2019 Tesla Model S Fuse Box Diagram & Amperage

Quick Answer

The 2019 Tesla Model S features multiple fuse box locations to protect its complex electrical systems. You'll find fuse boxes in the following locations:

• Front Under-Hood (Frunk): Located in the front storage area, typically on the passenger side.
• Dash Kick-Panel: Generally found on the passenger side of the cabin, behind the kick panel.
• Rear Trunk/Cargo Area: Situated in the rear cargo area, often on the right-hand side panel.

Under-Hood Fuse Box (Frunk)

The under-hood fuse box in the 2019 Tesla Model S houses fuses and relays primarily for critical powertrain, charging, and front-end electrical components. Always verify the exact fuse layout against the diagram printed on the fuse box lid, as configurations can vary slightly due to trim levels and options.

Dash Kick-Panel Fuse Box (Passenger Side)

This fuse box manages many of the interior and accessory electrical systems. It's crucial for components that enhance cabin comfort and driver convenience. Access is usually by removing the passenger side kick panel near the door sill.

Rear Trunk/Cargo Area Fuse Box

Located in the rear of the vehicle, this fuse box typically controls circuits related to the rear lights, charging port, some auxiliary systems, and potentially features like the liftgate or trailer connections (if applicable). On the Model S, this area is critical for many of the vehicle's unique electrical demands.

How to Test a Fuse

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

1. Safety First: Always turn off the ignition and disconnect the negative battery terminal before checking or replacing fuses to prevent electrical shock or damage.
2. Locate the Fuse Box: Refer to your vehicle's owner's manual or the locations described above to find the correct fuse box.
3. Identify the Suspect Fuse: Look at the fuse box diagram (usually on the lid or in the manual) to find the fuse for the circuit you're troubleshooting.
4. Remove the Fuse: Use the plastic fuse puller tool (often found in the fuse box lid or with the car's tools) to carefully remove the fuse.
5. Visually Inspect: Hold the fuse up to the light. If the metal wire or filament inside is broken or melted, the fuse is blown and needs replacement.
6. Use a Multimeter (for non-visible fuses or verification):
   • Set your multimeter to the continuity setting (often indicated by a speaker icon). If it doesn't have continuity, use the lowest ohms (Ω) setting.
   • Touch one probe to each metal blade of the fuse.
   • A good fuse will show a reading of zero or very close to zero ohms (indicating continuity) and often beep if on the continuity setting. A blown fuse will show "OL" (open loop) or no reading, meaning no continuity.
7. Replace if Necessary: Always replace a blown fuse 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 the 2019 Tesla Model S is known for its advanced technology, certain fuses can still be prone to blowing due to various reasons. When diagnosing an electrical issue, start by checking these common culprits:

• 12V Power Outlets (Cigar Lighter) Fuse (Dash Kick-Panel, F3 - 20A): This is one of the most frequently blown fuses across all makes and models. Overloading the outlet with high-power accessories (such as air compressors, phone chargers not specific to high current, or inverters) is the primary cause. If your phone isn't charging or your accessories aren't working, check this one first.
• Radio/Infotainment System Fuse (Dash Kick-Panel, F1 - 10A): Issues with the large central display, audio system, or related infotainment functions can often be traced back to this fuse. While less common, a temporary electrical surge or a fault within an accessory connected to the system could cause it to blow.
• Blower Motor Fuse (Under-Hood, F9 - 30A): If your climate control fan isn't working on any speed, this fuse is a strong candidate. A failing blower motor, debris in the fan, or a resistive short can cause it to draw too much current and blow the fuse.
• Headlight Fuses (Under-Hood, F5, F6, F7, F8 - 10A/15A): While Tesla uses advanced lighting, a blown headlight fuse is still possible, especially if an individual bulb (if applicable) or a wiring issue creates a short. If one of your headlights isn't working, check the appropriate low or high beam fuse.
• Trailer Brake Controller Fuse (Rear Trunk, F6 - 30A - If Equipped): If you're experiencing issues with trailer brakes or associated lighting, and your Model S is equipped with a towing package, check this fuse. Faulty trailer wiring or an overloaded trailer can cause this fuse to blow.

Always remember to:

• Consult your owner's manual: For the most accurate and up-to-date fuse information specific to your vehicle's trim level and options.
• Verify the printed legend: The fuse box cover usually has a diagram that matches the fuses inside.
• Replace with the correct amperage: Never use a fuse with a higher amperage rating than specified. This can lead to overheating and potentially a vehicle fire.

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