2006 PT Cruiser Fuel Pump Relay: Location, Symptoms, and Replacement Guide

If your 2006 Chrysler PT Cruiser cranks but will not start, the fuel pump relay is one of the first components you should check. This small electrical switch controls power delivery to the fuel pump, and when it fails, your engine gets no fuel and will not run. The relay is located inside the Totally Integrated Power Module (TIPM) under the hood, near the battery on the driver's side, and replacing it is a straightforward job that you can do yourself with basic hand tools and about fifteen minutes of your time. This guide walks you through everything you need to know about the fuel pump relay on the 2006 PT Cruiser, including where to find it, how to test it, and how to replace it.

Understanding the Fuel Pump Relay's Role

The fuel pump relay acts as a remote switch that controls the flow of battery voltage to the fuel pump. When you turn the ignition key to the ON position, the Powertrain Control Module (PCM) energizes the relay coil, which closes the internal contacts and sends battery power to the fuel pump . The PCM relies on three inputs—ignition voltage, crankshaft position sensor, and camshaft position sensor—to operate the relay correctly . If any of these signals are missing, the relay will not activate and the fuel pump will remain silent.

The relay itself is a small, rectangular black or gray module with four or five metal terminals that plug into a socket inside the fuse box. It is designed to handle the high current required by the fuel pump while being controlled by a low-current signal from the PCM. This design keeps heavy wiring away from the dashboard and allows the computer to manage fuel delivery automatically.

On the 2006 model year, the entire power distribution system is consolidated into the TIPM, which replaces the older Power Distribution Center found on earlier PT Cruisers . This integrated module contains both cartridge fuses and mini fuses from 2006 to 2010, along with multiple relays . The TIPM cover has a diagram stamped on the inside that shows the location and function of every fuse and relay inside .

Where to Find the Fuel Pump Relay in a 2006 PT Cruiser

The fuel pump relay sits inside the TIPM, which is located in the engine compartment near the air cleaner assembly . To access it, follow these steps:

1. Open the hood and secure it with the prop rod.
2. Locate the TIPM on the driver's side, near the battery. It is a black plastic box with a removable cover.
3. Unlock the cover by pressing the release tabs or removing the screws, depending on the exact design .
4. Lift the cover and look at the diagram printed on the underside. This diagram identifies each relay and fuse by number and function .
5. Find the relay labeled "Fuel Pump" or the one that matches the TIPM diagram for the fuel pump circuit. The exact labeling may vary slightly, but the relay is generally identified in the diagram as "Fuel Pump" or "FP" .

The relay is usually positioned near the center of the TIPM, but it is essential to rely on the cover diagram rather than guess, since the layout can vary slightly between trim levels and production dates . If you do not have the owner's manual, the cover diagram provides the most reliable reference .

While you are inside the TIPM, also check the fuel pump fuse. The fuel pump circuit is protected by a 15-amp mini fuse identified in the TIPM fuse map . A blown fuse will prevent power from reaching the pump even if the relay is working, so confirm both components are in good condition.

Symptoms of a Failing Fuel Pump Relay

A faulty fuel pump relay usually causes one or more of the following problems:

1. The engine cranks but will not start. When you turn the key, the starter motor engages and spins the engine, but the fuel pump never activates. Since there is no fuel pressure, the engine never fires .
2. No fuel pump priming sound. If you listen closely when turning the ignition to the ON position (without cranking), you should hear a short whirring or buzzing sound from the rear of the vehicle. This is the fuel pump pressurizing the system. If you hear nothing, the relay could be the culprit .
3. Intermittent starting or stalling. A failing relay may work when it is cold but fail as it heats up from electrical resistance. The car may start fine one day and refuse to start the next, or stall during driving and refuse to restart .
4. The engine loses power under load. Occasionally, a degrading relay will cause the fuel pump to lose voltage intermittently, leading to sputtering or hesitation during acceleration .

It is important to remember that these symptoms can also come from a kicked-in fuel pump fuse, a failing fuel pump, or wiring harness damage. The relay should always be tested before replacing the fuel pump, since the relay is less expensive and easier to reach . Replacing a pump when the actual issue is a relay can be a costly mistake, so perform proper diagnosis first.

How to Test the Fuel Pump Relay

Before buying a new relay, you can run several simple checks that require very few tools. These tests help you confirm whether the relay is the actual cause of the problem or if you need to look elsewhere.

1. Click test. With the ignition turned OFF, locate the relay in the TIPM. Ask a helper to turn the ignition to the ON position while you place your finger on the relay. You should hear and feel a distinct click as the relay energizes. If the relay clicks, it is receiving the trigger signal from the PCM. If it does not click, either the relay is dead, or the PCM is not sending the signal .

2. Relay swap test. Most TIPMs contain several relays that are identical in construction. Find another relay with the same part number, such as the horn relay, remove it, and swap it into the fuel pump position. Then turn the ignition to the ON position. If you now hear the fuel pump prime, the original relay is faulty .

3. Continuity test (multimeter). Set your digital multimeter to the ohms setting. Remove the relay from the socket and test the coil terminals (usually pins 85 and 86). You should see a reading between 50 and 100 ohms. If the reading is infinite or less than 10 ohms, the coil is burned out and the relay must be replaced. For this level of testing, refer to the exact pin configuration shown on the relay body .

4. Fuse inspection. Visually inspect the 15-amp fuel pump fuse in the TIPM. A blown fuse will have a visible break in the metal filament inside the transparent fuse body, or a darkened, discolored appearance. Replace the fuse with a fuse of the identical amperage rating. Never use a higher amp fuse, as this can damage the wiring and create a fire hazard .

If all tests point to a working relay and fuse, you may have a deeper issue, such as a dead fuel pump or a wiring fault. In that case, you will need to test voltage at the fuel pump connector and check the pump's resistance and ground integrity by following the troubleshooting steps common to first-gen PT Cruisers .

How to Replace the Fuel Pump Relay

Replacing the relay is a simple operation that should take you under 15 minutes if you have the right attitude and a basic tool kit. Here is the complete process:

1. Turn the ignition to OFF and remove the key from the ignition. Disconnect the negative battery cable and wait 60 seconds for all capacitors in the system to discharge .
2. Open the hood and remove the TIPM cover as described above. Keep the cover somewhere safe where you will not lose the screws or clips.
3. Identify the fuel pump relay using the underside diagram . Make sure you are looking at the correct relay before you pull anything out.
4. Grasp the relay firmly and pull it straight up out of its socket. Do not angle it or rock it, which could bend the terminals inside the socket. The relay will pull out with moderate resistance .
5. Inspect the socket for dirt, corrosion, or water. If you see any contamination, spray the socket with an electrical contact cleaner and allow it to dry completely before inserting the new relay .
6. Align the new relay with the socket and push it straight down until it clicks firmly into position .
7. Reinstall the TIPM cover, reconnect the battery, and turn the ignition to the ON position. Listen for the fuel pump prime, then attempt starting the engine .
8. If the engine now starts and runs smoothly, the replacement has solved the problem. If not, move on to further diagnostics, such as testing the fuel pump relay control signal from the PCM as described in the service manual .

2006 PT Cruiser Fuel Pump Relay: What Makes the 2006 Design Different

Every model year of the PT Cruiser uses a relay for the fuel pump, but the 2006 model is part of a significant electrical system redesign. From 2001 to 2005, the car used what Chrysler called the Power Distribution Center (PDC), while 2006 through 2010 use the Integrated Power Module (IPM) . This second-generation fuse box centralizes far more circuits, including the ignition run, radiator fan high-speed, and the fuel pump relay. A clip or even a slightly bent terminal in the TIPM is generally not repairable, so diagnosis and correct replacement are even more critical .

Furthermore, the 2006 PT Cruiser is the first year of the same fuse and relay house layout for most mini-fuses up to 40-amp ratings, including the 15-amp fuel pump mini-fuse . If you are used to working on older cars with separate fuse boxes and relays, the TIPM approach may feel new, but the replacement job still is very manageable.

Frequently Asked Questions About the 2006 PT Cruiser Fuel Pump Relay

Can I bypass the fuel pump relay? You can bypass the relay temporarily to test the pump by bridging the socket contacts, but you should not drive the vehicle with a bypassed relay, as this circuit is properly fused and controlled for good reason. Use this only as a quick test for another component while parked.

Is the fuel pump relay the same as the ASD relay?
No. The Auto ShutDown (ASD) relay controls power to the ignition coils and fuel injectors, not the fuel pump itself . On the 2006 model, the ASD relay is a separate relay in the TIPM. If the pump relay is fine but you still have no fuel, you should check the ASD circuit as well.

Will I need to remove anything besides the TIPM cover to access this relay?
On a standard PT Cruiser, no. The TIPM screws are the only thing holding the cover. On a convertible model, the power top module occupies one of the fuse slots, but that slot is not the fuel pump relay position, so you do not need to disconnect the top module for this job .

What tools do I need for this replacement?
You need a 10mm socket or a flathead screwdriver to release the battery terminal, plus a pair of needle-nose pliers or a fuse puller to remove the relay if it is stuck. Most of the time you can pull it out with your fingers.

What can cause a relay to fail over and over? If you replace the relay and the new one fails within a few months, the underlying cause is usually excess current draw from a failing fuel pump. A pump drawing more than its designed amperage will overload the relay contacts until they burn out. In that case you should replace the fuel pump, not just the relay.

Other Fuses and Relays Worth Knowing About

While you are working in the TIPM, it is helpful to understand what else lives in there. The 2006–2010 PT Cruiser power module holds several dozen fuses and relays, many of which are relevant to fuel and engine control:

• IP Fuseblock (#10): 40-amp fuse that feeds the interior fuse panel under the dash .
• Main Relay (ASD): 40-amp; controls the auto shutdown system .
• Ignition Run: 40-amp; feeds the ignition switch circuits .
• Radiator Fan (High Speed): 50-amp or 40-amp depending on the source, but relevant if the same TIPM is where both exist.
• Power Outlets: 20-amp; protects both front and rear power outlets .
• Horn Relay: 15-amp; often used as a test donor for the fuel pump relay since it is a common relay style .

Matching the exact circuit to your trim with the fuse legend inside the TIPM cover is important, because convertible, turbo, and export versions have different fuses like the power top or fog lamps .

The Bottom Line on the 2006 PT Cruiser Fuel Pump Relay

When your 2006 PT Cruiser cranks but will not start, the fastest route to a diagnosis starts with the cheap parts than can kill the engine before you touch the expensive fuel pump. The fuel pump relay is the best starting point: it is easy to access, straightforward to test, and costs far less than a new pump. A12-volt test light or a simple relay swap takes no more than a couple of minutes, and a 20-amp relay from any auto parts store will often bring the car back to life . If the relay tests fine and the fuse is intact, then you can shift focus to pressure testing the fuel rail and testing the pump itself .

Recommended Product: KEMSO Fuel Pump

Once you have confirmed that your fuel pump is the part that actually needs replacement, the smart choice is a KEMSO Fuel Pump. KEMSO builds each unit with performance and reliability in mind, intended as an OEM Replacement with precise fitments for drivers who expect to get back to the street without guesswork. Most KEMSO pumps also carry a Lifetime Warranty, so you buy a part that is designed to last for the lifetime of your car. When you want a new fuel pump for your 2006 PT Cruiser, take a moment to browse the best sellers at KEMSO Racing to find your exact model fit and get rolling again with confidence.

If you need a 2006 PT Cruiser fuel pump the easy route, absolutely check the KEMSO Racing website for fitment information and valuable top-rated products many owners trust for long-term repairs.