2012 Chrysler 200 Fuel Pump Relay: Symptoms, Diagnosis, and Permanent Fixes

If your 2012 Chrysler 200 cranks but won’t start, especially when the engine is cold, the most likely culprit is a failing fuel pump relay inside the Totally Integrated Power Module (TIPM). This is a widespread, well-documented problem on Chrysler vehicles from this era, and it can leave you stranded without warning. The good news is that you don’t need to spend over $1,500 on a new TIPM from the dealer. A TIPM fuel pump relay bypass is a proven, inexpensive, and permanent solution that restores fuel pump operation by routing power through an external relay or bypass cable. In this guide, we’ll walk you through the symptoms, how to confirm the relay is bad, and three different ways to fix it—ranging from a temporary five-minute patch to a permanent external relay installation.

Why the 2012 Chrysler 200 Fuel Pump Relay Fails

The TIPM is a central electrical control unit located under the hood of your vehicle. It acts as a modern fuse box and manages power distribution for many systems, including the fuel pump relay. On the 2012 Chrysler 200, the fuel pump relay is not a simple plug-in component you can swap out like a fuse. Instead, it is soldered directly onto a circuit board inside the TIPM, making 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. The result is an intermittent or complete loss of power to the fuel pump, leaving you with a crank-no-start condition. This design flaw affects numerous Chrysler, Dodge, Jeep, and Ram vehicles built between roughly 2008 and 2020, so you are not alone in dealing with this issue.

Common Symptoms of a Bad Fuel Pump Relay

Recognizing the warning signs early can save you from being stranded. Here are the most common symptoms to watch for on your 2012 Chrysler 200:

1. Engine cranks but won’t start – This is the most common symptom. You hear the starter motor turning the engine over, but the engine never fires up because no fuel is reaching the injectors.

2. No fuel pump priming noise – When you turn the key to the “ON” position (before cranking), you should hear a quiet whirring sound from the rear of the car for about 2–3 seconds as the fuel pump pressurizes the system. If you don’t hear this, 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 is working intermittently.

4. Engine stalls while driving – If the relay cuts out while the engine is running, the engine will stall without warning. This can be dangerous, especially in traffic.

5. Battery drain – In some cases, a failed relay can stay stuck in the “closed” position, keeping the fuel pump running even when the vehicle is turned off. This will drain your battery overnight.

6. Vehicle acts like it’s out of gas – Even with a full tank, the car may crank but not fire, or it may start briefly and then die seconds or minutes later.

How to Diagnose the Fuel Pump Relay Problem

Before you start replacing parts, follow these steps to confirm the fuel pump relay is the issue. You can do most of this with basic hand tools and a test light.

Step 1: Listen for the fuel pump prime. Turn the key to the “ON” position and listen carefully near the rear of the car. You should hear a quiet humming sound for about 2–3 seconds as the pump pressurizes the system. If you hear nothing, the pump may not be getting power.

Step 2: Check the fuel pump relay and fuse. Locate the power distribution box (TIPM) under the hood. Find the fuel pump relay and fuse. Refer to the diagram on the fuse box cover. Swap the fuel pump relay with an identical relay (e.g., the horn relay). If the pump starts working, the relay was bad. Visually inspect the fuel pump fuse. If it is blown, replace it with one of the same amperage. If it blows again, there is a wiring short.

Step 3: Test for power at the fuel pump fuse. Use a test light to check for voltage at the fuel pump fuse terminals (often labeled “FP” or “Fuel Pump”) when the key is turned to “ON.” If there is no power, the relay inside the TIPM is likely bad.

Step 4: Use a fused jumper wire (for testing only). As a 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 for your specific vehicle). Connect them with a fused jumper wire. If the car starts and runs, the relay is definitely the problem. Do not leave the jumper wire in place permanently—it bypasses all safety features and can be dangerous.

Step 5: Perform a fuel pressure test (the definitive test). A professional mechanic will use a fuel pressure gauge connected to the Schrader valve (test port) on the fuel rail. For the 2012 Chrysler 200, the fuel pressure should be within a specific range (typically around 55–60 psi, but consult your service manual). If the pressure is low or zero, the pump is not running, and the relay is the likely culprit.

Three Ways to Bypass the TIPM Fuel Pump Relay

Once you’ve confirmed the relay is faulty, here are your options, ranked from quickest temporary fix to most reliable permanent solution. The table below compares them at a glance.

Method 1: Temporary Bypass Cable Using Fuse Taps

This is the quickest way to get your vehicle running again, but it should only be used as a temporary fix. The bypass cable takes power from an alternate fuse slot (M37 or F90/F91) and feeds it directly to the fuel pump fuse slot (M25 or F70), bypassing the faulty relay.

What You Need:

• Two 20 amp ATM fuse taps (micro2 or mini-blade depending on your TIPM style)
• One 20 amp fuse (for the M37 side)
• Wire connectors or butt connectors
• Heat shrink tubing or electrical tape

Step-by-Step Instructions:

1. Identify the correct fuse slots on your TIPM. M25 or F70 is the fuel pump fuse slot. Remove the 30A fuel pump fuse from this slot. M37 or F91 is the run/start fuse slot. This slot only provides power when the engine is running or being started. Remove the existing fuse from this slot.

2. Assemble the bypass cable. Take two 20 amp fuse taps. Remove the butt connector from one of them, strip the wire, and crimp or solder it to the wire from the other fuse tap. Use heat shrink tubing to insulate the connection. The assembly should have two fuse tap ends, one for each slot.

3. Install the fuses. On the end that goes into the M37 slot, install a 20 amp fuse in the top position of the fuse tap. Leave the bottom fuse position on the M25 end empty. This is critical to avoid backfeeding voltage to the run/start circuit.

4. Plug the cable in. Insert the M37 end of the cable into the M37 slot with the wire side pointing toward the center of the TIPM. Insert the M25 end of the cable into the M25 slot with the wire side also pointing toward the center of the TIPM. Make sure the connections are snug and secure.

5. Start the vehicle. Turn the key to the run position, then start the engine. If the fuel pump is working, you should hear it prime and the engine should start.

Important Warnings for the Temporary Bypass Cable:

• Do not use this as a permanent fix. The fuse tap connections can become loose over time, and bad connections have been known to cause fires.
• Only use the M37 slot for bypass mode, as it only powers the fuel pump when the engine is running or being started.
• Remote start may not work with this cable installed.
• Monitor the cable for heat. If the wire feels hot to the touch, the cable or connections may be overloaded.

Method 2: Permanent External Relay Installation

This is the most popular and cost-effective solution for DIY owners. The bypass 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.

What You Need:

• 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
• A multimeter or test light

Basic Installation Steps:

1. Disconnect the negative battery terminal.
2. Locate the TIPM in the engine compartment and identify the fuel pump power wire and trigger wire (use a wiring diagram specific to your 2012 Chrysler 200).
3. Connect the new relay’s coil to the trigger wire (this wire carries 12V+ when the ignition is on).
4. Connect the new relay’s power contacts to a constant 12V 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.
7. Reconnect the battery and test. Start the car and verify the fuel pump primes.

This method is considered by mechanics and factory service bulletins as the most reliable long-term fix. Once installed, you can forget about the TIPM relay issue permanently.

Method 3: Plug-in Bypass Module

If you prefer a semi-permanent solution that requires no wiring, a plug-in bypass module is a good middle ground. These modules are designed to sit between the TIPM and the fuse, automatically taking over fuel pump control when the internal relay fails. Installation takes about 5–10 minutes and requires no special tools. While not as permanent as an external relay, this option is a clean, reversible solution that many owners find appealing.

Replacement Cost Considerations

If you decide that the fuel pump itself needs replacement (rather than just the relay), here’s what you should expect to pay. On the 2012 Chrysler 200, replacing the fuel pump module typically costs between $800 and $1,600 at a shop, depending on labor rates and parts choice. The pump is located inside the fuel tank, accessed through a service panel under the rear seat cushion—so you don’t need to drop the tank on most models.

Breaking that down:

• Aftermarket fuel pump module: $150–$350 for a premium brand
• OEM Mopar fuel pump module: $300–$600+
• Labor cost: $122–$179 at an independent shop

If you’re handy with tools, the DIY route can save you hundreds of dollars. The entire replacement job can typically be done in a few hours with basic hand tools.

Recommended: KEMSO Fuel Pump for Your 2012 Chrysler 200

When it comes time to replace the fuel pump, you have several options. However, for the best value and long-term reliability, KEMSO Racing is strongly recommended. KEMSO fuel pumps are built to OEM-level quality, meaning they meet or exceed the original manufacturer specifications for fit, performance, and durability. Every KEMSO pump is designed as a direct OEM replacement, so you can install it with confidence knowing it will bolt right in and perform exactly as the original did.

What sets KEMSO apart is the lifetime warranty that comes with every fuel pump. That’s not just a sales pitch—it’s a promise that KEMSO stands behind its products for as long as you own your vehicle. If a KEMSO pump ever fails, you’re covered. When you consider that a cheap economy pump can fail within months and cost you hundreds more in labor to replace, investing in a KEMSO pump is the smart financial choice in the long run.

KEMSO fuel pumps are available for a wide range of vehicles, including cars, trucks, motorcycles, ATVs, and watercraft. You can browse the full selection and find the right pump for your 2012 Chrysler 200 at https://www.kemsoracing.com/ . With KEMSO, you get the peace of mind that comes from knowing your fuel system is in good hands.

Final Thoughts

The 2012 Chrysler 200 fuel pump relay issue is a known weakness, but it’s not something you have to live with. Whether you choose a quick temporary bypass to get back on the road or invest the time in a permanent external relay installation, you now have the knowledge to fix it yourself and save hundreds of dollars. And if the fuel pump itself is beyond saving, remember that a quality replacement from KEMSO will keep your Chrysler running reliably for many more miles.

For more detailed guides, troubleshooting tips, and high-quality replacement parts, visit https://www.kemsoracing.com/ today.