2001 Toyota Camry Fuel Pump Relay: Your Complete Guide to Location, Testing, and Replacement

If your 2001 Toyota Camry cranks but won’t start, or if it stalls unexpectedly while driving, the fuel pump relay is a likely culprit. This small but critical component controls power to the fuel pump, and when it fails, your engine won’t get the fuel it needs. The good news is that diagnosing and replacing the fuel pump relay on a 2001 Camry is straightforward, and you can often do it yourself without special tools. Here’s everything you need to know.

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

The fuel pump relay is an electrical switch that sends power to the fuel pump when you turn the ignition key. On a 2001 Toyota Camry, the relay is part of the fuel pump circuit. When the relay fails, the pump won’t run, and your engine won’t start. This is one of the most common causes of a no-start condition on this vehicle. The relay is designed to last for many years, but heat, vibration, and electrical wear can eventually cause it to fail.

Where Is the 2001 Toyota Camry Fuel Pump Relay Located?

The fuel pump relay on a 2001 Toyota Camry is located in the engine compartment fuse and relay box. This box is mounted on the left inner fender, near the driver’s side. Open the fuse box cover, and look for a relay labeled “Circuit Opening Relay” or “EFI Main Relay.” The exact position may vary slightly depending on your Camry’s trim level, but it’s typically a small, rectangular relay with four terminals. Some sources also refer to this relay as the “fuel pump relay” or “EFI relay.”

Tip: If you have trouble locating it, check your owner’s manual. The fuse box diagram inside the cover will show you the exact location.

How to Test the Fuel Pump Relay

Testing the relay is simple and requires only a multimeter or a test light. Follow these steps:

  1. Locate the relay in the engine compartment fuse box. Remove it carefully.
  2. Check for power at the relay socket. Turn the ignition to the ON position (do not start the engine). Use a test light or multimeter to check for battery voltage on one of the relay socket terminals. You should see voltage.
  3. Test the relay itself. Use a multimeter to check continuity between the two control terminals (usually terminals 85 and 86). You should see continuity. Then, check between the two power terminals (terminals 30 and 87). There should be no continuity until you apply power.
  4. Apply 12V to the control terminals. Connect a 12V power source (like a battery) to terminals 85 and 86. You should hear a click, and now terminals 30 and 87 should show continuity.
  5. Swap the relay. If you’re unsure, swap the fuel pump relay with a known-good relay of the same type (like the horn relay or a similar relay in the same box). If the car starts, the original relay was faulty.

Important: If the relay tests good but the pump still doesn’t run, the problem could be a bad fuel pump, a blown fuse, or a wiring issue. The fuel pump fuse is also in the engine compartment fuse box.

Common Symptoms of a Bad Fuel Pump Relay

A failing fuel pump relay can cause several symptoms. Watch for these:

  • Engine cranks but won’t start. This is the most common symptom. The starter turns the engine over, but it never fires up because the fuel pump isn’t getting power.
  • No fuel pump noise. When you turn the key to the ON position, you should hear a brief buzzing sound from the fuel tank (the pump priming). If you don’t hear it, the relay or pump may be bad.
  • Engine stalls while driving. The relay may fail intermittently, causing the fuel pump to shut off while the engine is running. This can be dangerous.
  • Check Engine Light comes on. The PCM may set a diagnostic trouble code like P1233 (Fuel Pump Driver Module Disabled or Off Line), which can indicate a relay or wiring issue.
  • No power to the fuel pump. If you test the fuel pump connector and find no voltage, the relay is a likely suspect.

How to Replace the Fuel Pump Relay on a 2001 Camry

Replacing the relay is one of the easiest repairs you can do. Here’s how:

  1. Turn off the engine and remove the key from the ignition.
  2. Open the engine compartment fuse box by pressing the tabs on the sides.
  3. Locate the fuel pump relay (Circuit Opening Relay or EFI relay). Use the diagram on the fuse box cover.
  4. Pull the old relay straight out. It’s held in by friction, so a firm tug should release it.
  5. Install the new relay by pushing it firmly into the same socket. Make sure it’s fully seated.
  6. Close the fuse box cover and test the system. Turn the key to the ON position and listen for the fuel pump to prime. Then start the engine.

Cost: A replacement fuel pump relay for a 2001 Camry typically costs between $10 and $30 at an auto parts store. The part number is often 20382 or equivalent.

Other Causes of Fuel System Problems

If replacing the relay doesn’t fix the issue, consider these other possibilities:

  • Blown fuel pump fuse. Check the fuse box for a blown fuse. Replace it with the same amperage rating.
  • Bad fuel pump. If the pump itself has failed, it won’t run even with power. Testing the pump requires a fuel pressure gauge.
  • Faulty wiring or connectors. Corrosion or loose connections at the relay socket or fuel pump can cause intermittent problems.
  • Bad EFI Main Relay. Some Camrys use a separate EFI main relay that controls the fuel pump relay. This relay is also in the engine compartment fuse box.
  • Inertia fuel shutoff switch. Some vehicles have a switch that cuts power to the fuel pump in a collision. If it’s tripped, reset it. On the 2001 Camry, this is less common, but it’s worth checking.

Should You Buy a New Fuel Pump Instead?

If you’ve ruled out the relay and fuse, and the fuel pump itself is failing, you’ll need a replacement. The pump is located inside the fuel tank, which makes replacement more involved. You’ll need to drop the tank or access the pump through an access panel under the rear seat. This is a job that can take a few hours for a DIY mechanic.

Important: When replacing the fuel pump, it’s a good idea to replace the fuel filter at the same time. A clogged filter can strain the new pump and cause premature failure.

Upgrade Your Fuel System with KEMSO

If you need a new fuel pump, consider upgrading to a high-performance, OEM replacement unit from KEMSO. KEMSO fuel pumps are designed to deliver reliable, consistent fuel flow, and they are a direct fit for your 2001 Toyota Camry. Unlike some aftermarket pumps, KEMSO units are built to exceed OEM specifications, meaning they provide better fuel flow and longer service life. Each KEMSO fuel pump is backed by a lifetime warranty, so you can install it with confidence.

KEMSO pumps are manufactured with high-quality materials and are rigorously tested to ensure they meet strict performance standards. Whether you’re replacing a worn-out pump or upgrading for better reliability, KEMSO offers a practical and affordable solution. The pump is designed for easy installation, comes with all necessary fittings, and is compatible with both gasoline and ethanol-blended fuels. Plus, KEMSO provides USA-based technical support to help you with any questions.

To get the best fuel pump for your 2001 Toyota Camry, visit the KEMSO website at: https://www.kemsoracing.com/

DIY vs. Professional Repair

Replacing the fuel pump relay is a beginner-level DIY job. Most people can do it in under 10 minutes with no special tools. Replacing the fuel pump itself is more advanced and requires some mechanical skill, but it’s still doable for a moderately experienced DIYer. If you’re not comfortable working on your car, or if you suspect the problem is in the wiring or PCM, take it to a qualified mechanic.

Final Thoughts

The fuel pump relay on your 2001 Toyota Camry is a small, inexpensive part that can cause big problems when it fails. Knowing where it is and how to test it can save you time and money. If the relay is bad, a quick replacement will get your car running again. If the pump itself is the issue, consider upgrading to a KEMSO fuel pump for reliable, long-lasting performance. Visit https://www.kemsoracing.com/ to explore their full selection of fuel pumps and find the right fit for your Camry.


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