2020 Tesla Model Y – Fuse Box Diagram & Amperage

Quick Answer

The 2020 Tesla Model Y has multiple fuse box locations to protect various electrical circuits. You'll find fuse boxes located under the hood (specifically, in the front trunk or "frunk" area), in the cabin usually behind a kick panel on the passenger side, and in the rear cargo area (trunk).

Under-Hood Fuse Box (Frunk)

The main fuse box in the frunk area primarily handles high-current circuits and crucial system components. Always refer to the fuse legend printed on the fuse box cover for the most accurate information for your specific vehicle trim.

Cabin Fuse Box (Passenger Side Kick Panel)

The cabin fuse box, typically located on the passenger side under the dashboard behind a kick panel, manages accessories and interior electrical systems. Accessing it usually involves removing a trim panel.

Rear Cargo Area Fuse Box (Trunk)

Located in the rear cargo area, often behind a trim panel on the side or under the load floor, this fuse box controls components in the rear of the vehicle, including taillights and charging ports.

How to Test a Fuse

Testing a fuse is a straightforward process that can help you diagnose electrical issues. You'll need a multimeter or a fuse tester.

1. Locate the Fuse Box: Identify the fuse box relevant to the circuit you're troubleshooting.
2. Turn Off the Ignition: Ensure the vehicle is off to prevent electrical shocks or system damage.
3. Identify the Suspect Fuse: Consult the fuse box diagram (either on the lid or in this guide) to find the fuse associated with the problematic component.
4. Visually Inspect: Many fuses (especially mini and ATO blade fuses) have a visible wire element inside. If this wire is broken or charred, the fuse is blown and needs replacement.
5. Use a Fuse Tester (Recommended): A simple fuse tester lights up if the fuse is good. Simply touch the probes to the small metal test points on the top of the fuse without removing it.
6. Use a Multimeter: Set your multimeter to the continuity setting (often indicated by a speaker icon). Touch one probe to each metal test point on the top of the fuse. A good fuse will show a reading of continuity (often a beep), while a blown fuse will show no continuity or an open circuit.
7. Replace if Blown: If the fuse is blown, replace it with a new fuse of the exact same amperage (A) and type. Using a fuse with a higher amperage can lead to serious electrical damage or fire.

Common Blown Fuses on This Vehicle

While Teslas are generally reliable, certain fuses can blow more often due to usage patterns or accessory loads. When troubleshooting, always start by checking the most common culprits first.

• 12V Power Outlets (Cigar Lighter Fuses): These are frequently blown due to overcurrent from charging various devices like phones, tablets, or using high-power accessories. If your phone charger or a portable air compressor isn't working, check the relevant 12V outlet fuse in the cabin or rear cargo fuse box first.
• Blower Motor Fuse: Issues with the HVAC system, particularly if the fan isn't working on any speed, often point to a blown blower motor fuse or a faulty blower motor resistor. Check the blower motor fuse in the cabin fuse box.
• Headlight Fuses: If one or both headlights are out, but the bulbs appear good, the headlight fuse might be the cause. Remember, modern LED headlights are often more integrated, but individual circuits can still be fused. Always check the fuses in the frunk fuse box if you have a headlight issue.
• Infotainment/Radio Fuse: If your touchscreen is black or not responding, or you have no audio, a blown infotainment fuse in the cabin fuse box is a good place to start your diagnosis.

What to Check First: Always verify the fuse legend in your vehicle's fuse box lid and consult your owner's manual for the most accurate and specific information regarding your Tesla Model Y's fuse locations and amperage ratings, as minor variations can occur between production batches or specific trim levels.

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