Get Electrics and electronics -> Control units Guide for Audi RS E Tron Gt 4 Door First Generation (2021-2026)

Diagnostics CAN/Ethernet

684_134

Key:

J533

J794

J898

J949

U31

Data bus diagnostic interface (on centre tunnel)

Control unit 1 for information electronics (in dash panel near centre console)

Control unit for head-up display (in dash panel on driver's side)

Emergency call module control unit and communication unit (on roof module)

Diagnostic connection

Terminal 30 power supply

66 ohms

Control units

Data bus diagnostic interface J533 (gateway)

Data bus diagnostic interface J533 (gateway) is one of the main control units on the Audi e-tron GT, as it is on other models. As it is

a network system gateway, it is connected to all bus systems except for the information electronics CAN and the MOST bus. It is

fitted on the centre tunnel.

›

Diagnostic address

0019

Tasks of data bus diagnostic interface J533

›

Network system gateway

Controller for FlexRay bus

Energy manager for low-voltage system and high-voltage system

High-voltage coordinator

Diagnostic master

Interface for various connect services

Manages diagnostics firewall

›

LIN master for

›

A - Battery (12 V)

J453 - Multifunction steering wheel control unit

140

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Onboard supply control unit J519

Onboard supply control unit J519 is another important control unit on the Audi e-tron GT. It is fitted on the A-pillar on the driver’s

side.

›

Diagnostic address

0009

Tasks of onboard supply control unit J519

›

Exterior lighting master

Interior lighting master

Diagnostic gateway for the lighting control units

›

Data bus connections

›

Convenience CAN 2

Sub-bus connection to lighting control units and to driver assist systems control unit J1121

Connection to convenience CAN (contains a 120-ohm termination resistor)

LIN master for

›

A27 - Output module 1 for right LED headlight

A31 - Output module 1 for left LED headlight

E1 - Light switch

EX35 - Centre switch module 2 in dash panel

G355 - Humidity sender

G397 - Rain and light sensor

J400 - Wiper motor control unit

J528 - Roof electronics control unit

J530 - Garage door operation control unit

J866 - Control unit for electrically adjustable steering column

V388 - Driver seat backrest fan

V389 - Front passenger seat backrest fan

V390 - Driver seat cushion fan

V391 - Front passenger seat cushion fan

Y7 - Automatic anti-dazzle interior mirror

Interior lighting modules

141

Electrics and electronics -> Control units for Your Audi RS E Tron Gt 4 Door First Generation (2021-2026)

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