Audi A6 2005 - Electrics Installationshandbuch

326All rights reserved. Subject to technical change.CopyrightAUDI AGI/[email protected] +49-841/89-36367AUDI AGD-85045 IngolstadtTechni

10The basic design of the control unit for power management is the same as the control unit used in the Audi A8 ‘03.It is installed in the boot well,

AudiAudi A6 2005>2005 (5)SaloonBBJ 3.0l Motronic / 160 kWGuided fault-findingFunction/component selectionSelecting a function or componentElectrica

Convenience electricsFunction diagramLegendE369 Central locking button for outer door handle, driver’s side*E370 Central locking button for outer door

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16The Advanced Key system was introduced with the Audi A8 '03 and has been fundamentally revised for the Audi A6 ’05. The most important new feat

17326_1471 Door control unit, driver's side J3862 Control unit for on-board power supply J5193 Control unit for access and start authorisation J5

18Division of functionsSystem control is broken down into three basic modules:– the control unit for access and start authorisation J518,– the antenna

19VersionsThe switch for access and start authorisation is available in the following versions:– with and without Advanced Key function– with and with

20– Reading in position P of the automatic transmission from the switch for gearbox position P F305:The signal is used to activate the integrated, mag

21The electromechanical steering column lock was integrated into the control unit for access and start authorisation. Functions– Terminal control:The

The new Audi A6 – the most progressive vehicle takes the lead.The new Audi A6 consistently adopts the highly networked electronic architecture, which

22– CAN Communication:The control unit is a participant on CAN Convenience. Data exchange between all the components of the access and start authorisa

23Vehicle keyThe key has a mechanically coded hinged bit for the lock cylinder in the driver’s door and the tailgate/boot lid. The transponder functio

24The control unit is only installed together with the Advanced Key option. It is located at the right of the dash panel, behind the glove compartment

25Four transmitting antennae are distributed in the vehicle and are used by the vehicle for radio communication with the vehicle key. The antennae tra

26Opening the vehicleConvenience electrics326_055Antenna for central locking and anti-theft warning systemR47Antenna on driver’s side for access start

271 The driver puts his/her hand into the finger well of the door handle. The sensor for outer door handle contact G415 sends the information "Fi

28Starting the vehicle using the buttonConvenience electrics326_056Antenna for central locking and anti-theft warning systemR47Antenna on driver’s sid

291 The driver presses the button for access and start authorisation E408 down fully. The button sends the information about "Ignition on" a

30Immobiliser 4Convenience electricsThe immobiliser 4 technology is used in the Audi A6 ’05.This means that all components must be "taught"

31New identityAs is already the case with the Audi A8 ‘03 , if a control unit is stolen, it is no longer necessary (for safety reasons) to also replac

NoteReference NoteReferenceControl unit installation positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Bus top

32External lightsFront headlightsThree different front headlights are used in the Audi A6 ’05:– Halogen headlights–Bi-xenon headlights–Adaptive lightH

33Bi-xenon headlightsBi-xenon headlights are installed with the "XenonPlus" option. The following lamps are fitted in the bi-xenon headlight

34Adaptive lightThe adaptive light works as a dynamic corner-sensitive headlight. With the dynamic cornering headlight, the headlight projection modul

35Internal structureThe pivot angle is monitored by an inductive pickup in the pivot module. The pickup value is evaluated immediately in the relevant

36Signal and data exchangeThe same sensors that are used for dynamic headlight range control for bi-xenon headlights are also used as level sensors. T

37Back lightsDifferent tail lights are used in the Audi A6 ’05, depending on the equipment variant.This is differentiated into the following:–Basic va

38High variant ECEThese back lights are installed if bi-xenon headlights at least are fitted as the front headlights.The external feature of the High

39High variant SAEThe back lights for the North American market have standard LED units. The LED units are used for the indicator and brake light func

40The control unit in dash panel insert J285 is available in two variants. The High-Line variant with colour display only comes in vehicles with adapt

41Function diagramLegendE493 Operating button for dash panel insertF1 Oil pressure switchF34 Warning contact for brake fluid levelE66 Switch for low c

4Overview1 Auxiliary heating control unit J3642 Control unit for ABS with EDL J1043 Control unit for distance control J4284 Transmitter unit in wheel

42FunctionsThe main function of the control unit for on-board power supply is to read in switch information and activate power outputs.It is familiar

43Emergency functionThe software for the control unit for on-board power supply can be used to implement emergency functions. If a fault is detected i

44Function diagramConvenience electricsE1 Light switchE3 Hazard warning light switchE7 Fog light switchE18 Switch for rear fog lightF4 Reversing light

45N395 Magnet for cover adjustment, left headlightN396 Magnet for cover adjustment, right headlightV5 Windscreen washer pumpV48 Left control motor fo

46System overviewConvenience electrics– Hall sender 1 for vertical adjustment of the steering column– Hall sender 2 for axial adjustment of the steeri

47DiagnosisBasic settingsAfter the control unit for on-board power supply J519 or the steering column or the switch for steering column adjustment E16

48A combined sensor for rain and light detection is used for the first time in the Audi A6 ’05. The sensor includes a light-control assistant function

49Function of the light sensorIn order to detect certain ambient conditions, such as tree-lined avenues or routes through tunnels, the light sensor re

50Function of the rain sensorThe rain sensor uses the physical light refraction principle to register the amount of moisture on the windscreen. The ci

51The control unit for wiper motor J400 was redesigned for use in the new Audi A6 ’05. As is already the case in the Audi A8 ‘03 and Audi A3 ’04, the

518 Rotation rate sensor 20219 Door control unit, passenger's side J38720 Control unit for seat adjustment with memory, passenger’s side, J52121

52An additional on-board power supply control unit is needed in the Audi A6 ´05 because of the huge range of functions it offers.FunctionsControl unit

53Function diagram326_082LegendE316 Glove compartment buttonJ520 Control unit 2 for on-board power supplyN119 Solenoid valve for Servotronic V1 Motor

54The tilt sensor for the anti-theft warning system is integrated directly in control unit 2 for on-board power supply J520 in the new Audi A6 ‘05. Th

55The central control unit for the convenience system J393, with which you may be familiar from the Audi A8 '03, is used in the Audi A6 ’05. The

56326_121Installation positionThe central control unit for the convenience system is installed above the battery in the rear right of the boot.System

57Interior lighting controlStandard equipment functionThe standard function includes activating the inside light in the roof lining, the front footwel

58Function diagramConvenience electricsC18 Interference filter for windscreen antennaE26 Switch for glove compartment lightF124 Contact switch for loc

59326_120V53 Motor for tailgate/boot lid central lockingV91 Motor for rear sun blindV155 Motor for tank cap lockingW6 Glove compartment lightW14 Illum

60DiagnosisThe central control unit for convenience system, J393, has the usual diagnostic functions, such as read fault memory, read measured value b

61You may already be familiar with the acoustic parking aid function "APS" from the Audi A3 ´04. For use in the Audi A6 ´05, a 4-channel sys

6Bus topologyOverviewNOX sensorJ583Rotation rate sensorG202Seat occupied recognitionJ706Power module for left headlightJ667Power module for right head

62326_119Input and output signalsThe parking aid control unit J446 requires CAN bus messages from various control units.4-channel system control units

63The door control units have a similar functionality to those used in the Audi A8 ´03 and are used in the Audi A6 ’05 with appropriately adapted func

64System overviewConvenience electrics– Power windows switch– Internal locking switch– Actuating elements for central locking– Actuating elements for

65The control units for seat adjustment can be used to set up to 8 individual seat positions for an electrically adjustable seat. The seat positions c

66Input and output signals(driver’s seat)Convenience electricsFunctionThe control unit for seat adjustment powers the positioning motors in the seat d

67Seat symmetry positioningThe "Symmetry positioning, driver’s seat/passenger’s seat" option, which is available in the MMI, can be used to

68Multimedia Interface (MMI)Equipment versionsAs in the current Audi A8 ’03, the MMI operating concept is now also integrated as standard in the new A

69MMI BasicStandard equipment in the new Audi A6 includes MMI Basic with the MMI operating concept, a 7" monochrome display (J685) in the dash pa

70MMI Basic PlusAs an option, the MMI Basic system can be equipped with additional functions in the radio and sound field in the form of a "Plus&

71MMI Basic NavigationThe MMI Basic Plus is available on request with a basic navigation function. For this purpose, a navigation module is integrated

7326_027Display and operating unit for front informationJ523Tel e p ho ne transmitter and for telephoneR36CD changerR41Digital sound packageJ525Switch

72MMI HighThe MMI High comes with the 7" colour display. The standard equipment of the Top system in Audi A6 ‘05 Infotainment includes an RDS dua

73Function overview and menu structure of the MMI operator system● Radio main menu–Dynamic transmitter list❍ Memory–Memory list❍ Band– FM (ultra-short

74InfotainmentLegend● Hardkey❍ Softkey–Sub-menu–Function* available later● Navigation Navigation– <Single-destination mode>– Country– City/P

75Antenna systemsThe antenna system in the new Audi A6 ´05 is integrated as a module in the top area of the rear window, to the left and next to the t

76If you order the Audi A6 ´05 with the MMI versions Basic, Basic Plus or Basic Navigation, the functionalities like sound system or a CD-based naviga

77The control unit for front information J523 includes an enhanced TP recording system in the Standard Plus and Standard Navigation versions. This is

78Although functional modules are integrated into the control unit for front information J523, the related address words for diagnosis in the VAG test

79Overview of the measured-value blocks available for the individual modulesModule DesignationGeneral measured-value blocksfor all modulesGeneral: Bat

80Versions: Basic, Basic Plus and Basic NavigationInfotainmentDecimal placeDescription1. Country version: D, GB, USA, F, E, I, P2. Equipment: ACC, Int

81Sound systemsDifferent sound system versions are available for the new Audi A6 ´05. A general feature of the systems is the two subwoofers integrate

8OverviewInstallation positions of fuses and relays1 E box in radiator tank, left2 Relay and fuse holder behind dash panel, left3 Fuse holder in dash

82Standard sound systemIf the optional Standard sound system is selected, the vehicle will not have the 2x20-watt amplifier module in the control unit

83Standard sound system diagnosisThe diagnosis process is effected via address word 47 as in the case of the series equipment, however, the separate c

84BOSE sound systemThe new Audi A6 ´05 comes with a BOSE sound system, which mainly comprises components from the current Audi A8 ‘03. The division of

85Measured-value block Designation01 General: Battery positive voltage02 MOST: MOST address, FOT temperature03 Status of ring break diagnosis line04 S

86Available telephone systemsTwo different telephone systems are available ex-works for the new Audi A6 ´05.Firstly, there is the fixed system with Bl

87The telephone transmitter and receiver R36 is fitted as standard with a Bluetooth module. In principle, the Bluetooth functionality is always availa

88Handsfree operationThe telephone transmitter and receiver R36 sends the signals for handsfree operation (Voice, Phone Mute, etc.) via the MOST Infot

89Mobile baseplate diagnosisThe mobile baseplate is diagnosed as standard using the address word 77 in the VAS tester. A selective or sequential actua

90Actuator testThe actuator tests listed in the table can be called up using the guided fault-finding function in the diagnosis tester. Most of these

91Notes

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92Notes

SSP 324 Audi A6 ´05 Chassis– Front axle technology– Rear axle technology– Steering system–ESP– Electromechanical parking brake EPBOrder No.: A04.5S00.

326All rights reserved. Subject to technical change.CopyrightAUDI AGI/[email protected] +49-841/89-36367AUDI AGD-85045 IngolstadtTechni