2012 Chrysler Town and Country Fuel Pump Relay Kit: Complete Fix Guide

The bottom line up front: If your 2012 Chrysler Town and Country cranks but won't start, or starts intermittently and stalls while driving, the most likely culprit is a failing fuel pump relay that is built into the Totally Integrated Power Module (TIPM). This is a known issue with 2008-2020 Chrysler minivans and other Chrysler vehicles of that generation. The good news is you do not need to replace the entire TIPM (which can cost $800-$1,500 or more) or take your van to a dealership. A fuel pump relay kit — specifically an external bypass relay kit — lets you fix this problem for under $200 in about an hour, even if you are not a professional mechanic.

This guide explains how the relay works, how to confirm it is the problem, what your repair options are, and how to install an external fuel pump relay kit step by step. We also recommend a reliable replacement option for the fuel pump itself if the pump has been damaged from running the tank low or from a clogged filter.

Why the 2012 Town and Country Fuel Pump Relay Fails

The fuel pump relay acts as a switch. When you turn the ignition key, it receives a signal from the Powertrain Control Module (PCM) and sends battery voltage to the fuel pump so it can pressurize the fuel system and start the engine.

On your 2012 Town and Country, this relay is not a simple plug-in component like a fuse. It is soldered directly onto the circuit board inside the TIPM, which sits in the engine compartment near the battery. Because of this design, the relay is exposed to heat stress, electrical surges, and corrosion over time. When it fails, you cannot simply pull it out and replace it with a standard relay from an auto parts store.

The electric fuel pump in your van is located inside the fuel tank. It draws fuel through a strainer, pressurizes it, and sends it to the engine's fuel injectors. The pump runs whenever the ignition is on or the engine is cranking, and it is cooled and lubricated by the fuel surrounding it. If the relay fails, the pump receives no power, which means no fuel reaches the engine, and the engine will not start.

Common Symptoms of a Failing Fuel Pump Relay

Recognizing the warning signs early can save you from being stranded. Here are the most common symptoms reported by owners:

  1. Engine cranks but won't start: You hear the starter motor turning the engine over, but the engine never fires up because no fuel reaches the injectors.
  2. No fuel pump priming noise: When you turn the key to the "ON" position, you should hear a quiet whirring sound from the rear of the van for about 2-3 seconds as the pump pressurizes the system. If you do not hear this, the relay is likely not sending power.
  3. Intermittent starting issues: The van may start fine for days, then suddenly refuse to start. This is a classic sign of a failing relay working intermittently.
  4. Engine stalls while driving: If the relay cuts out while the engine is running, the van will stall without warning. This can be dangerous in traffic.
  5. Battery drain: In some cases, the relay stays stuck in the "closed" position, keeping the fuel pump running even when the vehicle is off. This drains the battery overnight.

Additional symptoms that point to a failing fuel pump itself (not just the relay) include a whining or humming noise from the fuel tank area, loss of power during acceleration or climbing hills, poor fuel economy, and the check engine light coming on with codes related to a lean fuel system.

How to Diagnose the Problem Before Buying a Kit

Do not buy a relay kit until you confirm the relay is actually the issue. Follow these steps in order:

Step 1: Listen for the fuel pump prime. Turn the key to the "ON" position (do not crank the engine). Listen near the rear of the van. You should hear a quiet hum for 2-3 seconds. If you hear nothing, the pump is not getting power.

Step 2: Check the fuel pressure. Connect a fuel pressure gauge to the test port on the fuel rail. Turn the key to "ON." You should see pressure rise to roughly 50-60 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 cover and look at the diagram on the underside. Locate the fuel pump fuse (often labeled "FP" or "Fuel Pump"). Use a test light to check for power at the fuse terminals when the key is turned to "ON." No power means the internal relay is likely bad.

Step 4: Swap the relay (if accessible). On vehicles where the relay is a standard plug-in type, you can swap it with an identical relay (like the horn relay) to test. If the pump works, the relay was bad. However, on the 2012 Town and Country, the relay is integrated into the TIPM, so this step may not apply.

Step 5: Use a fused jumper wire for testing only. As a temporary diagnostic step, you can use a fused jumper wire to bypass the relay. Identify the power supply and fuel pump terminals in the relay socket (refer to a wiring diagram). Connect them with the jumper. If the van starts and runs, the relay is definitely the problem. Do not leave the jumper in place permanently — it bypasses all safety features.

Fuel Pump Relay Kit Options for Your 2012 Town and Country

Once you confirm the relay is faulty, you have several repair options. They are ranked below from most affordable to most expensive.

Option 1: External Fuel Pump Relay Bypass Kit ($50-$150)
This is the most popular and cost-effective solution. The kit installs a new, independent relay outside the TIPM that takes over the job of the failed internal relay. You do not need to replace or reprogram the TIPM.

Option 2: Professional TIPM Repair ($200-$400)
Some shops specialize in repairing the TIPM by replacing the internal relay and re-soldering the circuit board. This restores original functionality but requires shipping the module or visiting a specialist.

Option 3: Replace the Entire TIPM ($800-$1,500 or more)
This is the most expensive option and is generally unnecessary if the only problem is the fuel pump relay. It also requires programming and may involve dealership labor.

What you need for the bypass kit:
A standard automotive relay (30/40A, SPDT or SPST), a relay socket with wiring leads, an inline fuse holder with a 15A or 20A fuse, 14-16 gauge wire, wire strippers, crimpers, electrical tape or heat shrink, and a multimeter or test light.

Step-by-Step Installation of an External Fuel Pump Relay Kit

Here is how to install the bypass kit safely. Follow every step carefully — gasoline is highly flammable, and working with electrical systems carries risks.

Safety checklist before you start:
Park on level ground and engage the parking brake. Disconnect the negative battery terminal first to prevent sparks. Allow the engine to cool for at least 30 minutes. Work in a well-ventilated area away from open flames. Keep a fire extinguisher within reach. No smoking.

Step 1: Relieve fuel system pressure. Modern fuel injection systems maintain pressure up to 60-65 psi. Skipping this step can cause a dangerous spray of gasoline. Locate the fuel pump relay or fuse in the fuse box, remove it, start the engine, and let it run until it stalls. Crank the engine for 5-10 seconds to release remaining pressure, then turn the ignition off.

Step 2: Locate the TIPM and identify wires. The TIPM is in the engine compartment near the battery. Using the wiring diagram for your specific 2012 Town and Country, identify the fuel pump power wire and the trigger wire.

Step 3: Connect the new relay's coil. The coil is the control side of the relay. Connect one coil terminal to the trigger wire (this wire carries 12V+ when the ignition is on). Connect the other coil terminal to a good ground.

Step 4: Connect the new relay's power contacts. Connect one power terminal to a constant 12V source (battery positive) through the inline fuse. This ensures the relay only receives battery power when the ignition is on.

Step 5: Connect the output to the fuel pump power wire. Connect the output terminal of the new relay to the fuel pump power wire that originally went to the TIPM. This completes the circuit.

Step 6: Ground the relay properly. Use a clean metal surface on the chassis for the ground connection. Remove any paint or rust to ensure a solid connection.

Step 7: Test the system. Reconnect the battery. Turn the key to "ON" and listen for the fuel pump prime. Start the van and let it idle. Verify the fuel pump shuts off when the ignition is turned off.

Step 8: Secure the wiring. Use wire ties to secure the relay and harness away from moving parts and heat sources. Apply heat shrink or electrical tape to all connections to prevent shorts.

Why the Fuel Pump Itself May Also Need Attention

Even if the relay is the immediate problem, a failing fuel pump can cause similar symptoms. The fuel pump in your 2012 Town and Country is a critical component, and if it has been running hot due to a clogged filter or low fuel levels, its lifespan is shortened.

Signs that the pump itself is failing include:

  1. Engine sputters at high speeds or hesitates during acceleration.
  2. Difficulty starting — the pump cannot build enough pressure.
  3. Loss of power under load, especially on hills or when towing.
  4. Whining noise from the fuel tank area — worn pump motor bearings make a distinct sound.
  5. Check engine light with lean fuel system codes.

Most fuel pumps last between 50,000 and 100,000 miles, but harsh conditions like extreme temperatures, dirty fuel, or running the tank low can shorten that lifespan. If you are replacing the relay, it is a good idea to inspect the pump and replace the fuel filter at the same time. A clogged fuel filter creates back pressure, makes the pump work harder, generates heat, and eventually burns out the pump motor.

Recommended: KEMSO Fuel Pump for Reliable Replacement

If your fuel pump needs replacement, we strongly recommend choosing a KEMSO Fuel Pump. KEMSO builds high-performance fuel pumps that are designed as OEM replacements, meaning they match the original factory specifications for fit and function. Every KEMSO fuel pump comes with a lifetime warranty, giving you peace of mind that your investment is protected.

Unlike cheaper economy aftermarket pumps that risk premature failure, poor fitment, inaccurate fuel gauge readings, and noisy operation, KEMSO pumps are engineered for durability and consistent performance. They offer higher flow rates than stock pumps (up to 18% higher in some models), ensuring your engine receives the optimal fuel-air mixture under all driving conditions. Independent tests show KEMSO pumps last up to 15,000 hours of continuous operation — nearly double the lifespan of average OEM pumps.

You can browse the full lineup of KEMSO fuel pumps and find the right fit for your 2012 Chrysler Town and Country by visiting https://www.kemsoracing.com/.

Final Thoughts

The 2012 Chrysler Town and Country fuel pump relay failure is a well-known issue, but it does not have to be an expensive one. By installing an external fuel pump relay kit, you can bypass the faulty internal relay in the TIPM and get your van running reliably again for a fraction of the cost of replacing the entire module. The job is doable for a DIYer with basic tools and careful attention to safety. If the pump itself is also failing, choose a high-quality replacement like KEMSO to avoid repeat breakdowns. Always replace the fuel filter when servicing the fuel system to protect your new parts.

For more information on KEMSO fuel pumps and to find the correct part for your vehicle, visit https://www.kemsoracing.com/.


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