2020 Tesla Model S Fuse Box Diagram & Amperage

Quick Answer

The 2020 Tesla Model S features multiple fuse box locations to protect its complex electrical systems. You'll find fuse boxes located under the hood (front trunk), in the left-hand side of the dashboard (driver's side kick panel), and in the rear cargo area (trunk). Identifying the correct fuse box and fuse is crucial for diagnosing electrical issues.

Underhood Fuse Box (Front Trunk)

The underhood fuse box in your 2020 Tesla Model S is located in the front trunk (frunk). To access it, you may need to remove a trim panel. Always consult your owner's manual for exact access instructions. This fuse box typically contains fuses for major components and high-current circuits.

Note: Fuse numbering and configurations can vary slightly due to trim levels and manufacturing changes. Always refer to the fuse legend printed on the fuse box lid or in your owner's manual for the most accurate information for your specific vehicle.

Dashboard Fuse Box (Driver's Side Kick Panel)

The dashboard fuse box in the 2020 Tesla Model S is typically located on the driver's side, behind the kick panel near the footwell. You may need to gently pry off a cover to access it. This fuse box generally protects interior electrical components and accessories.

Note: Fuse numbering and configurations can vary. Always refer to the fuse legend printed on the fuse box lid or in your owner's manual for the most accurate information for your specific vehicle.

Trunk/Cargo Area Fuse Box

The trunk or cargo area fuse box in the 2020 Tesla Model S is located in the rear of the vehicle, usually under a trim panel in the trunk floor or side. This fuse box typically handles power for rear-specific components and larger accessories.

Note: Fuse numbering and configurations can vary. Always refer to the fuse legend printed on the fuse box lid or in your owner's manual for the most accurate information for your specific vehicle.

How to Test a Fuse

Testing a fuse is a straightforward process that requires a fuse puller (often found in the fuse box) and a multimeter or a fuse tester. Always turn off the ignition and any affected circuits before testing.

1. Locate the fuse: Identify the suspected fuse using the diagrams above and your vehicle's fuse box legend.
2. Remove the fuse: Use the fuse puller to carefully remove the fuse from its slot.
3. Visual inspection: Hold the fuse up to light. A blown fuse will have a visible break in the metal wire inside. If it's a clear fuse, this is easy to spot. Opaque fuses may require electrical testing.
4. Test with a multimeter: Set your multimeter to the continuity setting (often indicated by a speaker icon). Touch one probe to each metal blade of the fuse. A good fuse will show a reading of continuity (a beep or a near-zero resistance reading). A blown fuse will show no continuity.
5. Replace the fuse: If the fuse is blown, replace it with a new fuse 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 a Tesla Model S is known for its advanced electrical systems, certain fuses can still blow due to overloads or component failures. If you're experiencing an electrical issue, here are some common areas to check first:

• Cigar Lighter / 12V Outlets (Dashboard Fuse Box, F4, 20A): These often blow if an accessory draws too much power, or if a coin or foreign object shorts the outlet. Check any devices you've plugged in recently.
• Cabin Blower Motor (Underhood Fuse Box, F17, 30A): If your HVAC fan isn't working, this is a prime suspect. A failing blower motor or a blockage can cause excessive current draw.
• Headlights (Underhood Fuse Box, F8, F9, 15A Low Beam; F10, F11, 10A High Beam): While less common with LED systems, a sudden surge or internal fault could sometimes blow these fuses. If one headlight is out, check its dedicated fuse.
• Radio/Infotainment System (Dashboard Fuse Box, F2, 10A): If your screen or audio system is completely dead, this fuse is a good starting point. Check for any recent software updates or accessory installations.
• Trailer Brake Controller (Trunk/Cargo Area Fuse Box, F9, 15A): If you use a trailer, this fuse can blow if there's a short in the trailer's wiring or an issue with the trailer brake controller itself.

Always remember to check the simplest solutions first. If a fuse repeatedly blows, there's an underlying problem that needs to be addressed by a qualified technician.

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