2023 Toyota Tacoma Fuse Box Diagram & Amperage

Quick Answer

The 2023 Toyota Tacoma features three primary fuse box locations: under the hood (engine compartment), inside the cabin (driver's side kick panel), and in the cargo area/trunk (often behind a trim panel).

Under-Hood Fuse Box

The under-hood fuse box contains fuses and relays for critical engine functions, lights, and other high-current accessories. It's typically located on the driver's side, near the battery. Always consult your owner's manual and the fuse box lid for the exact layout, as variations can occur.

Relay Locations (Under-Hood):

• EFI Relay: Controls power to the ECM and fuel pump.
• IGN Relay: Powers various ignition-related circuits.
• STARTER Relay: Engages the starter motor.
• H-LP LH/RH Relays: Control the headlight circuits.
• A/C MG CLT Relay: Activates the A/C compressor clutch.
• HORN Relay: Powers the horn.

Cabin Fuse Box (Driver's Side Kick Panel)

This fuse box is typically located behind a removable panel on the driver's side, near the kick panel or under the dashboard. It houses fuses for interior electrical components, accessories, and some control modules.

Cargo Area/Trunk Fuse Box (if equipped)

Some Tacoma models, especially those with specific trim levels or additional accessories, may have a smaller fuse box in the cargo area or trunk. This is often dedicated to vehicle-specific accessories or towing packages not covered by the main fuse boxes. Consult your owner's manual for its exact location and component breakdown.

How to Test a Fuse

1. Locate the fuse box: Refer to your owner's manual or the quick answer section above.
2. Identify the suspected fuse: Use the fuse diagram on the fuse box lid or in your owner's manual.
3. Visual inspection: A blown fuse will typically have a broken wire or a dark, burnt appearance inside. For opaque fuses, visual inspection is not possible.
4. Use a fuse tester or multimeter:
   • With a fuse tester: Insert the tester's probes into the two small metal test points on the top of the fuse. If the light on the tester illuminates, the fuse is good. If not, it's blown.
   • With a multimeter: Set your multimeter to the continuity setting (often indicated by an audible beep or a diode symbol). Touch the probes to the test points on top of the fuse. A good fuse will show continuity (multimeter beeps or shows a very low resistance reading). A blown fuse will show no continuity or an "OL" (open loop) reading.
5. Always replace a blown fuse with a new fuse of the exact same amperage rating and type. Using a fuse with a higher amperage can lead to electrical system damage or fire.

Common Blown Fuses on This Vehicle

While any fuse can blow, some are more common than others due to the components they protect or the loads they handle:

• Cigar Lighter/12V Power Outlets (PWR OUTLET NO. 1/NO. 2): These often blow when accessories draw too much power or if there's a short circuit from a faulty device plugged in. If your outlets aren't working, check these fuses first.
• Radio/Infotainment (RADIO NO. 1, ACC): Issues with the stereo or infotainment system not powering on often point to these fuses. Sometimes a minor electrical glitch or a faulty aftermarket accessory can cause them to blow.
• Headlights/Tail Lights (H-LP LH/RH, TAIL): If one or more of your exterior lights suddenly stop working, a blown fuse is a likely culprit. Remember that a single bulb can also cause a fuse to blow.
• Blower Motor (HEATER): If your HVAC fan completely stops working, the main blower motor fuse can be the issue. Check the HEATER fuse under the hood. If the blower works on some speeds but not others, it's more likely a resistor pack issue.

Always start by confirming the fuse location and amperage rating from your vehicle's owner's manual or the diagram printed on the fuse box cover, as configurations can vary slightly between trim levels and production runs.

Find a trusted shop on Repairius.