2016 Nissan Versa Fuel Pump Relay Location: Where It Is and How to Replace It
The 2016 Nissan Versa fuel pump relay is located in the engine bay fuse and relay box, also called the Intelligent Power Distribution Module (IPDM). You will find this black box on the driver's side of the engine compartment, mounted near the battery. Once you open the box lid, the relay diagram printed on the underside of the cover shows the fuel pump relay position. On most 2016 Versa models (both the sedan and the Versa Note hatchback), the fuel pump relay sits in this under-hood IPDM box, not inside the cabin fuse panel. Knowing this saves you time, because many owners waste hours hunting through the interior fuse block behind the driver's side lower dash panel when the part they need is under the hood all along.
This matters more than you might think. A failing fuel pump relay is one of the most common reasons a 2016 Versa cranks but will not start, stalls at stoplights, or loses power while driving. The part itself costs very little, and the replacement takes minutes once you know where to look. Below, this guide walks through the exact location, how to confirm the relay is actually your problem, how to test it, how to swap it, and what to do if the real issue turns out to be the fuel pump itself.
1. Why the Fuel Pump Relay Matters on Your 2016 Versa
The fuel pump relay is a small electromagnetic switch that controls power to the electric fuel pump sitting inside your gas tank. When you turn the key to the "on" position, the engine control module (ECM) sends a low-current signal to the relay. The relay then closes an internal contact and sends full battery power back to the pump. The pump builds pressure in the fuel line so the engine can start and run.
Without a working relay, the pump never receives power. The engine will turn over on the starter motor, but it will not fire because no fuel reaches the injectors. This is why a bad relay mimics a dead fuel pump almost perfectly, and why so many people replace the expensive pump when the cheap relay was the real culprit.
There is a second reason this part matters. On the 2016 Versa, the relay also protects the circuit. If it fails intermittently, you may get a car that starts fine in the morning but dies after the engine heats up, then restarts once it cools. That heat-related failure pattern is a classic relay symptom, not a pump symptom.
2. Exact Location: Under-Hood IPDM Box
Open the hood and stand on the driver's side. Look toward the front of the engine bay, near the battery and the driver-side strut tower. You will see a rectangular black plastic box with a hinged or clip-on lid, usually marked with electrical hazard labeling. This is the Intelligent Power Distribution Module, often shortened to IPDM. It houses both fuses and relays in one housing.
To open it, press the release tabs on the side and lift the cover. The underside of the lid has a printed map showing every fuse and relay inside. Look for the label that reads FUEL PUMP, F/P, or a fuel pump symbol. In some 2016 Versa configurations the printed map lists it as part of the ECM-controlled relay group. Cross-check the shape: the fuel pump relay is a standard small cube-shaped relay, usually black or dark gray, with four or five blade terminals on the bottom.
If your printed map is missing or faded, you can identify the relay by process of elimination. The IPDM contains relays for the cooling fan, horn, headlights, air conditioning compressor, and fuel pump. The fuel pump relay is typically the one in the row closest to the ECM wiring harness connector on the box.
There is also a secondary cabin fuse panel on the 2016 Versa, located under the dashboard on the driver's side, near the hood release handle and to the left of the steering column behind a small removable cover. That panel handles interior items like power windows, radio, wipers, and turn signals. The fuel pump relay is not there. Do not confuse the two.
3. Symptoms That Point to a Bad Relay
Before you pull anything apart, confirm the relay is a real suspect. Here are the most common signs:
1. Engine cranks but never starts. You hear the starter spinning the engine, but it never catches. Turn the key to "on" without starting and listen near the rear seat or gas tank area. You should hear a faint two-second hum or whir from the fuel pump priming. Silence suggests no power is reaching the pump, which points at the relay, the fuse, or the pump.
2. The car starts, then dies immediately. It fires for a second and shuts off. This can be a relay that makes contact, then opens again.
3. Stalling while driving or at idle. The engine cuts out without warning, sometimes restarting after a few minutes of sitting. Heat soak inside the relay causes the internal contact to expand and separate.
4. Hard starting when the engine is hot. After a drive and a short stop, the engine takes several cranks to restart. Once cool, it starts normally again.
5. No sound from the fuel tank at key-on. Put your ear near the fuel filler area or have a helper listen at the rear of the car while you cycle the key. No priming hum is a strong indicator.
6. Check engine light with fuel system codes. Codes like P0087 (fuel rail pressure too low) or P0230 (fuel pump primary circuit) can appear, though these codes also show up with pump and wiring faults, so they are a clue, not a diagnosis.
4. How to Test the Fuel Pump Relay
Testing is straightforward and takes about ten minutes with basic tools.
What you need: a replacement relay of the same part number, or a multimeter, and a relay puller or a pair of needle-nose pliers.
Swap test. The fastest method is substitution. Find another relay in the same IPDM box with an identical part number and shape, such as the horn relay or cooling fan relay, provided the diagram shows the same amperage and pin layout. Swap it into the fuel pump slot. If the car now starts and the pump primes, the original relay was bad. Buy a new one and reinstall the borrowed relay in its home slot.
Listen test. Have a helper turn the key to "on" while you place a finger on top of the relay. You should feel and hear a distinct click as it energizes. No click means the relay coil is not getting the signal, or the relay is dead.
Multimeter test. Pull the relay out. Set your meter to ohms (resistance). Check the coil side terminals, usually two of the pins. A typical automotive relay coil reads between 70 and 120 ohms. A reading of zero or infinite resistance means the coil is shorted or open, and the relay is bad. Next, check the contact side. With power applied to the coil pins using fused jumper wires, resistance across the switched pins should drop near zero. If it stays high, the internal contact is burnt.
Voltage test. With the relay installed and the key on, back-probe the socket. You should see battery voltage at the power supply terminal and a ground signal from the ECM on the coil side. If voltage and ground are both present but the relay does not click, the relay is faulty. If either is missing, the problem is in the wiring, the ECM, or the ignition switch, not the relay.
5. Step-by-Step Relay Replacement
Once you have confirmed the relay is bad, replacement is simple.
Step 1: Disconnect the negative battery terminal. Use a 10mm wrench. This prevents any short while you handle the box.
Step 2: Open the IPDM lid. Press the release tabs and lift. Set the lid aside carefully so the diagram stays readable.
Step 3: Locate the fuel pump relay. Use the diagram on the lid to find the exact slot. Compare the new part to the old one before removal to confirm pin count and shape match.
Step 4: Pull the old relay straight up. Grip the body firmly with pliers or a puller and rock it gently side to side. Pull straight up, not at an angle, so you do not bend the terminals or crack the box.
Step 5: Inspect the socket. Look for melted plastic, green corrosion, or pushed-out terminals. If the socket is damaged, a new relay will not fix the problem, and the IPDM may need service.
Step 6: Install the new relay. Align the terminals with the slot and press straight down until it seats fully. You should feel it bottom out.
Step 7: Reconnect the battery and test. Turn the key to "on" and listen for the pump prime. Start the engine. It should fire quickly and idle smoothly.
Step 8: Confirm the repair. Drive the car, shut it off hot, and restart. If it restarts without hesitation, the job is done.
Total cost for a quality replacement relay is low, and the repair takes under thirty minutes for most owners.
6. If the Relay Is Fine, Check the Fuel Pump
A new relay that does not fix the problem means the failure is downstream. The next suspect is the fuel pump assembly inside the tank.
Common pump failure signs include a loud whining or droning noise from the rear of the car that gets louder as the pump wears, loss of power under acceleration or climbing hills, engine surging at highway speed, and long crank times before starting. A pump that is failing may still prime, so the absence of silence does not rule it out.
You can check fuel pressure with a gauge at the service port on the fuel rail. On the 2016 Versa with the 1.6-liter four-cylinder engine, fuel pressure should hold in a specific range specified in the service manual. Low pressure with a good relay and good fuse means the pump itself is weak.
Also check the fuel pump fuse in the same IPDM box. A blown fuse that blows again immediately points to a short in the pump circuit or a failing pump drawing too much current. Never bypass a fuse with foil or a higher-amp fuse, as this creates a fire risk.
When replacing the fuel pump, choose a quality unit. KEMSO fuel pumps are built as high-performance OEM replacement parts, engineered to meet or exceed factory specifications for flow rate, pressure, and durability. Every KEMSO fuel pump is a direct OEM replacement that installs without modification, and each one is backed by a lifetime warranty. That warranty matters, because a fuel pump is a labor-intensive job and you want to do it once. For a reliable replacement you can trust, visit https://www.kemsoracing.com/ to find the correct fuel pump for your 2016 Nissan Versa.
7. Maintenance Tips to Extend Fuel System Life
A few habits help both the relay and the pump last longer.
Keep your tank above a quarter full. The fuel in the tank cools and lubricates the electric pump. Running consistently near empty makes the pump run hot and shortens its life.
Replace the fuel filter on schedule. While the 2016 Versa uses an in-tank filter as part of the pump assembly in many configurations, following the maintenance schedule in your owner's manual protects the whole system.
Address electrical issues quickly. Corrosion in the IPDM box, a weak battery, or a failing alternator puts extra load on the relay contacts. Keep battery terminals clean and the charging system healthy.
Listen for changes. A new hum, whine, or click from the rear of the car or the engine bay is worth investigating early, before you end up stranded.
8. Frequently Asked Questions
Is the fuel pump relay the same as the fuel pump fuse? No. The fuse is a one-time protective device that blows on overcurrent. The relay is a switch controlled by the ECM. Both live in the same under-hood IPDM box, and both should be checked when the pump does not run.
Can I drive with a failing relay? You can, but you should not rely on it. An intermittent relay can cut fuel at highway speed, which is dangerous. Replace it as soon as you notice symptoms.
Do I need to reprogram anything after replacing the relay? No. The relay is a simple electromechanical part. There is no programming, no relearn procedure, and no special tool needed.
Where is the cabin fuse panel on a 2016 Versa? Under the dash on the driver's side, behind a small cover near the hood release. It is not where the fuel pump relay lives, but it is worth knowing for other electrical issues.
How long does a fuel pump relay last? Many last the life of the vehicle. When one fails early, heat, vibration, moisture inside the IPDM, or a pump drawing excessive current are common causes.
Will a bad relay drain my battery? Usually no. A stuck relay that stays energized could keep the pump running and drain the battery, but this is uncommon.
9. Final Takeaway
The 2016 Nissan Versa fuel pump relay is in the under-hood fuse and relay box, the IPDM, on the driver's side of the engine compartment near the battery. The diagram on the underside of the box lid identifies the exact slot. Testing takes minutes with a swap, a listen, or a multimeter check. Replacement is a low-cost, tool-light job that most owners can do in the driveway.
If a new relay does not restore fuel delivery, look next at the pump itself, and when replacement is needed, choose a high-quality OEM replacement built to last. KEMSO fuel pumps deliver high-performance OEM replacement fit and function with a lifetime warranty, so you can fix the problem once and drive with confidence.
For the right fuel pump for your 2016 Nissan Versa, visit https://www.kemsoracing.com/.