LAUNCH-X431 Tesla connector function and usage introduction

 Tesla is one of the most popular electric vehicle brands in the world, and LAUNCH X431 has also launched diagnostic functions and interfaces for Tesla electric vehicles. This article will introduce the functions and usage of these Tesla interfaces of LAUNCH X431.

1. Tesla-12 + 20 connector

This connector is suitable for Model S and Model X models. It can test fault codes, clear fault codes, and supports special functions. Check the official website to find out which special functions are supported. (http://qcar.x431.com/qcar/#/)

The specific wiring diagram of Tesla-12+20 connector:

Part [1] is the Tesla-12+20 connector (12PIN) wiring diagram, which is applicable to S(X) models produced before September 2015 (including September);
Part [2] is the Tesla-12+20 connector (20PIN) wiring diagram, which is suitable for S(X) models produced after September 2015.

2. Tesla airbag repair special connector

Tesla airbag repair special connector is mainly used to reset second-hand airbag collision data.

For Tesla Model X:
Description of the wiring and pins of the Model X airbag control unit connector:

+12V: 12V power supply
GND: Ground
CAN_H: CAN high
CAN_L: CAN low

Wiring diagram of Model X airbag repair connector:

For Tesla Model S:
Instructions for wiring and pinouts of the Model S airbag control unit interface:

PW: Wiring. Enables it to read and write EEPROM.
+12V: 12V power supply
GND: Ground
CAN_H: CAN High
CAN_L: CAN Low

Wiring diagram for the Model S Tesla airbag repair dedicated interface:

For Tesla Model 3 models:
Wiring and pin description of Model 3 airbag control unit connector:

+12V: 12V power supply
GND: Ground
CAN_H: CAN high
CAN_L: CAN low

Wiring diagram of Model 3 airbag repair connector:

Wiring diagram for Model 3/Y bump unlock function:

3. Tesla 3 battery pack test line model 152, RoHS

This test line is used for testing the data flow (Electric motor, power battery and electronic control system) of Model 3 and Model Y, and testing the battery pack;

4. X431 new energy LAN port diagnostic connector

Used for the local area network (LAN) function (the car enters maintenance mode), the currently supported products are: X431 PAD series, EV MAX, PRO 3S+ V3.0/V5.0 and other diagnostic equipment (you can ask the sales staff whether it is supported).
Supports Simplified Chinese, Traditional Chinese, Japanese, Korean, Arabic, Russian and other languages.

The specific equipment wiring diagram is as follows:

Wiring diagram for Model 3/Y 2018 and later models:

Model S/X wiring diagram after 2022:

Model S/X 2018–2021 wiring diagram:

Model S/X 2014–2018 Tegra chip MCU wiring diagram:

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