Introduction
This document provides guidelines for safely working with High Voltage components in Tesla vehicles, specifically for Model S, Model X, Model 3, and Model Y.
Important Warnings and Notes
Warning: Always treat the high voltage system as live, and only trained and certified personnel should perform the procedures.
Warning: Wear proper personal protective equipment, including insulating High Voltage gloves, and remove jewelry and objects from pockets before handling High Voltage components.
Note: The procedures only apply when the High Voltage battery is mounted to the vehicle, and the 12V power supply must be disconnected before starting.
Electrical Disconnect Procedure
The procedure involves disconnecting 12V and High Voltage power, opening the hood, and removing the rear underhood apron to access the First Responder Loop.
A multimeter is required to measure DC high voltage, and the voltage across the terminals of a known good 12V auxiliary battery must be checked.
Proper personal protective equipment must be worn, and the multimeter and leads must be capable of handling at least 500V.
Manual:
Download: Instructions for HV Battery Electrical Disconnection Model S, Model X; Model 3, Model Y
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