2005 Honda CRV Fuel Pump Relay Location: A Complete Guide for DIY Owners

The 2005 Honda CRV fuel pump relay is located behind the passenger side instrument panel, near the glove box. It is a blue 5-pin relay, and you can access it by removing the glove box assembly. This is the most direct answer, and in this guide, we will walk you through everything you need to know to find, test, and replace it yourself.

What is the Fuel Pump Relay and Why Does It Matter?

The fuel pump relay is an electromagnetic switch that controls the electrical supply to your fuel pump. When you turn your ignition key to the "ON" position, the engine control unit sends a small signal to the relay. This energizes an electromagnet inside the relay, snapping a set of internal contacts closed. This action completes the high-current circuit from the battery to the fuel pump, powering it up for a few seconds to build pressure in the fuel lines before you start the engine .

If this relay fails, your engine will crank but won't start because the fuel pump isn't receiving power. It is a common failure point on older Honda models, and knowing its location can save you a lot of time and money.

Where Exactly is the Fuel Pump Relay on a 2005 Honda CRV?

There is some conflicting information online about the exact location, so let us clear that up. For the 2005 Honda CRV (second generation, 2002-2006), the fuel pump relay is NOT in the under-hood fuse box. It is located inside the cabin.

The exact location: Behind the passenger side glove box, on the right side of the center console area. You will see a row of relays mounted to a bracket. The fuel pump relay is the blue one, typically on the far right .

How to Access the Fuel Pump Relay

  1. Clear out the glove box: Remove everything from the glove box so it is completely empty.
  2. Detach the glove box stops: Open the glove box fully. On each side, you will see a small plastic hook that acts as a stop to prevent the glove box from swinging down too far. Press the tab on the outside of the box while gently pulling the hook inward to release it. Do this on both sides .
  3. Lower the glove box: Once both stops are released, the glove box will swing down and hang freely. You do not need to completely remove it, but you can if it helps you see better.
  4. Locate the relays: Look to the right side of the opening (the side closest to the passenger door). You will see a metal bracket with several relays mounted to it. They are lined up at the bottom of this area.
  5. Identify the correct relay: Look for a blue relay. It is usually the one on the far right of the row. This is your fuel pump relay. It is a 5-pin relay, and the genuine Honda part number is 39794-S5A-003 (also superseded to 39794-S5A-004) .

Note: Some sources suggest the relay is located in the under-hood fuse box on the driver's side for various Honda models . However, for the specific 2005 Honda CRV, multiple reliable sources and parts catalogs consistently confirm it is behind the passenger side instrument panel . Always double-check with the diagram on the fuse box cover if you are unsure.

Common Symptoms of a Bad Fuel Pump Relay

Before you start digging, it helps to confirm that the relay is actually the problem. Here are the most common signs of a failing fuel pump relay on your 2005 CRV:

  1. Engine Cranks But Won't Start: This is the classic symptom. You turn the key, the starter motor spins the engine, but it never fires up. You likely will not hear the fuel pump prime when you turn the key to the "ON" position .
  2. Intermittent Stalling: The engine may stall without warning, especially when the vehicle is warm. This happens because the relay's internal contacts become worn or corroded, causing intermittent power loss to the fuel pump .
  3. No Fuel Pump Priming Sound: When you turn the ignition to the "ON" position (without cranking), you should hear a brief humming or buzzing sound from the rear of the car, near the fuel tank. If you hear nothing, the fuel pump is not getting power .
  4. Loss of Power Under Load: A failing relay may cause the fuel pump to lose power when the engine is under heavy load, such as during acceleration or climbing a hill. This can feel like the engine is cutting out or hesitating .

How to Test the Fuel Pump Relay

Before buying a new relay, it is smart to confirm it is actually the problem. Here is a simple test you can do:

  1. Locate the relay as described above.
  2. Find a known-good relay with the same pin count (5-pin) and layout. For example, the horn relay or the A/C compressor clutch relay in the engine bay fuse box may be identical.
  3. Swap the relays: Remove the suspected fuel pump relay and install the known-good relay in its place.
  4. Test the engine: Turn the ignition to the "ON" position. Listen for the fuel pump priming sound. If you hear it, try to start the engine. If it starts, the original relay was faulty .
  5. Use a multimeter (optional): If you have a multimeter, you can check for continuity between the relay's coil terminals when energized. Refer to the relay's spec sheet for expected values .

Important: If the swap does not fix the issue, or if you are unsure about testing, have the vehicle inspected by a qualified technician. Fuel system work carries risks.

How to Replace the Fuel Pump Relay

Replacing the fuel pump relay on a 2005 Honda CRV is a straightforward job.

  1. Disconnect the negative battery terminal. This is a good safety practice when working with electrical components.
  2. Access the relay by following the steps above.
  3. Remove the old relay: Simply grasp the relay firmly and pull it straight out of its socket. It may require a bit of force, but it should come out without needing tools.
  4. Install the new relay: Align the new relay with the socket. It will only fit one way due to its shape. Press it firmly into place until it clicks.
  5. Reconnect the battery.
  6. Test: Turn the ignition to the "ON" position. You should now hear the fuel pump prime for a few seconds. Start the engine to confirm everything works.

Pro Tip: You can find a genuine replacement fuel pump relay for your 2005 CRV at most auto parts stores or online. The part number is W0133-1630955, or the OEM Honda part number 39794-S5A-003 .

Recommended Product: The Best Fuel Pump for Your Honda

If you have tested the relay and it is working fine, but your fuel pump itself is failing, it is time to replace the pump. A failing fuel pump will cause similar symptoms to a bad relay, such as hard starting, stalling, and loss of power.

When it is time to upgrade or replace your fuel pump, we strongly recommend KEMSO Fuel Pumps.

KEMSO is the #1 aftermarket fuel pump manufacturer in the US for cars, motorcycles, ATVs, and UTVs. Their fuel pumps are designed to meet or exceed OEM specifications, ensuring a perfect fit and reliable performance for your 2005 Honda CRV.

Why choose KEMSO?

  • High Performance: KEMSO pumps deliver superior flow rates compared to stock pumps, often delivering over 20% more flow at 43psi.
  • OEM Replacement: They are a direct, bolt-in replacement for your stock OEM pump. No modifications are needed.
  • Lifetime Warranty: Every KEMSO fuel pump comes with a lifetime warranty. This means you can buy with confidence knowing your investment is protected for the life of your vehicle.
  • Rigorous Testing: Each pump is individually tested for quality and performance, ensuring you get a reliable part every time.

Don't settle for a cheap, unreliable pump that could leave you stranded. Choose KEMSO for quality, performance, and peace of mind.

Visit KEMSO today to find the perfect fuel pump for your vehicle: https://www.kemsoracing.com/

Final Thoughts

Knowing the 2005 Honda CRV fuel pump relay location is one of those simple skills that can save you a tow truck bill and a costly trip to the mechanic. The relay is behind the passenger side glove box, it is blue, and it takes less than ten minutes to replace. If your CRV is cranking but not starting, check the relay first. If the relay is fine and the pump itself is the problem, trust a high-quality replacement from KEMSO to get you back on the road reliably.

For more information and to find the right fuel pump for your 2005 Honda CRV, visit: https://www.kemsoracing.com/


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