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Audi A6 2005 - Electrics User Manual

Audi A6 2005 - Electrics
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326
All rights reserved.
Subject to
technical change.
Copyright
AUDI AG
I/VK-35
Service.training@audi.de
Fax +49-841/89-36367
AUDI AG
D-85045 Ingolstadt
Technical release 01/04
Printed in Germany
A04.5S00.09.20
Audi A6 ‘05 – Electrics
Self-Study Programme 326
Vorsprung durch Technik www.audi.co.uk
Service Training

Table of Contents

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Audi A6 2005 - Electrics Specifications

General IconGeneral
BrandAudi
ModelA6 2005 - Electrics
CategoryAutomobile
LanguageEnglish

Summary

Overview

Control Unit Installation Positions

Diagram showing the location of various control units within the vehicle.

Bus Topology

Diagram illustrating the network connections between vehicle control units.

Installation Positions of Fuses and Relays

Illustrations showing the locations of fuses and relays in the vehicle.

Convenience Electrics

Control Unit for Power Management J644

Details on the power management control unit and its functions.

Access and Start Authorisation

Function diagram and legend for the access and start authorization system.

Advanced Key System Overview

Overview of the Advanced Key system and its revised functions for the A6.

Division of Functions: Access and Start Authorisation

Breakdown of the access and start authorisation system into three basic modules.

Switch for Access and Start Authorisation E415

Versions and functions of the ignition switch for access and start authorisation.

Control Unit for Access and Start Authorisation J518

Functions of the control unit for access and start authorization, including steering column lock.

Vehicle Key Features

Description of the vehicle key's mechanical and electronic functions.

Antenna Read-in Unit for Keyless Access J723

Function of the antenna read-in unit in evaluating door handle sensor signals.

Sensors for Outer Door Handle Contact G415 - G418

Details on capacity-based sensors in outer door handles and their signals.

Antennae for Access and Start Authorisation

Location and function of the four transmitting antennae used for radio communication.

Button for Access and Start Authorisation E408

How the start/stop button functions and is evaluated for safety.

Opening the Vehicle Process

Diagram and explanation of the vehicle unlocking process using keyless entry.

Starting the Vehicle Using the Button

Diagram and explanation of the engine start process using the start button.

Immobiliser 4 Technology

Description of Immobiliser 4 technology and integrated components.

New Identity Function

Procedure for replacing stolen control units with the 'New Identity' function.

Component Protection

Explanation of component protection for Convenience and Infotainment units.

External Lights

Overview of the different types of front headlights used in the A6.

Front Headlights

Overview of the three types of front headlights used in the Audi A6 '05.

Halogen Headlights

Details on standard halogen headlights, lamp types, and country variants.

Bi-Xenon Headlights

Description of XenonPlus headlights, lamp types, and country variants.

Adaptive Light Function

How adaptive light works as a dynamic corner-sensitive headlight.

Internal Structure of Adaptive Light

Explanation of the inductive pickup and power module in the adaptive light system.

CAN Communication for Headlight Control

How input variables are used for calculating pivot angle and dynamic control.

Show Room Function

Function to pivot headlights for presentation purposes, adaptable via diagnosis tester.

Back Lights

Overview of the different types of tail lights used in the A6.

Basic Variant ECE Tail Lights

Details on basic ECE tail lights, lamp activation, and sections.

High Variant ECE Back Lights

Features of High ECE back lights, including LED brake lights and fog/reversing light placement.

High Variant SAE Back Lights

Details on SAE back lights for North American market, including LED units and fog/reversing lights.

LED Unit Diagnosis

How LED failures are detected and reported in the lamp housing.

Control Unit in Dash Panel Insert J285

Variants and functions of the dash panel insert control unit.

Lamp Failure Indication

How the system indicates exterior lighting lamp failures via symbols and text.

Outside Temperature Indicator

How the outside temperature is displayed, using two sensor inputs.

Control Unit for On-Board Power Supply J519

Functions of the on-board power supply control unit.

Emergency Functionality

How the control unit implements emergency functions in case of faults.

Other Functionalities

Additional functions managed by the on-board power supply control unit.

Versions of On-Board Power Supply Unit

Description of the three functional versions of the control unit.

Function Diagram: On-Board Power Supply

Diagram showing connections for control unit J519, headlights, and other components.

System Overview: On-Board Power Supply J519

Input signals evaluated and loads controlled by the J519 unit.

Diagnosis and Coding for On-Board Power Supply J519

Procedures for basic settings, actuator tests, and coding the J519 unit.

Sensor for Rain and Light Detection G397

Function of the combined rain and light sensor and its connection to the control unit.

Function of the Light Sensor

How the light sensor registers ambient conditions in two areas.

Tasks of the Rain Sensor

Functions of the rain sensor, including wiper control and driving light activation.

Function of the Rain Sensor

How the rain sensor registers moisture using light refraction principles.

Control Unit for Wiper Motor J400

Functionality and integration of the wiper motor control unit.

Control Unit 2 for On-Board Power Supply J520

Functions and versions of the additional on-board power supply control unit.

Tilt Sensor for Anti-Theft Warning System

Integration of the tilt sensor into control unit J520 and its function.

Central Control Unit for Convenience System J393

Tasks and functions of the central convenience system control unit.

Installation Position of Convenience Control Unit

Location of the central convenience system control unit in the boot.

System Overview of Convenience Control Unit

Input signals received and loads activated by the J393 control unit.

Interior Lighting Control

Standard and additional equipment functions for interior lighting.

Diagnosis and Coding for Convenience System J393

Diagnostic functions, actuator tests, and coding options for the convenience system.

Parking Aid Control Unit J446

Description of parking aid systems, versions, and installation.

Input and Output Signals for Parking Aid

CAN bus messages required and output signals for the parking aid control unit.

Door Control Units J386 - J389

Functionality, diagnosis, and versions of door control units.

System Overview: Door Control Units

Input signals received and loads activated by door control units.

Control Units for Seat Adjustment

Setup and diagnosis of control units for electrically adjustable seats.

Input/Output Signals for Seat Adjustment

Signals from switches and door units to the seat adjustment control unit.

Seat Symmetry Positioning

Using MMI to align passenger seat symmetrically with the driver's seat.

Comfort Side View

Adjusting passenger seat for better B-pillar visibility via MMI.

Memory Retrieval

Ways to retrieve stored seat memory settings: personal buttons or radio code.

Infotainment

Multimedia Interface (MMI) - Equipment Versions

Overview of MMI versions and data transfer via MOST bus technology.

MMI Basic System

Standard equipment for MMI Basic, including display, tuner, CD drive, and amplifier.

MMI Basic Plus System

MMI Basic with additional functions like TP Memo for traffic announcements.

MMI Basic Navigation System

MMI Basic with integrated navigation module for optical and audible route guidance.

MMI High System

MMI High features: color display, dual-tuner, sound system, CD changer, optional DVD navigation.

Navigation Functions and Setup

Details on destination entry, route criteria, map features, and setup options.

Info Main Menu and Car Main Menu

Overview of menus for TMC messages, user management, and vehicle maintenance.

Antenna Systems

Overview of antenna modules integrated into the rear window for various systems.

Control Unit for Front Information J523

Functions of the J523 unit for MMI versions, installation, and hardware.

Diagnosis for Control Unit J523

Overview of address words and available diagnostic functions for J523 modules.

Measured-Value Blocks for Modules

Detailed list of measured-value blocks for various modules and their designations.

Coding Variants for Control Unit J523

Table detailing decimal places and descriptions for coding control unit J523.

Infotainment Control Unit Holder

Location of infotainment control units, primarily in the boot and dash panel.

Sound Systems

Overview of different sound system versions and their components.

Available Telephone Systems

Overview of fixed and mobile baseplate telephone systems and their integration.

Voice Operation Features

How voice operation works with the mobile baseplate and MMI systems.

Handsfree Operation and Echo Compensation

How handsfree operation signals are processed and echo compensation is managed.

Mobile Baseplate Diagnosis

Diagnosis procedures, including actuator tests and signal checks for the mobile baseplate.

Measured-value blocks for Mobile Baseplate

List of measured-value blocks available for diagnosing the mobile baseplate.

Actuator Tests for Mobile Baseplate

Possible actuator tests for the mobile baseplate, including selective activation.

Mobile Baseplate Adaptation

Adaptation channels and their designations for configuring the mobile baseplate.

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