, the 2010 Avenger layout gives a good reference:

Fuse 18 (40A Cartridge Fuse): Battery feed to the ASD relay. This is the main power source for the entire circuit.

Fuse 32 (30A Cartridge Fuse): ASD relay feed number one. This supplies power to the fuel pump and other engine components.

Fuse 26 (15A Mini Fuse): ASD relay feed number two. This powers additional circuits controlled by the relay.

Fuse 23 (15A Mini Fuse): ASD relay feed number three. This covers remaining engine control circuits.

If any of these fuses are blown, the fuel pump will not work even if the relay itself is fine. Always check the fuses first. A blown fuse is a cheap and easy fix compared to a relay repair.

Your Repair Options for a Failed Fuel Pump Relay

Once you have confirmed the relay is faulty, you have three main options. Each has its own cost, difficulty level, and permanence. Here is an honest breakdown so you can pick the one that fits your skills and budget.

Option 1: Temporary Bypass Cable Using Fuse Taps

This is the quickest way to get your car running again. It uses two fuse taps and a length of wire to route power from an alternate fuse slot directly to the fuel pump fuse slot, bypassing the failed relay entirely.

  • Cost: $25 to $35
  • Difficulty: Easy
  • Time: 5 minutes
  • Permanence: Temporary only

To do this, you need two 20-amp ATM fuse taps, one 20-amp fuse, wire connectors, and heat shrink tubing. Identify the fuel pump fuse slot (often labeled M25 or F70) and the run/start fuse slot (often labeled M37 or F91). The run/start slot only provides power when the engine is running or being started, which makes it the safer choice for this bypass. Install the fuse taps and connect the wires. Use the 20-amp fuse on the M37 side only. Leave the bottom fuse position on the M25 end empty to avoid backfeeding voltage to the run/start circuit.

Important warnings: Do not use this as a permanent fix. Fuse tap connections can loosen over time, and poor connections have been known to cause fires. Also, remote start may not work with this cable installed. Monitor the wire for heat—if it feels hot, the connection is overloaded.

Option 2: External Relay Bypass Kit

This is the most popular and cost-effective permanent solution. Instead of repairing the TIPM, you install a new, independent relay outside the TIPM that takes over the job of the failed internal relay. Mechanics and factory service bulletins recommend this as the most reliable long-term fix.

  • Cost: $50 to $150
  • Difficulty: Moderate
  • Time: 1 to 2 hours
  • Permanence: Permanent

Here is what you need:

  1. A standard automotive relay (30/40 amp, SPDT or SPST)
  2. A relay socket with wiring leads
  3. An inline fuse holder with a 15-amp or 20-amp fuse
  4. 14 to 16 gauge wire
  5. Wire strippers, crimpers, electrical tape or heat shrink
  6. A multimeter or test light

Installation steps:

  1. Disconnect the negative battery terminal.
  2. Locate the TIPM and identify the fuel pump power wire and trigger wire using a wiring diagram for your 2012 Avenger.
  3. Connect the new relay’s coil to the trigger wire. This wire carries 12 volts when the ignition is on.
  4. Connect the relay’s power contacts to a constant 12-volt source (battery) through the inline fuse.
  5. Connect the output of the new relay to the fuel pump power wire.
  6. Ground the relay properly to a clean metal surface.
  7. Reconnect the battery and test. Start the car and confirm the fuel pump runs.

This method restores reliable fuel pump operation without the risk of a temporary fuse tap setup. It also keeps the factory ASD relay in place, so your other engine systems continue to work normally.

Option 3: TIPM Professional Repair

If you prefer a factory-like solution, you can send your TIPM to a professional repair service. These services replace the soldered relay on the circuit board and return the module to you. This option restores the original design but requires removing the TIPM from your car and waiting for the repair to complete.

  • Cost: $150 to $300 (much less than a $1,500 replacement module)
  • Difficulty: Moderate (removal and reinstallation)
  • Time: 1 to 2 hours labor plus shipping time
  • Permanence: Permanent

How to Test the Relay with a Multimeter

If you want to confirm the relay is bad before buying anything, a multimeter can give you a definitive answer. Here is the process:

  1. Remove the ASD relay from the TIPM.
  2. Set your multimeter to measure resistance (ohms).
  3. Check the relay coil terminals, typically pins 85 and 86.
  4. You should read a resistance value between 50 and 120 ohms.
  5. If you get infinite resistance, the coil is open and the relay is dead.
  6. Apply 12 volts to pin 86 and ground pin 85. You should hear a click when the relay energizes.
  7. If you hear no click, the relay is faulty and needs replacement.

This test takes about five minutes and can save you from unnecessary parts purchases.

Important Safety Tips

Working on your fuel system carries real risks. Gasoline is highly flammable, and electrical shorts can start fires. Follow these rules every time:

  1. Disconnect the battery negative cable before working on any electrical component. This is non-negotiable.
  2. Never bypass the fuel pump relay with a plain wire and leave it in place. Always use a fuse in the bypass circuit.
  3. Use the correct fuse amperage ratings. Using a higher-rated fuse can lead to overheating, melted wires, or a vehicle fire.
  4. Match wire gauge to the current draw. For most fuel pumps, 12 or 14 gauge automotive wire is appropriate. Do not use thin wire—it overheats and drops voltage.
  5. Work in a well-ventilated area. Fuel vapors are explosive.

Why This Problem Is So Common on 2012 Dodge Avengers

The 2012 Avenger shares its TIPM design with many Chrysler, Dodge, Jeep, and Ram vehicles from the mid-2000s through 2020. The internal fuel pump relay is soldered directly onto a circuit board inside the TIPM, which makes it non-serviceable without specialized tools and soldering skills. Over time, the internal relay fails due to faulty diodes, worn contacts, or cracked solder joints. Electrical stress, temperature changes, and vibration all contribute to these failures.

This is a known issue across the entire Chrysler family of vehicles. The 2012 Dodge Caravan has the same problem, and the repair options are identical. If you own a 2012 Avenger and experience a crank-no-start condition, you are not dealing with a random electrical gremlin. You are dealing with a predictable, well-documented failure mode with proven fixes.

Preventing Future Relay Failures

Once you have fixed the relay problem, you can take a few steps to extend the life of your new relay and prevent a repeat failure:

  1. Keep the TIPM clean and dry. Water intrusion and corrosion accelerate relay failure. Check the TIPM seal and replace it if it is cracked or worn.
  2. Check your battery and charging system. Overvoltage from a failing alternator puts extra stress on the relay contacts.
  3. Replace fuses with the correct amperage. Never use a higher-amp fuse than specified.
  4. Consider a preventive external relay install. If you plan to keep your Avenger for several more years, installing the external relay bypass now can save you from a roadside breakdown later.

Upgrading Your Fuel Pump System

If you are replacing the fuel pump relay because of a no-start issue, it is also worth checking the condition of the fuel pump itself. A failing fuel pump can cause symptoms similar to a bad relay: hard starting, stalling, sputtering at high speeds, and loss of power under load. If your fuel pump is old or has high mileage, replacing it at the same time can save you from doing the job twice.

The fuel pump in most Dodge models is located inside the fuel tank. This in-tank design keeps the pump submerged in fuel, which helps cool it and extends its lifespan. Most modern Dodge fuel pumps operate at a pressure range of 58 to 62 psi, with flow rates varying by model and engine size. When choosing a replacement, match the pump to your vehicle's year, model, and engine type.

A Reliable Fuel Pump Source: KEMSO Brand

When it comes time to replace your fuel pump, you want a product you can trust. KEMSO is a brand that specializes in high-performance fuel pumps designed as direct OEM replacements. Their products are built to match the exact specifications of your original equipment, so you get a perfect fit without any modifications.

Here is what you get with KEMSO fuel pumps:

  1. High-performance build quality. KEMSO pumps are engineered to deliver consistent fuel pressure and flow, even under demanding driving conditions.
  2. OEM replacement design. No cutting, splicing, or custom wiring needed. The pump drops into your vehicle's fuel tank and connects to the factory harness.
  3. Lifetime warranty. KEMSO backs every pump with a lifetime warranty, giving you long-term peace of mind.

If you need a new fuel pump for your 2012 Dodge Avenger or any other vehicle, visit the KEMSO website to browse their full catalog:

https://www.kemsoracing.com/

They offer a wide range of fuel pumps for cars, trucks, motorcycles, ATVs, and watercraft. Their best sellers include fuel pumps for popular models like the Honda Civic, Subaru Impreza, BMW R1200GS, and many more. With a lifetime warranty and direct OEM replacement fitment, KEMSO gives you the reliability you need at a price that makes sense.

Final Thoughts

A failed fuel pump relay on your 2012 Dodge Avenger is not the end of the world. The relay is built into the TIPM, which makes a direct replacement impossible without expensive module repair or replacement. But you have affordable, proven alternatives. A temporary fuse tap bypass can get you moving today, while an external relay bypass kit provides a permanent, reliable fix for under $200.

Start by listening for the fuel pump prime when you turn the key. Check the fuel pump fuses in the TIPM. Test the relay with a multimeter if you can remove it. If the relay is confirmed bad, choose the repair method that matches your skills and budget. And if your fuel pump itself is also failing, consider a KEMSO replacement with its lifetime warranty.

Getting your Avenger back on the road does not have to cost a fortune. With the right information and a little patience, you can fix this common problem yourself and avoid the dealership repair bill entirely.

For more detailed wiring diagrams, relay bypass instructions, and fuel pump replacement guides, visit the KEMSO blog at https://www.kemsoracing.com/ — a trusted resource for DIY mechanics and professional technicians alike.


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