Descripción: Audi A3 '13 Onboard Power Supply and Networking...
610
Audi Vorsprung durch Technik
Self Study Programme 610 For internal use only
Audi A3 ’13 Onboard Power Supply and Networking
All rights reserved. Technical specifications are subject to change. Copyright AUDI AG I/VK-35
[email protected] AUDI AG D-85045 Ingolstadt Technical status 04/12 Printed in Germany A12.5S00.94.20
Audi Service Training
Whether the engine fuel system, the dual clutch gearbox, the infotainment system or any one of a number of driver assistance systems – a modern vehicle would cease to function without electrical and electronic equipment. A high-performance alternator, a battery rated for the vehicle's specification, and reliable and fast data transfer across various data bus systems are all vital components of a stable and efficient onboard power supply system.
The first part of this self study programme summarises the onboard power supply of the Audi A3 ’13 and provides information on the functions, installation locations and specific features of numerous control units. The design and function of the various headlight and tail light versions are described in "Exterior lighting". This is a quick and direct way to obtain an in-depth knowledge of the electrical and electronic equipment in the Audi A3 ’13.
610_070
Learning objectives of this Self Study Programme: After you have worked your way through this Self Study Programme, you will be able to answer the following questions: • Where are the fuseholders located in the Audi A3 ’13 and what are their designations? • Where are electrical components fitted in the vehicle?
2
• Which bus systems are used in the Audi A3 ’13? • What are the tasks of the control units in the vehicle? • What are the versions of the exterior lighting and how are the individual light functions implemented? • What are the versions of the headlight range adjustment system?
Contents Power supply Battery _______________________________________________________________________________________________________________________________________________________ 4 Battery housing _____________________________________________________________________________________________________________________________________________ 4 Fuses, relays and jump start terminal ____________________________________________________________________________________________________________________ 5
Networking Installation locations of control units ____________________________________________________________________________________________________________________ 6 Topology _____________________________________________________________________________________________________________________________________________________ 8 Overview of bus systems __________________________________________________________________________________________________________________________________ 10 New features of the bus system __________________________________________________________________________________________________________________________ 10 Optical data bus system MOST150 _______________________________________________________________________________________________________________________ 11 Optical replacement control unit VAS 6778 _____________________________________________________________________________________________________________ 11
Control units Brief descriptions __________________________________________________________________________________________________________________________________________ 12
Exterior lighting Light switch _________________________________________________________________________________________________________________________________________________ 29 Headlights __________________________________________________________________________________________________________________________________________________ 30 Fog light ____________________________________________________________________________________________________________________________________________________ 35 Headlight range control ___________________________________________________________________________________________________________________________________ 37 Tail lights ____________________________________________________________________________________________________________________________________________________ 40 High-level brake light ______________________________________________________________________________________________________________________________________ 42 Number plate lights _______________________________________________________________________________________________________________________________________ 42
Annex Self Study Programmes ___________________________________________________________________________________________________________________________________ 43
• The Self Study Programme teaches a basic knowledge of the design and functions of new models, new automotive components or new technologies. It is not a Repair Manual! Figures are given for explanatory purposes only and refer to the data valid at the time of preparation of the SSP. For further information about maintenance and repair work, always refer to the current technical literature.
Note
Reference
3
Power supply Battery In the Audi A3 ’13, the vehicle battery is housed in the engine bay and protected by a battery box. Battery size and type are dependent on engine version, trim and country specification. Standard batteries, EFB batteries and AGM batteries are used.
Vehicles with petrol engines and a start-stop system are equipped with an EFB battery, while vehicles with diesel engines and a start-stop system are equipped with an AGM battery. Vehicles with an auxiliary heater generally have an AGM battery.
EFB
AGM battery
An EFB (Enhanced Flooded Battery) can be regarded as a heavyduty wet-cell battery. The positive plate inside the battery is coated with an additional polyester scrim. This provides additional hold for the active battery material. The deep-cycle resistance is higher than that of conventional batteries. An EFB is charged in exactly the same way as a conventional battery.
In AGM (Absorbent Glass Mat) batteries, the battery electrolyte is held within a microporous glass matting. In addition to having higher deep-cycle resistance than an EFB battery, the AGM battery is noted for its leak-proof construction. When charging an AGM battery, it is important to follow the charger's operating instructions and, where applicable, to program the charger for AGM batteries.
The following batteries are used in the Audi A3 ’13: Standard batteries
EFB
AGM batteries
• • • • •
• 59 Ah/280 A • 69 Ah/360 A
• 58 Ah/340 A • 68 Ah/380 A
44 Ah/220 A 51 Ah/280 A 60 Ah/280 A 61 Ah/330 A 72 Ah/380 A
Battery housing The housings of the batteries used in the Audi A3 ’13 vary in length. On the battery bracket there are holes for three different lengths of battery housing.
Hole
Battery housing length
1
212 mm
2
247 mm
3
278 mm
Hole 1 Hole 2
Hole 3
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Fuses, relays and jump start terminal Jump start terminal on the engine bulkhead
The battery's positive terminal and the jump start terminal on the engine bulkhead are used for battery charging and jump starting.
Ground terminal with battery monitor control unit J367
Battery positive
Battery Fuse rail on the e-box Designation of fuses in current flow diagram "SA"
e-box with fuses and relays Designation of fuses in current flow diagram "SB" 610_073
Fuseholder and relay carrier under the dash panel, left Designation of fuses in current flow diagram "SC"
Fuses In addition to the standard flat fuses, the space-saving mini fuses and the circuit breakers (thermal fuses), a new type of fuse is used in the Audi A3 ’13: the so-called J-Case fuse. The fuses are colour coded for easy identification:
J-Case fuses
Fuse rating
Colour
20 A
blue
25 A
white
30 A
pink
40 A
green
50 A
red
60 A
yellow
A new gripping tool is available for removing and fitting this new type of fuse. It is housed in the e-box cover in the engine bay.
610_072
Gripping tool for J-Case fuses
610_071 5
Networking Installation locations of control units Some of the control units shown in the overview are optional and/ or country-specific equipment.
Refer to the current service literature for details of controls unit positions, as well as instructions for installation and removal.
J387 J364
J668 J104
J250
J794
J500
R242 E380
J685
J428
J844 J234
J587 J255
J518 J745
J533
J527 J285
J743
J525 J764
J623
J791 J667
J519
J386
Key: E380 J104 J234 J250 J255 J285 J345 J364 J386
6
Multimedia system operating unit ABS control unit Airbag control unit ECD control unit (electronically controlled damping) Climatronic control unit Control unit in dash panel insert Trailer detector control unit Additional heater control unit Door control unit, driver side
J387 J428 J492 J500 J518 J519 J525 J527 J533
Door control unit, front passenger side ACC control unit All-wheel drive control unit Power steering control unit Entry and start authorisation control unit Onboard power supply control unit Digital sound package control unit Steering column electronics control unit Data bus diagnostic interface
R78 J772
J769
J345
J770
J492
J843 J608
610_007
J587 J608 J623 J667 J668 J685 J743 J745 J764
Selector lever sensors control unit Special vehicle control unit Engine control unit Headlight power module, left Headlight power module, right MMI display Twin clutch gearbox mechatronics Cornering light and headlight range control unit Electrical steering column lock control unit
J769 J770 J772 J791 J794 J843 J844 R78 R242
Audi lane assist control unit Audi lane assist control unit 2 Reversing camera system control unit Audi parking system control unit Information electronics control unit 1 Vehicle tracking system interface control unit Headlight assist control unit TV tuner Front camera for driver assistance systems
7
Topology Light switch E1
Headlight power module, left J667
Sliding sunroof control unit J245
Wiper motor control unit J400
Headlight power module, right J668
Anti-theft alarm sensor G578
Rain and light detector sensor G397
Alarm horn H12
Humidity sensor G355
Power output module for left LED headlight
Onboard power supply control unit J519
Power output module for right LED headlight
Control unit in instrument cluster J285
Audi side assist control unit 2 J770
Steering column electronics control unit J527
Diagnostic port Multifunction steering wheel control unit J453
Door control unit, rear driver side1) J926
Door control unit driver side J386
Door control unit, rear passenger side1) J927
Door control unit passenger side J387
Data bus diagnostic interface J533
Trailer detector control unit J345
NOx sender control unit J583 Engine control unit J623
Entry and start authorisation control unit J518
NOx sender control unit 2 J881
Electrical steering column lock control unit J764
Seat occupancy recognition control unit J706
Vehicle tracking system interface control unit J843
Front left seat belt tensioner control unit J854
Special vehicle control unit J608
Front right seat belt tensioner control unit J855
Airbag control unit J234
Climatronic control unit2) J255
Twin clutch gearbox mechatronics J743
Selector lever sensors control unit J587
Fresh air blower control unit J126
8
Refrigerant circuit pressure sender G805
Air humidity sender in fresh air intake duct G657
Air quality sensor G238
The topology shows all control units with connectivity to the data bus system. Some of the control units shown here are optional or country-specific equipment, or will be introduced at a later date.
Adaptive light and headlight range control unit J745
This diagrammatic representation of all possible control units is purely theoretical. The adaptive light and headlight range control unit J745, for example, is never fitted at the same time as the headlight range control unit J431, rather only one or the other.
Headlight range control unit J431
Multimedia system operating unit E380
MMI display J685 Audi side assist control unit J769 Headlight assist control unit J844 Front camera for driver assistance systems R242
Digital sound package control unit J525
ACC control unit J428
Information electronics control unit 1 J794
ABS control unit J104
Battery monitor control unit J367
Power steering control unit J500
Alternator C
TV tuner R78
All-wheel drive control unit J492
Reversing camera system control unit J772
Audi parking system control unit J791
Auxiliary heater control unit J364
Auxiliary heating radio controlled receiver R64
ECD control unit (electronically controlled damping) J250
610_001
Key:
1) 2)
Powertrain CAN bus
Infotainment CAN bus
LIN bus
Convenience CAN bus
Diagnostics CAN bus
Sub-bus systems
Extended CAN bus
Suspension CAN bus
MOST bus
For five-door models only For more details of heater / air conditioning configurations, refer to SSP 609 "Audi A3 ’13". 9
Overview of bus systems Bus system
Cable colour
Configuration
Max. data transfer rate
Characteristic
Powertrain CAN bus
Electrical two-wire bus system
500 kbit/s
Not single-wire capable
Convenience CAN bus
Electrical two-wire bus system
500 kbit/s
Not single-wire capable
Extended CAN bus
Electrical two-wire bus system
500 kbit/s
Not single-wire capable
Infotainment CAN bus
Electrical two-wire bus system
500 kbit/s
Not single-wire capable
Suspension CAN bus
Electrical two-wire bus system
500 kbit/s
Not single-wire capable
Diagnostics CAN bus
Electrical two-wire bus system
500 kbit/s
Not single-wire capable
MOST bus
Optical bus system
150 Mbit/s
Ring structure: an open circuit leads to total system failure
LIN bus
Electrical single-wire bus system
20 kbit/s
Single-wire capable
Sub-bus system (private bus)
Electrical two-wire bus system
500 kbit/s
Not single-wire capable
New features of the bus system • The convenience CAN bus and infotainment CAN bus are highspeed bus systems in the Audi A3 ’13 • New MOST bus – MOST150 • The control unit in the instrument cluster J285 is a convenience CAN user • The data bus diagnostic interface J533 is the master of LIN slave "multifunction steering wheel control unit J453" • The data bus diagnostic interface is not a MOST bus user • The information electronics control unit 1 J794 is the system and diagnostic manager for the MOST bus • The information electronics control unit 1 J794 is connected to the operating unit and MMI display via the sub-bus system
10
The networking diagram on pages 8/9 provides a schematic overview of the communication paths of in-vehicle control units. The equipment level dictates which control units are installed in the vehicle. Here are just a few examples: • The headlight range control unit J431 is never fitted at the same time as the cornering light and headlight range control unit J745. • The Headlight Assist control unit J844 is never fitted at the same time as the front camera for driver assistance systems R242 • The seat occupancy recognition control unit J706 is only available in the North American market • The TV tuner is only available in certain markets
Optical data bus system MOST150 History For the first time in an Audi vehicle, an optical data bus system known as the MOST bus (MOST25 to be precise) is fitted in the Audi A8 ’03. This data bus system is named after the "Media Oriented Systems Transport (MOST) Cooperation". This group is made up of various automobile manufacturers, their components suppliers and software companies, who joined forces to create a standardised high-speed data transfer system.
The term "Media Oriented Systems Transport" denotes a network with media-oriented data transport. This means that, unlike in the CAN data bus, address-oriented messages are sent to a specific recipient. This technology is used in Audi vehicles to transfer data within the infotainment system. The data transfer rate on the MOST25 bus is approx. 25 Mbit/s.
MOST150 The MOST150 is used in the Audi A3 ’13 for the first time in an Audi vehicle. This developmental stage in MOST technology is six times faster than the MOST25 bus. The development process necessitated various modifications to MOST components.
For instance, the transmitter and receiver units – Fiber Optical Transmitters (FOT) – had to be adapted. Other components, such as the optical connectors, the fibre optics and the electrical connections of the control units, are identical to those of the MOST25.
Digital sound package control unit J525
System manager Up to three control units are integrated in the MOST bus in the Audi A3 ’13: • Information electronics control unit 1 J794 • Digital sound package control unit J525 • TV tuner R78 In the Audi A3 ’13 the information electronics control unit 1 J794 acts not only as the system manager for the MOST bus but also as the diagnostic manager - a function previously performed by the data bus diagnostic interface J533.
Information electronics control unit 1 J794
TV tuner R78
610_069
Optical replacement control unit VAS 6778 Diagnostics The ring break diagnosis procedure is identical to that of the previous MOST bus system. However, the inspection plan for the Audi A3 ’13 must be retrieved in the vehicle diagnostic tester using address word 5F. Even though the ring break diagnosis procedure remains unchanged, a modified tool – the optical replacement control unit VAS 6778 – must be used in the event of an optical fault in the MOST150 bus, due to the modified transmitter and receiver units in the control units.
610_074 11
Control units Brief descriptions Onboard power supply control unit Designation
Onboard power supply control unit J519
Equipment
Always fitted
Installation position
Under the left-hand dash panel
Tasks
• • • • • •
Diagnostic address
09
Data bus communication
• Convenience CAN bus user • J519 is the LIN master for: • LIN 1 – light switch E1; wiper motor control unit J400; combined sensor – rain and light detection sensor G397 and humidity sender G355 • LIN 2 – alarm horn H12 • LIN 3 – sliding sunroof control unit J245; antitheft alarm sensor G578
Special feature
LIN 1 is distributed to two pins on J519. Wiper motor J400 is connected to pin B30. Rotary light switch E1 and the combined sensor – rain and light detection sensor G397 and humidity sender G355 – are connected to pin C28. This means that the control units connected to pin C28 are also affected in the event of a short circuit to positive or negative at pin B30.
Central locking master Exterior light master Interior light master Antitheft alarm / optional equipment master, PR No.: 7AL Activation of various relays Activation of various convenience components: • Seat heaters • Heated spray nozzles • Windscreen washer pump • Headlight washer system pump • Reading in various switches and buttons • Reading in various sensors
J519
610_009
Reference For a detailed description of the onboard power supply control unit J519, refer to SSP 611 "Audi A3 ’13 – Electronics and Driver Assistance Systems".
12
Gateway Designation
Data bus diagnostic interface J533
Equipment
Always fitted
Installation position
Under the left-hand dash panel
Tasks
• • • •
Diagnostic address
19
Data bus communication
• All CAN bus system users • LIN master of battery monitor control unit J367 and alternator • LIN master of multifunction steering wheel control unit J453 / optional equipment
Special feature
Not a MOST bus user
Networking gateway Diagnostic master Energy management system control Master for multifunction steering wheel / optional equipment
J533
610_010
Instrument cluster with driver information system (DIS) Designation
Control unit in dash panel insert J285
Equipment
Always fitted Versions: • Monochrome DIS without onboard computer, PR No.: 9S4 • Monochrome DIS with onboard computer, PR No.: 9S5 • Colour DIS with onboard computer, PR No.: 9S6
Installation position
In the dash panel
Tasks
• Display of information relevant to the driver • Immobiliser master
Diagnostic address
17
Data bus communication
Convenience CAN bus user
Special feature
For the first time in an Audi model, this system is a convenience CAN user
J285
610_011
13
Steering column electronics Designation
Steering column electronics control unit J527
Equipment
Always fitted
Installation position
On the steering column
Tasks
• Connects the steering column stock and the electrical components in the steering wheel to the vehicle electronics • Terminal management master for vehicles without advanced key
Diagnostic address
16
Data bus communication
Convenience CAN bus user
Special feature
Transfers the LIN signals from the gateway to the multifunction steering wheel control unit J453 in models equipped with a multifunction steering wheel
J527
610_012
Trailer detector Designation
Trailer detector control unit J345
Equipment
Optional equipment, PR No.: 1D2
Installation position
Behind the side trim on the left-hand side of the luggage compartment
Task
Interconnects the vehicle electrics and the trailer electrics
Diagnostic address
69
Data bus communication
Convenience CAN bus user
J345
610_013
14
Heating / air conditioning Designation
Heater control unit J65 Air conditioning system control unit J301 Climatronic control unit J255
Equipment
• Heating, PR No.: 9AC • Air conditioning system, PR No.: KH6 • Automatic air conditioning, PR No.: 9AK
Installation position
In the dash panel, centre
Tasks
Controlling: • Temperature • Blower • Air distribution
Diagnostic address
08
Data bus communication
• • • •
Special feature
All LIN slaves are connected to a LIN output.
Convenience CAN bus user J65 is the LIN master of the fresh air blower J126 J301 is also the LIN master of the refrigerant circuit pressure sender G805 J255 is also the LIN master of the air quality sensor G238 and the air humidity sensor in fresh air duct G657
J65
610_014
J301
610_015
J255
610_016
15
Door electronics, driver side Designation
Door control unit, driver side J386
Equipment
Always fitted
Installation position
In the driver's door
Task
Controlling the electrical and electronic components in and on the driver's door
Diagnostic address
42
Data bus communication
• Convenience CAN bus user • In 5-door models it is connected to the door control unit, rear driver side J926 via a LIN line
Special features
• J386 acts as the substitute master for the central locking system in the event of failure of the onboard power supply control unit J519 • Activates the side marker lights in the driver's door mirror
J386
610_017
Front passenger side door electronics Designation
Door control unit, front passenger side J387
Equipment
Always fitted
Installation position
In the front passenger's door
Task
Controlling the electrical and electronic components in and on the front passenger's door
Diagnostic address
52
Data bus communication
• Convenience CAN bus user • In 5-door models it is connected to the door control unit, rear passenger side J927 via a LIN line
Special feature
Activates the side marker lights in the front passenger door mirror
J387
610_018
16
Advanced key / keyless entry and start authorisation Designation
Entry and start authorisation control unit J518
Equipment
Optional equipment, PR No.: 4F2
Installation position
Under the dash panel
Tasks
• Reading in both capacitive sensors • Activation of the entry and start authorisation aerials
Diagnostic address
B7
Data bus communication
Convenience CAN bus user
Special feature
For the first time in an Audi model, the external aerials connected to J518 are not installed in the doors, rather on the vehicle underbody in the B-post area.
J518
610_019
Vehicle tracking Designation
Vehicle tracking system interface control unit J843
Equipment
Optional equipment, PR No.: 7G9
Installation position
Behind the side trim on the left-hand side of the luggage compartment
Tasks
• Requirement for installation of Audi Tracking Assistant Plus • Data exchange between the tracking assistant and other vehicle control units
Diagnostic address
• 3D • 30, if an additional special vehicle control unit is fitted
Data bus communication
Convenience CAN bus user
Special feature
The tracking assistant is always fitted as a retrofit solution (even in new vehicles). The vehicle tracking system interface control unit J843 cannot be retrofitted.
J843
610_021
17
Electrical steering column lock Designation
Electrical steering column lock control unit J764
Equipment
Optional advanced key, PR No.: 4F2
Installation position
On the steering column
Tasks
• Locking and unlocking the steering column • Terminal management master
Diagnostic address
2B
Data bus communication
Convenience CAN bus user
Special features
• Can be replaced separately from the steering column • Immobiliser user • Reads in the entry and start authorisation button
J764
610_020
Special functions Designation
Special vehicle control unit J608
Equipment
Optional equipment, PR No.: F5B
Installation position
Behind the side trim on the left-hand side of the luggage compartment
Task
To allow special functions, such as taxi, driving school etc., to be implemented.
Diagnostic address
3D
Data bus communication
Convenience CAN bus user
Special feature
The hardware control unit is identical to the vehicle tracking system interface control unit J843
J608
610_022
18
Reversing camera Designation
Reversing camera system control unit J772
Equipment
Optional equipment Versions: • Parking aid plus with reversing camera, PR No.: 7X2+KA2 • Parking aid with reversing camera, PR No.: 7X5+KA2
Installation position
Behind the side trim on the right-hand side of the luggage compartment
Tasks
• Rectifying and processing the raw images captured by the reversing camera • Transferring the processed images to the information electronics control unit 1 J749
Diagnostic address
6C
Data bus communication
Convenience CAN bus user
Special features
• Video connections are mechanically encoded • Only two of the three connections are used
J772
Reversing camera connection
Unused
Electrical Video output connection
610_025
Audi adaptive cruise control (automatic speed and distance control) Audi pre sense front Designation
ACC control unit J428
Equipment
Optional equipment for vehicles with: • S tronic, PR No.: 8T3 • Manual gearbox, PR No.: 8T5 • pre sense front, PR No.: 7W2
Installation position
Behind the radiator grille below the number plate mount in the centre
Tasks
• Radar scanning of traffic • Controlling speed and distance
Diagnostic address
13
Data bus communication
CAN-Extended bus user
Special feature
Independent braking to a standstill behind a vehicle driving ahead and independent restarting (ACC Stop & Go)
J428
610_043
19
Auxiliary heater Designation
Auxiliary heater control unit J364
Equipment
Optional equipment, PR No.: 9M9
Installation position
On the outer right side member
Tasks
• Defrosting the windows • Comfort mode for heated interior
Diagnostic address
18
Data bus communication
• Convenience CAN bus user • J364 is the LIN master of the auxiliary heating radio controlled receiver R64
Special features
• The target time and not the starting time of the auxiliary heater is selected with the remote control • Cannot be replaced separately from the heating unit
J364
610_024
Infotainment Designation
Information electronics control unit 1 J794
Equipment
Standard Audi Radio, PR No.: I8A Optional equipment Versions: • MMI Radio, PR No.: I8B • MMI Navigation plus, PR No.: I8F, 7UG
Installation position
In the glove compartment
Task
Controlling the infotainment systems
Diagnostic address
5F
Data bus communication
• Infotainment CAN bus user • In MMI versions it is connected to the MMI display J685 and the multimedia system operating unit E380 via a private CAN bus
Special features
• In the case of MMI versions, an electrically retractable screen is integrated in the dash panel • If the Bang & Olufsen Sound System and/or TV tuner is fitted, the information electronics control unit 1 J794 is the system manager as well as the ring break diagnostics master for the MOST bus
J794
610_026
20
Sound amplifier Designation
Digital sound package control unit J525
Equipment
Optional equipment for models with Bang & Olufsen Sound System, PR No.: 9VS
Installation position
Under the seat at the front left
Task
Activation of the 14 loudspeakers
Diagnostic address
47
Data bus communication
MOST bus users
J525
610_027
TV tuner Designation
TV tuner R78
Equipment
Optional equipment, PR No.: QV6
Installation position
In the luggage compartment, rear right
Task
TV reception, display in the MMI display J685
Diagnostic address
57
Data bus communication
MOST bus users
Special feature
Availability is country-specific
R78
610_028
21
Electronic Stabilisation Program ESP Designation
ABS control unit J104
Equipment
Always fitted
Installation position
• In the engine bay on the right-hand side of the engine bulkhead in left-hand-drive models • In the engine bay on the left-hand side of the engine bulkhead in right-hand-drive models
Tasks
• • • • • • •
Diagnostic address
03
Data bus communication
Suspension CAN bus user
Special features
• The control unit can be replaced separately from the valve block using ESD protective mat VAS 6613 • The electro-mechanical parking brake is integrated in the ABS control unit. Address word 53 for electromechanical parking brake has been deleted.
Anti lock braking system ABS Electronic Stabilisation Program ESP Traction Control System TCS Electronic Differential Lock EDL Electronic transverse lock Multicollision brake Electro-mechanical parking brake EPB
J104 Valve block
610_029
Power steering Designation
Power steering control unit J500
Equipment
Always fitted
Installation position
Connected to the steering gear
Tasks
• • • •
Diagnostic address
44
Data bus communication
Suspension CAN bus user
Special features
• Control unit with power steering motor and steering angle sender G85 can only be replaced together with the steering gear • G85 has no separate data bus connections; data is transferred via the power steering control unit J500
Power steering Servotronic – speed-dependent power steering Corrective steering intervention in combination with Audi active lane assist and park assist Corrective steering intervention in combination with ESP
J500 610_030
Reference For detailed descriptions of the suspension components refer to SSP 612 "Audi A3 ’13 – Suspension".
22
All-wheel drive Designation
All-wheel drive control unit J492
Equipment
Standard equipment with quattro powertrain
Installation position
Connected to the rear axle gear
Task
Control of the Haldex coupling according to the driving situation
Diagnostic address
22
Data bus communication
Suspension CAN bus user
Special feature
The control can be replaced separately and without removing the rear axle gear
J492
610_031
Parking aid / park assist Designation
Park assist steering control unit J791
Equipment
Optional equipment Versions: • Rear parking aid, PR No.: 7X1 • Parking aid plus, PR No.: 7X2 • Audi parking system, PR No.: 7X5
Installation position
Behind the left-hand dash panel
Tasks
• Reading in the ultrasound sensors and, depending on version, audible or visual obstacle warnings • If the Audi parking system is fitted, it also measures the parking spot and calculates the parking manoeuvre
Diagnostic address
76
Data bus communication
Suspension CAN bus user
Special feature
The diagnostic address is now 76, having been 10 on previous Audi models
J791
610_032
23
Audi magnetic ride Designation
ECD control unit (electronically controlled damping) J250
Equipment
Optional equipment, PR No.: 2H7
Installation position
Under the right-hand front seat
Task
Adaptation of the damping characteristic
Diagnostic address
14
Data bus communication
Suspension CAN bus user
J250
610_033
Engine control unit Designation
Engine control unit J623
Equipment
Always fitted
Installation position
In the engine bay between the battery and e-box
Task
Controlling the engine characteristic
Diagnostic address
01
Data bus communication
• Powertrain CAN bus user • To comply with specific emission standards, the engine control unit J623 is connected to both NOx sender control units via a private CAN bus
Special features
• Control units (petrol engine/diesel engine) have different plug connections • Immobiliser user • Vehicles with an antitheft alarm have an antitheft device (sheet metal cover with shear bolts) over the engine control unit
J623
Shear bolt 1 Antitheft protection Shear bolt 2
610_034
24
Airbag / Audi pre sense basic Designation
Airbag control unit J234
Equipment
• Always fitted • Optional Audi pre sense basic, PR No.: 7W1
Installation position
On the centre tunnel in front of the centre console
Tasks
• Deployment of the airbags • Audi pre sense basic • Deployment of the pedestrian protection system
Diagnostic address
15
Data bus communication
• Powertrain CAN bus user • If Audi pre sense basic is fitted, it is the LIN master for the front left and right belt tensioner control units (J854 and J855 respectively) • In vehicles specified for the North American market, it is the LIN master for the seat occupancy recognition control unit J706
Special feature
It also controls the pedestrian protection system
J234
610_035
S tronic Designation
Mechatronic unit for dual-clutch gearbox J743
Equipment
Optional equipment for vehicles with S tronic
Installation position
On the gearbox
Task
Controling the dual clutch gearbox
Diagnostic address
02
Data bus communication
Powertrain CAN bus user
Special feature
Dual clutch gearbox 0CW (7-speed, see fig.) or dual clutch gearbox 09D (6-speed) is used depending on engine version.
J743
610_036
25
Selector lever sensors Designation
Selector lever sensors control unit J587
Equipment
Optional equipment for vehicles with S tronic
Installation position
On the selector lever
Tasks
• Signalling the selector lever position • Signalling the tiptronic commands
Diagnostic address
81
Data bus communication
Powertrain CAN bus user
Special feature
The control unit can only be replaced together with the selector lever
J587
610_037
Headlight range control on vehicles with bi-xenon headlights Designation
Headlight range control unit J431
Equipment
Optional equipment for models with bi-xenon headlights, PR No.: 8IG
Installation position
Behind the left-hand dash panel
Task
Dynamic headlight range control
Diagnostic address
55
Data bus communication
CAN-Extended bus user
J431
610_039
26
Headlight range control on vehicles with bi-xenon headlights and adaptive light or LED headlights Designation
Adaptive light and headlight range control unit J745
Equipment
Optional equipment for vehicles with: • Bi-xenon headlights with adaptive light, PR No.: 8IM • LED headlights, PR No.: 8EY
Installation position
Behind the left-hand dash panel
Tasks
• Dynamic headlight range control • Controlling the light profiles • Controlling the adaptive light
Diagnostic address
55
Data bus communication
CAN-Extended bus user
Special feature
It is connected to the power modules for the left and right headlights via a private CAN bus
J745
610_038
Audi side assist (lane change warning system) Designation
Audi lane assist control unit J769 Audi lane assist control unit 2 J770
Equipment
Optional equipment, PR No.: 7Y1
Installation position
• In the rear right bumper J769 • In the rear left bumper J770
Task
• To scan the peripheral area behind and to the side of the vehicle • To activate the warning lights in the door mirrors
Diagnostic address
3C
Data bus communication
• J769 (master) CAN-Extended bus user • J770 (slave) connected to J769 via private CAN bus
Special feature
The control units are mounted in the bumper cover. The system must be calibrated after removal and installation.
J770
J769
610_040
27
Headlight assist Designation
Headlight assist control unit J844
Equipment
Optional equipment, PR No.: 8G1
Installation position
In the rear-view mirror
Task
Automatic activation and deactivation of the main beam taking oncoming traffic into consideration
Diagnostic address
20
Data bus communication
CAN-Extended bus user
Special feature
Available with halogen headlights, bi-xenon headlights and LED headlights
J844
610_041
Audi active lane assist (lane departure warning system) Headlight assist Traffic sign recognition Intelligent light system Designation
Front camera for driver assistance systems R242
Equipment
Optional equipment • Audi active lane assist, PR No.: 7Y4 • Camera-based traffic sign recognition, PR No.: QR9 • Intelligent light system, PR No.: 8G2
Installation position
On the windscreen, above the base of the interior rear-view mirror
Task
Scanning and imaging of traffic, traffic signs and lane markers
Diagnostic address
A5
Data bus communication
CAN-Extended bus user
Special feature
Camera-based traffic sign recognition requires MMI Navigation plus and colour driver information display
R242
610_042
28
Exterior lighting Light switch
Headlight range control adjuster E102
The light switch of the Audi A3 ’13 is a LIN slave of the onboard power supply control unit J519. The operating concept with the rotary switch and the control panel for the fog lights and/or rear fog light has been adapted to the Audi model range. The headlight range adjuster is fitted in models with halogen headlights only.
Designation
Light switch E1
Equipment
Always fitted
Installation position
Dash panel, driver side
Task
To indicate the driver's preferred light setting to the onboard power supply control unit
Diagnostic address
Control panel
Rotary switch
Display and instrument lighting controller
None, LIN slave, measurement values and diagnostics via onboard power supply control unit J519 (master)
610_045
Function Rotary switch: 0
Lights off (in some countries the daytime running light is switched on automatically at "terminal 15 on")
AUTO
The automatic daytime running light is switched on and off depending on the light sensor (this position is also prerequisite for the "headlight assist" and "intelligent light system" functions)
Upper control panel: Fog light All-weather light in vehicles with LED headlights
Lower control panel:
Parking light
Rear fog light
Dipped beam
Electrical connections and circuit The four positions of the rotary switch, button operations and the position of the instrument lighting controller are read in by the onboard power supply control unit J519 via the LIN line. In addition, all commands for the switch lighting and the warning lamps of the individual functions are sent to the light switch by the onboard power supply control unit. The redundancy line is used to determine the plausibility of the switch positions. In the event of a short circuit or an open circuit in the LIN line or redundancy line, the emergency light function is activated by the onboard power supply control unit ("dipped beam on") and a diagnostic trouble code is entered in the fault memory of the onboard power supply control unit. The headlight range adjuster E102 is integrated in the light switch housing but is a separate component. Its information is transmitted to the headlight range control servomotors via a discrete line.
Light switch E1
Headlight range control adjuster E102
610_046
Connections of E1:
Connections of E102:
Pin 1
LIN
Pin 1
Terminal 30
Pin 2
Terminal 30
Pin 2
Terminal 31
Pin 3
Terminal 31
Pin 4
Redundancy line
Pin 4
Activation of the headlight range control servomotors
29
Headlights In the case of the Audi A3 ’13, a distinction is made between headlight versions: • • • •
Halogen headlight / ECE1) and SAE2) Bi-xenon headlight / ECE1) and SAE2) Bi-xenon headlights with adaptive light, ECE1) only LED headlight / ECE1) and SAE2)
To remove headlights, the bumper cover must first be taken off. In addition to the headlight end caps, the parts shown in the diagrams can be replaced. In the event of damage to the upper and inner headlight attachments, repair tabs can be attached to the headlight housing.
Halogen headlight PR no.: 8ID
Left parking light bulb M1
Left main beam bulb M30 Daytime driving light bulb, left L174
Left headlight range control servomotor V48
Turn signal bulb, front left M5
Sidemarker2)
Left dipped beam bulb M29
610_047
Light functions
Illuminants used
Power
Daytime running light
Bulb H15
15 watts
Parking light
Bulb W5W
5 watts
Dipped beam
Bulb H7LL
55 watts
Main beam
Bulb H15
55 watts
Bulb PSY24W
24 watts
LED
0.6 watts
Turn signal Sidemarker
2)
Activation mechanism
Adaptation for driving on opposite side of road
In the case of halogen headlights, the various light functions are activated by the onboard power supply control unit J519. The daytime running lights are dimmed for the duration of the turn signalling cycle (in the SAE2) version they are switched off ). The halogen headlights can be combiend with a headlight assist system.
It is not necessary to adapt the headlights. No further action is needed to meet the statutory requirements.
1) 2)
ECE = for the European market SAE = for the North American market
30
Bi-xenon headlight PR no.: 8IG In the case of the bi-xenon headlight, the component parts shown here can be replaced.
Exception: The LED module with its 2 LEDs for daytime running lights and parking light. In the event of a fault in this module, the headlight must be replaced.
Left gas discharge lamp L13 Left headlight range control servomotor V48
Turn signal bulb, front left M5 Sidemarker2)
Left LED module for daytime running lights and parking light L176
Left gas discharge lamp control unit J343 Left daytime running light and parking light control unit J860
610_048
Light functions
Illuminants used
Power
Daytime running light
2 LEDs with plastic optical fibres
18 watts
Parking light
dimmed to approx. 25 %
Dipped beam
Gas discharge lamp D3S
35 watts
Bulb PSY24W
24 watts
LED
0.6 watts
Main beam (change-over by shutter) Turn signal Sidemarker
2)
Activation mechanism
Adaptation for driving on opposite side of road
In the case of bi-xenon headlights, the various light functions are activated by the onboard power supply control unit J519. The daytime running lights are dimmed for the duration of the turn signalling cycle (in the SAE2) version they are switched off ). The left and right dipped beam shutter motors (V294 and V295 respectively) are used for changing over between low beam and high beam. The bi-xenon headlight can be combined with a main beam assist system (PR No.: 8G1).
It is not necessary to adapt the headlights. No further action is needed to meet the statutory requirements.
31
Bi-xenon headlight with adaptive light PR no.: 8IM Implementation of different light functions In the case of the bi-xenon headlight with adaptive light, a rotating roller is fitted between the gas discharge lamp and the lens. The roller has different profiles around its circumference. The various light functions are obtained by rotating the roller using the variable front lighting servomotors. In addition, the complete projection module - comprising the reflector, lens, gas discharge lamp and roller - can be swivelled sideways by the dynamic adaptive light servomotors (not shown) to produce the adaptive light. The bi-xenon headlight with adaptive light is not available for the North American market.
In the case of the bi-xenon headlight, the component parts shown here can be replaced. The following inner components of the headlight cannot be replaced separately: • • • • •
LED module for daytime running lights and parking light Sender for variable front lighting servomotors Swivel module position sensors Variable front lighting servomotors Dynamic adaptive light servomotors
Left gas discharge lamp L13
Left adaptive light bulb L148
Left headlight range control servomotor V48 (concealed in diagram)
Turn signal bulb, front left M5 Roller for light functions
Left variable front lighting servomotor V446 Left LED module for daytime running lights and parking light L176 Left gas discharge lamp control unit J343
Headlight power module, left J667
Left daytime running light and parking light control unit J860
610_049
Light functions
Illuminants used
Power
Daytime running light
2 LEDs with plastic optical fibres
18 watts
Parking light
dimmed to approx. 25 %
Dipped beam (profile on roller)
Gas discharge lamp D3S
35 watts
Bulb H8
35 watts
Bulb PSY24W
24 watts
Main beam (change of profile on roller) Motorway light (change of profile on roller) Town light (change of profile on roller and slight swivelling of projection modules) Tourist light (change of profile on roller) Adaptive light (swivelling of the projection module) Cornering light (activated on one side) Intersection light3) (activated on both sides) Turn signal 32
Bi-xenon headlights with adaptive light and "intelligent light system" PR no.: 8G2 The optional "intelligent light system" can be ordered in addition to the bi-xenon headlights with adaptive light. The intelligent light system function also requires the front camera for driver assistance systems R242 in order to monitor the current traffic situation. Oncoming vehicles, vehicles driving ahead and built-up areas are detected by the camera. Depending on the current traffic situation, the intelligent light system continuously adjusts the headlight range between dipped and main beam.
610_050
Front camera for driver assistance systems R242
Light functions
Illuminants used
Power
Daytime running light
2 LEDs with plastic optical fibres
18 watts
Parking light
dimmed to approx. 25 %
Country road light (profile on roller)
Gas discharge lamp D3S
35 watts
Bulb H8
35 watts
Bulb PSY24W
24 watts
Main beam (change of profile on roller) Motorway light (change of profile on roller) Town light (change of profile on roller and slight swivelling of projection modules) Tourist light (change of profile on roller) Adaptive light (swivelling of the projection module) Cornering light (activated on one side) Intersection light3) (activated on both sides) Turn signal
Adaptation for driving on opposite side of road Both in the case of the bi-xenon headlight with adaptive light and the bi-xenon headlight with adaptive light and intelligent light system, the headlight can be changed over for driving on the opposite side of the road by rotating the roller through 180°. These headlights can be completely changed over, i.e. the roller has all the required light profiles for both left and right hand drive. This means that only one hardware version of this headlight is needed.
The tourist light is activated in the MMI. In the CAR menu, the setting "Lights for driving on left" or "Lights for driving on right" can be selected under the menu option "Exterior lighting". In models fitted with a navigation system, the headlights are changed over automatically when crossing international borders, if necessary.
ECE = for the European market SAE = for the North American market 3) models with navigation only 1) 2)
33
LED headlights PR no.: 8EY In the case of the LED headlights, all light functions are performed by LEDs. No fog lights are fitted in models equipped with LED headlights.
Left headlight range servomotor
Parking light / daytime running light / turn signal
The all-weather light function is available as a substitute. However, this function is confined to the ECE1) version due to statutory requirements and is not available in the SAE2) version.
Cornering light
Left headlight fan
Dipped beam Sidemarker2) Main beam
LED control unit (Parking light, daytime running light, turn signal, sidemarker2))
Headlight range control power module LED power module (Dipped beam, main beam, cornering light, fan activation)
610_051
Light functions
Illuminants used
Power
Daytime running light
4 LEDs (1x 3 LED chip, 1x 1 LED chip)
14 watts
Parking light
dimmed to approx. 15 %
Dipped beam
9 LEDs (2x 5 LED chip, 2x 2 LED chip)
41 watts
Main beam
8 LEDs (2x 4 LED chips)
36 watts
Cornering light
4 LEDs (2x 2 LED chips)
18 watts
Intersection light3)
LEDs of both cornering lights
36 watts
Turn signal
4 yellow LEDs (1x 3 LED chip, 1x 1 LED chip)
16 watts
LED
0.6 watts
All-weather light Motorway light
Sidemarker
2)
When the all-weather light function is active, several LEDs are switched off (shortening the headlight range and reducing the self-dazzle effect) and the cornering lights are switched on. The motorway light is produced by raising the light beam level using the headlight range control function. In the case of the intersection light, both cornerning lights are switched on (models with navigation only). None of these three light functions is legal for the North American market.
1) 2)
ECE = for the European market SAE = for the North American market
34
Adaptation for driving on opposite side of road It is not necessary to adapt the headlights. No further action is needed in order to meet the statutory requirements.
3)
models with navigation only
Fog light PR no.: 8WB The Audi A3 ’13 can be fitted with fog lights. These are integrated in the bumper and equipped with a 35 watt H8 bulb. The fog lights are activated directly by the onboard power supply control unit J519.
To replace the bulb, first the air intake grille and then the fog light must be removed from the bumper.
Fog light bulb, left L22
610_052
Overview of light functions The descriptions of the individual headlights specify which light function is available for which headlight version.
Country road light The country road light is an asymmetric light. It is activated when a driving speed of 50 kph is exceeded. In models equipped with a navigation system, the country road light is active unless the system has detected a built-up area or motorway driving. With the country road light function, the adaptive light may additionally be active.
610_053
Motorway light The motorway light is an asymmetrical light which illuminates the oncoming lane slightly better than the country road light. The motorway light is activated if the vehicle exceeds 110 kph for an extended period, and immediately if a speed of 130 kph is exceeded. In models equipped with a navigation system, the motorway light is activated when the vehicle is travelling faster than 80 kph and the navigation system recognises motorway driving.
610_054
Main beam The main beam is a symmetrical light. It can be activated by operating the main beam stalk, the main beam assist function or the intelligent light system. 610_055
35
Adaptive light The adaptive light adapts to the curvature of the corner depending on vehicle speed and steering angle, thereby illuminating the corner better. This function is active in a speed range of 10 kph to 110 kph. 610_056
Town light The town light is a symmetrical close-range light. It is activated at speeds of between 5 kph and 50 kph in models equipped with a navigation system if the navigation system detects a built-up area. The adaptive light cannot swivel when the "town light" function is active.
610_057
Cornering light The cornering light is produced by activating the G8 bulbs on one side in the bi-xenon headlights with adaptive light. The following conditions must be met in order to activate the cornering light: • sharp steering angle and driving speed of less than 70 kph or • activated turn signal and driving speed of less than 40 kph It is activated in addition to the country road light and the town light.
610_058
Intersection light The light function "Intersection light" is also available for models equipped with a navigation system. The intersection light is produced by switching on both cornering lights. It helps the driver to detect hazards from the side at road intersections and is activated ahead of the intersection.
Intersection light
36
The intersection light is always lit in combination with other lights. It is activated in conjunction with the town light while driving in built-up areas (see diagram below) and in conjunction with the country road light while driving on country roads.
Cornering light
610_059
Headlight range control Manual headlight range control Models with halogen headlights are equipped with a manual headlight range control system. Here, the driver is responsible for correct adaptation of the headlight range to the vehicle's load condition.
The headlight range adjuster E102 is integrated in the light switch housing, above the instrument lighting adjuster. It is supplied by terminal 15 and terminal 31 and activates both headlight range control servomotors via a discrete line.
Convenience CAN bus
Schematic diagram of the activation mechanism for halogen headlights
Terminal 15
Halogen headlight (left-hand side of vehicle)
Left parking light bulb M1 Left daytime running light and parking light bulb L186 Left dipped beam bulb M29 Left main beam bulb M30 Turn signal bulb, front left M5
Discrete lines Onboard power supply control unit J519
Headlight range control adjuster E102
Headlight range control servomotor V48
Discrete line
Terminal 31
610_060
Dynamic headlight range control Audi A3 ’13 vehicles with gas discharge headlights or LED headlights are equipped with a dynamic headlight range control system. Depending on the altitude and movement of the vehicle, headlight range control servomotors V48 and V49 correct the range of the headlights.
The headlight range control configurations described below are available for the bi-xenon headlights and the bi-xenon headlights with adaptive light.
Extended CAN bus
Convenience CAN bus
Schematic diagram of the activation mechanism for bi-xenon headlights
Bi-xenon headlight (left-hand side of vehicle)
Discrete lines Onboard power supply control unit J519
Headlight range control unit J431
Left daytime running light and parking light control unit J860 Turn signal bulb, front left M5 Left gas discharge lamp control unit J343
Discrete lines Headlight range control servomotor V48
Discrete line Rear left vehicle level sender G76 610_061
37
Convenience CAN bus
Schematic diagram of the activation mechanism for bi-xenon headlights with adaptive light
Bi-xenon headlight with adaptive light (left-hand side of vehicle) Discrete lines Left daytime running light and parking light control unit J860 Turn signal bulb, front left M5 Left gas discharge lamp control unit J343
Onboard power supply control unit J519
Power output module for left headlight J667
Extended CAN bus
Adaptive light and headlight range control unit J745
Private CAN bus (sub-bus)
Discrete lines
Discrete lines
Rear left vehicle level sender G76
Headlight range control servomotor V48 Left dynamic adaptive light control servomotor V318 Left variable front lighting servomotor V446 Left adaptive light bulb L148 Front left vehicle level sender G78
610_062
Extended CAN bus
Convenience CAN bus
Schematic diagram of the activation mechanism for LED headlights
LED headlights (left-hand side of vehicle) Discrete lines Onboard power supply control unit J519
Adaptive light and headlight range control unit J745
Private CAN bus (sub-bus)
LED control unit (Parking light and daytime running light / turn signal) (Sidemarker with SAE1))
LED power module (Dipped beam, main beam and cornering light)
Discrete lines Discrete line
Rear left vehicle level sender G76
Left headlight fan
Headlight range control power module
Discrete lines Left headlight range control servomotor
610_063 1)
SAE = for the North American market
38
Headlight range control in vehicles with wheel damping electronics The Audi A3 ’13 can optionally be equipped with wheel damping electronics. These vehicles have four senders for monitoring the vehicle's ride height. They are read in via discrete lines in the electronically controlled damping control unit J250.
The electronically controlled damping control unit J250 is a suspension CAN user and transfers information on vehicle ride height via the data bus to the installed headlight range control unit (varies depending on headlight version).
Schematic diagram of the activation mechanism for vehicles with wheel damping electronics
Headlight range control unit J4311)
Data bus diagnostic interface J533
Discrete line
Adaptive light and headlight range control unit J7452)
Private CAN bus (sub-bus)
Headlight range control servomotors1)
Power module for headlights2)
Extended CAN bus
Suspension CAN bus
Discrete line Headlight range control servomotors2)
Adaptive light and headlight range control unit J7453)
Private CAN bus (sub-bus)
Power module for headlight range adjustment3)
Discrete line
Headlight range control servomotors3)
ECD control unit (electronically controlled damping) J250
Discrete lines
Front left vehicle level sender G78
Front right vehicle level sender G289
Rear left vehicle level sender G76
Rear right vehicle level sender G77
610_064
with bi-xenon headlights with bi-xenon headlights with adaptive light 3) with LED headlights 1) 2)
39
Tail lights In the Audi A3 ’13 the light functions of the rear lighting are distributed to the tail lights in the rear end and the tail lights in the rear hatch.
A distinction is made between the following versions of the tail lights: • Basic tail lights (in combination with halogen headlights) • LED tail lights (in combination with bi-xenon headlights, bi-xenon headlights with adaptive light and LED headlights) The onboard power supply control unit J519 activates the tail lights irrespective of version.
Basic tail light PR no.: 8SA
Brake/tail light 1
Turn signal
Tail light 2
Brake/tail light 3
610_065
Reversing light
Light functions
Illuminants used
Activation mechanism
Power
Brake light Tail light 1
Bulb W21W
100 % 21 %
21 watts approx. 5 watts
Tail light 2
Bulb W16W
31 %
approx. 5 watts
Rear fog light Tail light 3
Bulb H21W
100 % 10 %
21 watts approx. 2 watts
Turn signal
Bulb PY21W
100 %
21 watts
Reversing light
Bulb H6W
100 %
6 watts
The tail lights are also activated if the vehicle is equipped with a Coming Home / Leaving Home function. The rear fog light and the reversing light are deactivated when the rear hatch is open.
40
The rear hatch light bulbs can be accessed by a service flap. The side light must be removed in order to replace a bulb.
LED tail light PR no.: 8SK
Turn signal
Reversing light
Brake light
Rear fog light
610_066
Tail light
Light functions
Illuminants used
Activation mechanism
Power
Brake light
9 LEDs
100 %
approx. 3.5 watts
Tail light
2 LEDs with plastic optical fibres
100 %
approx. 2 watts
Rear fog light
Bulb H21W
100 %
21 watts
Turn signal
20 LEDs
100 %
approx. 3.5 watts
Reversing light
Bulb H6W
100 %
6 watts
The tail lights are also activated if the vehicle is equipped with a Coming Home / Leaving Home function. The rear fog light and the reversing light are deactivated when the rear hatch is opened.
The bulbs of the rear hatch light can be accessed via a service flap. LEDs cannot be replaced. If faulty, the tail light in question must be replaced.
41
High-level brake light The high-level brake light is integrated in the rear spoiler and, comprising a total of 48 LEDs, provides additional brake lighting.
The component parts of the high-level brake light cannot be replaced. If faulty, the complete component must be replaced. This is only possible after removing the rear spoiler.
High level brake light bulb M25 610_067
Number plate lights The number plate lights on the Audi A3 ’13 use LED technology irrespective of tail light version. Both number plate lights are clipped into the rear hatch panel, and each has two LEDs. As with the high-level brake light, they are activated by the onboard power supply control unit J519.
610_068
42
Annex Self Study Programmes For further information about the technology of the Audi A3 ’13, refer to the following Self Study Programmes.
610_075
610_076
610_077
SSP 238 Data exchange on the CAN bus I, order number: 140.2810.57.20 SSP 269 Data exchange on the CAN bus II, order number: 140.2810.88.20 SSP 286 Audi New data bus systems – LIN, MOST, BluetoothTM, order number: 000.2811.06.20
610_078
610_079
610_080
SSP 609 Audi A3 ’13, order number: A12.5S00.93.20 SSP 611 Audi A3 ’13 Vehicle Electronics and Driver Assistance Systems, order number: A12.5S00.95.20 SSP 612 Audi A3 ’13 Suspension, order number: A12.5S00.96.20
43
610
Audi Vorsprung durch Technik
Self Study Programme 610 For internal use only
Audi A3 ’13 Onboard Power Supply and Networking
All rights reserved. Technical specifications are subject to change. Copyright AUDI AG I/VK-35
[email protected] AUDI AG D-85045 Ingolstadt Technical status 04/12 Printed in Germany A12.5S00.94.20
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