1999 Honda CRV Fuel Pump Relay: Location, Symptoms, and How to Replace It

If your 1999 Honda CR-V cranks but won't start, or starts and then stalls unexpectedly, the fuel pump relay is often the culprit. This small but critical component controls power to the fuel pump, and when it fails, the engine gets no fuel. The fuel pump relay on a 1999 Honda CR-V is located inside the under-dash fuse box on the driver's side, near the kick panel. In many cases, you can fix the issue yourself by replacing the relay or even resoldering its cracked connections. Below, we break down everything you need to know about the 1999 CR-V fuel pump relay, from symptoms to testing to replacement.

What Does the Fuel Pump Relay Do?

The fuel pump relay is an electrical switch that controls power to the fuel pump. When you turn the ignition key to the "ON" position, the engine control unit (ECU) activates the relay, which then sends power to the fuel pump inside the gas tank. The pump runs for a couple of seconds to prime the fuel system, then shuts off until the engine starts. The relay also keeps the pump running while the engine is operating. If the relay fails, the pump won't receive power, and the engine won't start or will stall .

Common Symptoms of a Bad Fuel Pump Relay

A failing fuel pump relay in a 1999 Honda CR-V usually shows these signs:

  1. Engine cranks but won't start. This is the most common symptom. You turn the key, the starter motor spins the engine, but it never fires up because no fuel reaches the injectors.
  2. Engine starts then stalls. The relay may work intermittently, allowing the engine to start but then cutting power to the pump, causing an immediate stall.
  3. No fuel pump priming sound. When you turn the key to "ON" (without starting), you should hear a faint whirring sound from the rear of the vehicle for 1-2 seconds. If you hear nothing, the relay or pump may be dead.
  4. Engine stalls while driving. If the relay fails while you're on the road, the engine will suddenly lose power and die. This is dangerous and should be addressed immediately.
  5. Intermittent no-start conditions. The car may start fine one day and refuse to start the next, only to run again later. This points to a relay with cracked solder joints.

1999 Honda CR-V Fuel Pump Relay Location

The fuel pump relay on a 1999 Honda CR-V is located in the under-dash fuse box on the driver's side. Here is how to find it:

  1. Get into the driver's seat and look under the dashboard, to the left of the steering column, above the hood release lever. You will see a plastic cover.
  2. Gently pry off the cover using a trim tool or flathead screwdriver. It usually has a tab or clip.
  3. Behind the cover is the fuse box with multiple fuses and relays. The fuel pump relay is normally a small, rectangular component. Check the diagram on the fuse box cover or inside the box—look for a label like "FUEL PUMP" or "FP" .
  4. If you cannot find it under the dash, some sources also mention the main relay (PGM-FI main relay) for 1997-2000 CR-Vs is located on the passenger's side behind the glove box . This main relay actually contains two relays inside: one for the fuel injectors and one for the fuel pump. So if you find a relay behind the glove box, that is the one you need.

How to Test the Fuel Pump Relay

Before buying a new relay, you can test it to confirm it's faulty. Try these methods:

Method 1: Listen for the pump
Turn the ignition key to "ON" (do not start). Listen near the rear of the vehicle or at the fuel filler cap. If you hear a brief whirring sound, the relay is likely working. If you hear nothing, proceed to the next step.

Method 2: Swap with a known-good relay
Find an identical relay in the fuse box (e.g., the horn relay or a similar 4-pin or 5-pin relay). Swap them temporarily. If the car starts after swapping, the original relay is bad .

Method 3: Use a multimeter
Remove the relay. Set your multimeter to continuity or resistance. Apply 12V power to the relay's coil terminals (usually pins 85 and 86). You should hear a click and see continuity between the switched terminals (pins 87 and 30). If no click or no continuity, the relay is defective.

How to Replace the Fuel Pump Relay on a 1999 Honda CR-V

Replacing the relay is straightforward and requires no special tools.

  1. Disconnect the battery. Always disconnect the negative battery terminal before working on electrical components to avoid shorts or shocks.
  2. Access the relay. Remove the under-dash fuse box cover as described above. If you are accessing the main relay behind the glove box, remove the glove box by pulling the stops and unscrewing the bolts .
  3. Remove the old relay. The relay simply pulls straight out of its socket. Do not tug on the wires; just pull the relay body.
  4. Install the new relay. Push the new relay firmly into the same socket. It should click into place.
  5. Reconnect the battery and test. Turn the key to "ON" and listen for the fuel pump priming sound. If you hear it, try starting the engine.

What Causes the Fuel Pump Relay to Fail?

The most common cause of failure is cracked solder joints inside the relay. Over time, the heat and vibration from the engine can cause the solder connections on the relay's circuit board to develop microscopic cracks. These cracks interrupt the electrical path, causing intermittent or complete failure. You can sometimes repair a relay by resoldering the cracked joints . However, replacement is often easier and more reliable.

Other Possible Causes of a No-Start Condition

If the relay is good but the car still won't start, check these components:

  • Fuel pump fuse. The 1999 CR-V has a 15A fuel pump fuse in the interior fuse box (fuse No. 13) . If this fuse is blown, the pump won't get power.
  • Fuel pump itself. The pump is inside the fuel tank. If it has failed, you will not hear the priming sound even with a good relay.
  • Clogged fuel filter. A severely clogged filter can cause the pump to work harder and blow the fuse .
  • Impact sensor (inertia switch). Some vehicles have a switch that cuts power to the pump in a crash. If it has been triggered, the pump will not run.
  • Wiring issues. Damaged or corroded wiring between the relay and the pump can interrupt power.

How to Prevent Fuel Pump Relay Issues

  • Replace the relay proactively. If your CR-V is over 20 years old, consider replacing the relay as preventive maintenance. It is an inexpensive part.
  • Keep the interior dry. Moisture under the dash can accelerate corrosion on relay terminals.
  • Use quality parts. Cheap aftermarket relays may fail sooner. Stick with reputable brands or OEM replacements.

Recommended Fuel Pump for Your Honda CR-V

If you need to replace the fuel pump itself, we strongly recommend KEMSO Fuel Pumps. KEMSO offers high-performance, direct-fit OEM replacement fuel pumps for Honda CR-V models. Their pumps are designed to match or exceed original equipment specifications, ensuring reliable fuel delivery and easy installation. Plus, every KEMSO fuel pump comes with a lifetime warranty, giving you peace of mind on the road.

Visit https://www.kemsoracing.com/ to browse their complete selection of Honda fuel pumps and find the right part for your 1999 CR-V.

Final Thoughts

The fuel pump relay on a 1999 Honda CR-V is a simple but vital component. When it fails, the car won't start or will stall unexpectedly. The relay is located under the driver's side dash or behind the glove box, and replacing it is a DIY job you can do in minutes. If you are also experiencing weak fuel pressure or a failing pump, consider upgrading to a KEMSO fuel pump for reliable performance backed by a lifetime warranty. For more information and to order your parts, visit https://www.kemsoracing.com/ today.


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