2018 Toyota RAV4 Fuse Box Diagram & Amperage

Quick Answer

The 2018 Toyota RAV4 features three primary fuse box locations: one under the hood, a second in the dashboard kick panel on the driver's side, and a third in the cargo area/trunk.

Under-Hood Fuse Box

The under-hood fuse box, located in the engine compartment (typically near the battery on the driver's side), houses fuses and relays for critical engine components, lighting, and other high-current systems. Always refer to the diagram on the fuse box lid for the exact layout, as variations can occur based on trim level.

Relay Locations: Within the under-hood fuse box, you'll typically find relays for the EFI (ECM/Fuel Pump), HORN, H-LP (Headlights), A/C MAG (A/C Clutch), and STARTER. The exact positions are usually marked on the fuse box lid.

Dashboard Fuse Box (Driver's Kick Panel)

Located on the driver's side, behind a small access panel near the kick panel, this fuse box handles various interior electrical components, accessories, and convenience features.

Cargo Area/Trunk Fuse Box

Some 2018 Toyota RAV4 models may include an additional fuse box in the cargo area or trunk, often on the side panel. This box usually protects accessories specific to the rear of the vehicle, such as additional power outlets or power liftgate components.

How to Test a Fuse

Testing a fuse is a straightforward process that can help diagnose electrical issues.

1. Locate the fuse box: Refer to the "Quick Answer" section to find the correct fuse box for your circuit.
2. Identify the suspected fuse: Consult the fuse diagram on the lid of the fuse box and match the fuse number to the component you're troubleshooting.
3. Visual Inspection: Pull the suspected fuse straight out. Most modern fuses have a visible wire inside. If this wire is broken or melted, the fuse is blown and needs replacement.
4. Using a Multimeter (for more accurate testing):
   • Set your multimeter to the continuity or ohm setting.
   • Touch the probes to the two metal terminals on the top of the fuse.
   • A good fuse will show a reading of continuity (a low resistance or a beep, depending on your multimeter). A blown fuse will show no continuity or an "OL" (open loop) reading.
5. Replace with the correct rating: Always replace a blown fuse with a new one of the exact same amperage rating and type. Using a fuse with a higher rating can lead to serious electrical damage or fire.

Common Blown Fuses on This Vehicle

While any fuse can blow, some are more commonly affected due to their function or the loads they protect:

• CIG / P/OUTLET (15A Blue): These fuses protect the 12V power outlets. They frequently blow when a faulty accessory is plugged in, or if an accessory draws too much current. If your phone charger or portable air pump isn't working, check these first.
• RADIO / ACC (10A Red): Issues with your radio, infotainment screen, or certain interior accessories not working often point to these fuses. A short circuit in an aftermarket accessory or even a damaged wiring harness can cause them to blow.
• EFI (10A Red): If your RAV4 cranks but doesn't start, or you experience stalling, the EFI fuse is a crucial one to check. This fuse protects the Engine Control Module (ECM) and the fuel pump relay, both vital for engine operation.
• STOP (10A Red): If your brake lights aren't working, this fuse is the primary suspect. A faulty brake light switch or a short in the brake light circuit can cause it to blow.
• HEATER (40A Green): If your blower motor isn't working on any speed, this high-amperage fuse is a common culprit. A failing blower motor itself can draw excessive current and blow the fuse.

Always ensure the component the fuse protects is functioning correctly after replacing a fuse. If a fuse repeatedly blows, there's an underlying electrical issue that needs professional diagnosis.

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