SSP 970153

eSelf Study Program 970153
The 2016 Audi TT Vehicle Electrics,
Electronics, and Infotainment Systems
i
Audi of America, LLC
Service Training
Created in the U.S.A.
Created 05/2015
Course Number 970153
©2015 Audi of America, LLC
All rights reserved. Information contained in this manual is based on
the latest information available at the time of printing and is subject to
the copyright and other intellectual property rights of Audi of America,
LLC., its affiliated companies and its licensors. All rights are reserved to
make changes at any time without notice. No part of this document
may be reproduced, stored in a retrieval system, or transmitted in any
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or otherwise, nor may these materials be modified or reposted to other
sites without the prior expressed written permission of the publisher.
All requests for permission to copy and redistribute information should
be referred to Audi of America, LLC.
Always check Technical Bulletins and the latest electronic service repair
literature for information that may supersede any information included
in this booklet.
This eSSP contains video links which you
can use to access interactive media.
Revision 1: 5/2015
ii
Introduction ...................................................................................... 1
Power supply...................................................................................... 2
Battery ........................................................................................................................................................................2
Positive battery cable ................................................................................................................................................2
Fuses, fuse holder and jump start terminal ...........................................................................................................4
Networking......................................................................................... 6
Topology .....................................................................................................................................................................6
Overview of bus systems ...........................................................................................................................................8
New features of the bus systems .............................................................................................................................8
Optical bus system MOST150 ...................................................................................................................................9
Special tool .................................................................................................................................................................9
Control units..................................................................................... 10
Brief descriptions .................................................................................................................................................... 10
Exterior lights................................................................................... 26
Headlights ............................................................................................................................................................... 26
Headlight range adjustment .................................................................................................................................. 28
Tail lights ................................................................................................................................................................. 29
High-level brake light / license plate light ........................................................................................................... 30
Vehicle electronics............................................................................ 31
Car key ..................................................................................................................................................................... 31
Keyless starting system ......................................................................................................................................... 31
Terminal 15 power supply ..................................................................................................................................... 32
Advanced Key .......................................................................................................................................................... 34
Implementation of keyless entry and start systems at Audi ............................................................................. 34
System processes in the keyless start system ..................................................................................................... 36
System processes in the keyless entry system (Advanced key) ......................................................................... 42
Immobilizer ............................................................................................................................................................. 45
Electronic Steering Column Lock Control Module J764 ....................................................................................... 46
Electrical rear spoiler ............................................................................................................................................. 47
Overhead module ................................................................................................................................................... 48
Interior light ............................................................................................................................................................ 50
Infotainment.................................................................................... 52
Overview of versions ............................................................................................................................................... 52
Second-generation MIB High ................................................................................................................................. 54
MMI radio ................................................................................................................................................................ 55
MMI radio with connectivity package .................................................................................................................. 56
MMI Navigation plus .............................................................................................................................................. 57
Audi connect ........................................................................................................................................................... 58
Networking .............................................................................................................................................................. 59
Display and operating concept .............................................................................................................................. 60
Control panel ........................................................................................................................................................... 61
Sound systems ........................................................................................................................................................ 63
Antenna overview ................................................................................................................................................... 66
Self study programs......................................................................... 70
Knowledge Assessment................................................................... 71
This eSelf Study Program teaches a basic knowledge of the design and functions of new models,
new automotive components or technologies.
It is not a Repair Manual! All values given are intended as a guideline only.
For maintenance and repair work, always refer to the current technical literature.
Note
Reference
iii
iv
Introduction
All versions of the new Audi TT come with a generous range
of standard equipment.
On the infotainment front, customers can choose from a
wide range of options. The connectivity package features
the MMI touch system incorporating a touch-sensitive
touch pad. At the top of the modular range is the MMI
Navigation plus with its large flash memory, two card
readers, DVD drive, Bluetooth interface and voice control
system. The T30 chip from the Tegra 3 series by market
leader Nvidia, which is installed in the new-generation
Modular Infotainment System, controls all in-car navigation and multimedia functions and displays content in the
Audi virtual cockpit.
The Audi connect system complements the MMI Navigation
plus perfectly – it connects the new Audi TT to the internet
using the high-speed LTE transmission standard. The integrated Wi-Fi hotspot means passengers can surf the internet and E-mail as they please, while the driver can rely on
the customized Audi connect services.
An optional Bang & Olufsen Sound System features a
14-channel amplifier and 12 loudspeakers; the bass
loudspeakers in the doors are illuminated discretely by
fiber optics.
Highly intelligent assistance systems make driving the new
TT an even more pleasurable experience. As an option, the
car can be equipped with Audi side assist, which uses rearmounted radar sensors to help drivers change lane more
safely.
1
Power supply
Battery
The battery of the Audi TT is housed in the rear of the
vehicle. Battery size and type are dependent on engine
version, trim and country specification.
Battery Monitoring Control Module J367 (BDM) is mounted
on the negative battery terminal. If the battery is replaced
it must be adapted (encoded) to J367 using the VAS Scan
Tool.
Attached to the battery positive terminal is the main fuse
box and Battery Interrupt Igniter N253.
Positive battery cable
The positive battery cable is an advanced aluminum ribbon
cable with high flexural rigidity. It is coated with a red
plastic insulating layer.
Apart from its light weight, this type of main battery lead
has other advantages as well:
• Because of the shape and rigidity of the rail, there is no
need for additional routing devices.
• No cable ducts are required.
• More efficient use is made of available space.
2
629_002
The positive battery cable leaves the battery positive terminal as a flexible, round-section lead. It is routed out of the
vehicle interior through a cable sleeve, becoming a ribbon
cable in the rear axle area and ending at the jump start
terminal on the left hand side of the engine compartment.
From there, wires go to the E-box, starter and alternator.
3
Fuses, fuse holder and jump start terminal
In addition to standard flat fuses, space saving mini-fuses
and circuit breakers (thermal fuses), the TT uses the new
J-Case fuse like those of the 2015 Audi A3.
These fuses are, like the standard and mini fuses, identified
in different colors.
J-Casefuses
629_003
Fuse rail on the E-box
Fuses are marked “SA” in
the Wiring Diagrams.
Jump start connection
Several fuses with different ratings are grouped together to form a fuse
strip or multi-fuse. The fuses protect the alternator, electromechanical
power steering and the radiator fans. In the event of a fault, the complete
multi-fuse must be replaced.
4
E-box with fuses and relays
Fuses are marked “SB” in
the Wiring Diagrams.
Fuse holder at battery positive terminal. Fuses are marked “S” in the
Wiring Diagrams. Battery Interrupt
Igniter N253 also located here.
629_004
Fuse holder and relay panel under
the instrument panel.
Fuses are marked "SR" in the Wiring
Diagrams.
Fuse holder and relay panel under
the instrument panel, left.
Fuses are marked “SC” in the Wiring
Diagrams.
5
Networking
Topology
Light Switch E1
Alarm Horn
H12
Anti-theft Alarm
System Sensor
G578
Garage Door
Opener Control
Head E284
Wiper Motor
Control Module
J400
Rain/Light
Recognition Sensor
G397
Humidity Sensor
G355
Vehicle Electrical
System Control
Module 1
J519
Garage Door
Opener Control
Module
J530
Steering Column
Electronics Control
Module
J527
Drive Multi-contour
Seat Control Module
J873
Driver Door Control
Module
J386
Front Passenger
Multi-contour Seat
Control Module
J872
Front Passenger
Door
Control Module
J387
Driver Volume
Control
E67
Left Head Area
Heater
Control Module
J846
Electronic Steering
Column Lock
Control Module
J764
Data Bus On Board Diagnostic Interface J533
Right Head Area
Heater
Control Module
J847
Access/Start
Authorization
Control Module
J518
Selector Lever
Sensor System
Control Module
J587
ABS/ESP Control
Module
J104
Engine Control
Module
J623
Electronic Damping
Control Module
J250
Convertible Top
Control Module
J256
(Roadster only)
Multi-media
System Control
Head
E380
Front A/C Display
Control Head 1
E774
Climatronic Control
Module
J255
DSG Transmission
Mechatronic
J743
All Wheel Drive
Control Module
J492
Front A/C Display
Control Head 2
E775
Fresh Air Blower
Control Module
J126
Structure Borne
Sound Control
Module
J869
Power Steering
Control Module
J500
Front A/C Display
Control Head 3
E776
Refrigerant System
Pressure Sensor
G805
Airbag Control
Module
J234
Parking Aid Control
Module
J446
Front A/C Display
Control Head 4
E777
Humidity Sensor in
Fresh Air Intake
Duct
G657
Front A/C Display
Control Head 5
E778
6
Instrument Panel
Control Module
J285
Air Quality Sensor
G238
Passenger
Occupant Detection
System Control
Module J706
The topology shows all control modules with connectivity
to the bus systems.
Some of the control modules shown here are optional or
country-specific equipment or due to be introduced at a
later date.
Digital Sound
System Control
Module
J525
Automatic High
Beam Assist
Control Module
J844
or
Information
Electronics Control
Module 1
J794
Rearview Camera
System Control
Module
J772
Driver Assistance
Systems Front
Camera
R242
Seat Belt Microphone Control
Module
J886
Lane Change
Assistance Control
Module
J769
Battery Monitoring
Control Module
J367
Lane Change
Assistance Control
Module 2
J770
Headlamp Range
Control Module
J431
Data Link Connector
or
Alternator
C
Cornering Lamp and
Headlamp Range
Control Module
J745
Multi-Function
Steering Wheel
Control Module
J453
Left LED Headlamp
Power Output
Module 1
A31
Right LED Headlamp
Power Output
Module 1
A27
Left Headlamp
Power Output
Stage
J667
Right Headlamp
Power Output
Stage
J668
Parallel Parking
Assistance Control
Module
J791
or
631_062
Key:
Powertrain CAN bus
Infotainment CAN bus
LIN bus
Convenience CAN bus
Diagnostics CAN bus
Sub-bus systems
Extended CAN bus
"OR" configuration
Suspension CAN bus
Modular infotainment system (MIB)
MOST bus
7
Overview of bus systems
Bus system
Cable
color
Configuration
Max. data transfer rate
Property
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
Modular infotainment system CAN
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
Capable of single-wire
operation
Electrical
two-wire bus system
500 kbit/s
Not single wire
capable
Sub-bus system
New features of the bus systems
• The convenience CAN and the infotainment CAN
in the Audi TT are high-speed bus systems.
• J533 interface is not integrated into the MOST bus.
• New CAN bus: Modular Infotainment System (MIB) CAN.
• Information Electronics Control Module 1 J794 is the
system and diagnostic manager for the MOST bus.
• New MOST bus: MOST150.
• Instrument Cluster Control Module J285 is a convenience CAN bus user and a MOST150 user, and is connected to Information Electronics Control Module 1 J794
via the Modular Infotainment System CAN.
• Information Electronics Control Module 1 J794 is connected to the Multi-media System Operating Button
E380 and Instrument Cluster Control Module J285 via
the Modular Infotainment System CAN via the Modular
Infotainment System CAN.
• The Data Bus On Board Diagnostic Interface J533 is the
master of LIN slave Multi-function Steering Wheel
Control Module J453.
The networking diagram on the previous pages provide a
schematic overview of the communication paths of the
in-car control modules.
Which control modules are installed in the vehicle depends
on its optional equipment level.
8
Here are a two examples:
• Automatic High Beam Assist Control Module J844 is
never installed together with Drive Assistance Systems
Front Camera R242.
• Passenger Occupant Detection System Control Module
J706 is only used in the North American Region.
Optical bus system MOST150
History
The MOST optical data bus was installed first in the 2004
Audi A8.
The data bus system is named after the Media Oriented
Systems Transport (MOST) Cooperation. This organization is
composed of various automobile manufacturers, their component suppliers and software companies who joined forces
to create a standardized 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 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 approximately 25 Mbit/s.
MOST150
An advancement of the MOST technology, MOST150, was
first introduced in North America in the 2015 Audi A3.
MOST150 is six times faster than the MOST25 bus.
The development process necessitated making various
modifications to the components of the MOST bus.
For example, the transmitter and receiver units - Fiber
Optical Transmitters (FOT) - had to be adapted.
Other components such as optical connectors, the fiber
optic cables and the electrical connectors of the control
modules are identical to those of the MOST25 system.
System manager
TV tuner R78*
*not for US
Up to four control modules are integrated into the MOST
bus in the Audi TT:
• Information Electronics Control Module 1 - J794.
• Instrument Cluster Control Module J285.
• TV tuner R78 (not used in the North American market).
Instrument Cluster
Control Module
J285
Digital Sound System
Control Module J525
• Digital Sound System Control Module J525.
Information Electronics Control Module 1 J794 serves two
functions:
•
It is the system manager for the MOST bus.
•
It is the diagnostic manager replacing Data Bus On
Board Diagnostic Interface J533.
Information
Electronics Control
Module 1 J794
629_006
Special tool
Diagnostics
The ring break diagnosis procedure is identical to that of
the MOST25 bus system. However, the Test Plans are found
under Address Word 5F on the VAS Scan Tool.
Even though the ring break diagnosis procedure remains
unchanged, a modified tool – VAS 6778 – must be used in
the event of an optical fault in the MOST150 bus because
the transmitter and receiver units in the control modules
have been modified.
629_007
9
Control units
Brief descriptions
Onboard power supply control unit
Designation
Vehicle Electrical System Control Module 1 J519
Equipment
Always installed
Installation location
Under the instrument panel, left-hand side
•
•
•
•
•
•
Tasks
Central locking master
Exterior light master
Interior light master
Anti-theft alarm / optional equipment master, PR No.: 7AL
Activation of various relays
Activation of various convenience components:
• Seat heaters
• Heated windshield washer spray jets
• Windshield washer pump
• Headlight washer system pump
• Monitoring various switches and buttons
• Monitoring various sensors
Address Word
09
Data bus communication
• Convenience CAN bus user
• J519 is the LIN master for:
• LIN 1 – Rain/light Recognition Sensor G397, Humidity Sensor G355,
Wiper Motor Control Module J400 and Light Switch E1
• LIN 2 – Alarm Horn H12
• LIN 3 – Anti-theft Alarm System Sensor G578 and
Garage Door Opener Control Head E284
• LIN 4 – Garage Door Opener Control Module J530; Front Driver and Passenger Multi-contour
Seat Control Modules J872 and J873
Special feature
Duplicated pins on LIN 1 and on LIN 4
Description on the next page
J519
629_008
Reference
For a detailed description of Vehicle Electrical System Control Module 1 J519, see eSelf-Study Program 970343, The 2015
Audi A3 Vehicle Electronics and Driver Assistance Systems.
10
Duplicated pins on J519
LIN 1 is distributed to two pins at J519 (duplicated pin).
Wiper Motor Control Module J400 is connected to pin B30.
Connected to pin C28 are the Light Switch E1 and the
combination sensors Rain/Light Recognition Sensor G397
and Humidity Sensor G355. This means that the control
modules connected to pin C28 are also affected in the
event of a short circuit to positive or negative at pin B30.
Rain/Light Recognition Sensor
G397
LIN 4 is also distributed to two pins on Vehicle Electrical
System Control Module 1 J519. Garage Door Opener
Control Module J530 is connected to pin B29. The MultiContour Seat Control Modules J872 and J873 are both
connected to pin A42. This means that the control modules
connected to pin A42 are also affected by a short circuit to
positive or negative at pin B29, and vice versa.
Humidity Sensor
G355
Light Switch
Alarm Horn
H12
E1
Wiper Motor Control Module
J400
C28
B31
B30
LIN branch 1
LIN branch 2
Vehicle Electrical System
Control Module 1 J519
LIN branch 4
LIN branch 3
A15
A42
Garage Door Opener
Control Head
E284
Front Passenger Multi-contour
Seat Control Module
J872
Anti-theft Alarm System Sensor
G578
Driver Multi-contour Seat
Control Module
J873
B29
Garage Door Opener Control
Module
J530
629_009
11
Gateway
Designation
Data Bus On Board Diagnostic Interface J533
Equipment
Always installed
Installation location
Under the instrument panel, left-hand side
Tasks
•
•
•
•
Address Word
19
Data bus communication
• User of all CAN bus systems
• LIN master of Battery Monitoring Control Module J367 and the Alternator
• LIN master of Multi-function Steering Wheel Control Module J453
Special feature
Not a MOST bus user
Network system gateway
Diagnostic master (with the exception of MOST150 bus)
Energy management system control
Multifunction steering wheel master
J533
629_010
Audi virtual cockpit
Designation
Instrument Cluster Control Module J285
Equipment
Always installed
Installation location
In the instrument panel (not integrated with Audi virtual cockpit)
Tasks
• Display of information relevant to the driver
• Immobiliser master
Address Word
17
Data bus communication
Convenience CAN bus user and MOST150 user and connected to the
Information Electronics Control Module 1 - J794 via the Modular Infotainment System CAN
Special feature
Also displays all content shown on the MMI screen in other vehicles
J285
629_011
For a detailed description of the Audi virtual cockpit, please refer to eSelf Study Program 910153 "Audi Virtual Cockpit".
12
Steering column electronics
Designation
Steering Column Electronics Control Module J527
Equipment
Always installed
Installation location
On the steering column
Task
• Connecting the steering column stock and the electrical components in the steering
wheel to the vehicle electronics
Address Word
16
Data bus communication
Convenience CAN bus user
Special feature
Transfers the LIN signals from Data Bus On Board Diagnostic Interface J533 (master) to the Multifunction Steering Wheel Control Module J453 (slave)
Data Bus On Board Diagnostic Interface J533
Steering Column Electronics Control Module J527
J527
Spiral Spring F350
Multi-function Steering Wheel Control Module J453
629_012
629_013
Sound actuator
Designation
Structure Borne Sound Control Module J869
Equipment
Depending on engine version
Installation location
In the plenum chamber, right-hand side, beneath the windshield
Task
Producing a sporty engine sound for the vehicle occupants
Address Word
A9
Data bus communication
Powertrain CAN bus user
J869
629_014
13
Air conditioning system
Designation
Climatronic Control Module J255
Equipment
Standard equipment: automatic climate control, PR No.: 9AK
Installation location
On the instrument panel cross-member
Tasks
Controlling:
• Temperature
• Blower
• Air flow distribution
Address Word
08
Data bus communication
• Convenience CAN bus user
• J255 is the LIN master for:
• LIN 1 – Fresh Air Blower Control Module J126, Refrigerant Circuit Pressure Sensor G805,
Humidity Sensor in Fresh Air Intake Duct G657 and Air Quality Sensor G238
• LIN 2 – Front A/C Display Control Head 1 E774 to Front A/C Display Control Head 5 E778
Special feature
The control module is separate from the operating and display components
J255
629_015
14
Door electronics, driver side
Designation
Driver Door Control Module J386
Equipment
Always installed
Installation location
In the driver's door
Task
Controlling the electrical and electronic components in and on the driver's door
Address Word
42
Data bus communication
Convenience CAN bus user
Special features
• J386 acts as the substitute master for the central locking system in the event of failure of
Vehicle Electrical System Control Module 1 J519
• Activates the side turn signal in the driver's door mirror
J386
629_016
Door electronics, passenger side
Designation
Front Passenger Door Control Module J387
Equipment
Always installed
Installation location
In the front passenger's door
Task
Controlling the electrical and electronic components in and on the front passenger's door
Address Word
52
Data bus communication
Convenience CAN bus user
Special feature
Activates the side turn signal in the front passenger door mirror
J387
629_017
15
Advanced key / keyless entry and start authorization
Designation
Access/Start Authorization Control Module J518
Equipment
Standard equipment: keyless start
Optional equipment: keyless entry, PR No.: 4F2
Installation location
Under the instrument panel
Tasks
• Monitoring both capacitive sensors
• Activation of the entry and start authorization antennas
Address Word
B7
Data bus communication
Convenience CAN bus user
Special feature
Exterior antennas are installed on the vehicle underbody in the B post area
J518
629_018
16
Electrical steering column lock
Designation
Electronic Steering Column Lock Control Module J764
Equipment
Always installed
Installation location
On the steering column
Task
• Locking and unlocking the steering column
Address Word
2B
Data bus communication
Convenience CAN bus user
Special features
• Can be replaced separately from the steering column
• Immobilizer user
J764
629_020
Back-up camera
Designation
Rearview Camera System Control Module J772
Equipment
Optional equipment
Versions:
• Parking aid plus with back-up camera, PR No.: 7X2+KA2
• Parking aid with back-up camera, PR No.: 7X5+KA2
Installation location
In the handle on the trunk lid
Tasks
• Rectification and processing of raw images captured by the camera
• Transfer of processed images to Information Electronics Control Module 1 J749
Address Word
6C
Data bus communication
Infotainment CAN bus user
Special feature
No need for a separate control module, control module and camera are integrated in a single
housing
J772
629_021
17
Infotainment
Designation
Information Electronics Control Module 1 J794
Equipment
MMI radio as standard equipment, PR No.: I8E+7UH
Optional equipment
Versions:
• MMI touch, PR No.: UJ1
• MMI Navigation plus, PR No.: I8H+7UG
Installation location
In the glove compartment
Task
Controlling the infotainment systems
Address Word
5F
Data bus communication
• Infotainment CAN bus user
• MOST bus user
• J794 is connected to the Multi-media System Operating Button E380 and to Instrument
Cluster Control Module J285 via the Modular Infotainment System CAN.
Special features
• No need for a separate MMI display, all content is displayed in the Audi virtual cockpit
• J794 is the system manager and the ring break diagnostics master for the MOST bus
J794
629_022
Sound amplifier
Designation
Digital Sound System Control Module J525
Equipment
Optional equipment for models with Bang & Olufsen Sound System, PR No.: 9VS
Installation location
Under the driver’s seat
Task
Driving the 12 loudspeakers
Address Word
47
Data bus communication
MOST bus user
J525
629_023
18
Electronic Stabilization Program (ESP)
Designation
ABS/ESP Control Module J104
Equipment
Always installed
Installation location
• In the engine compartment, on right-hand side of engine bulkhead in left-hand-drive models
Tasks
•
•
•
•
•
•
•
Address Word
03
Data bus communication
Suspension CAN user
Special features
• The control module can be replaced separately from the valve block using ESD protective
mat VAS 6613
• The electro-mechanical parking brake is integrated into the ABS/ESP Control Module.
Address Word 53 for electro-mechanical parking brake has been deleted.
Anti lock braking system (ABS)
Electronic Stabilization Program (ESP)
Traction Control System (TCS)
Electronic Differential Lock (EDL)
Electronic transverse lock
Multicollision brake
Electro-mechanical parking brake (EPB)
J104
Valve block
629_025
19
Power steering
Designation
Power Steering Control Module J500
Equipment
Always installed
Installation location
Connected to the steering gear
Tasks
•
•
•
•
Address Word
44
Data bus communication
Suspension CAN user
Special features
• The control module with power steering motor as well as Steering Angle Sensor G85 can only
be replaced together with the steering gear
• G85 has no separate data bus connections; data is transferred through Power Steering Control
Module J500
Power steering
Servotronic speed-responsive power steering
Corrective steering intervention, with Audi active lane assist and park assist
Corrective steering intervention, with ESP
J500
629_026
All-wheel drive
Designation
All Wheel Drive Control Module J492
Equipment
Standard equipment with quattro powertrain
Installation location
Connected to the rear axle gear
Task
Controlling the Haldex coupling depending on the driving situation
Address Word
22
Data bus communication
Suspension CAN user
Special features
• The control module can be replaced separately and without removing the rear axle gear
• The Haldex coupling setup can be selected via Audi drive select
J492
629_027
20
Parking aid/ park assist
Designation
Parking Aid Control Module J446
Parallel Parking Assistance Control Module J791
Equipment
Optional equipment
Versions:
• Rear parking aid, PR No.: 7X1
• Parking aid plus, PR No.: 7X2
Installation location
Behind the instrument panel, left-hand side
Tasks
• Monitoring the ultrasound sensors and, depending on version, audible or visual obstacle warnings
Address Word
76
Data bus communication
Suspension CAN user
Special feature
The diagnostic address is now 76, instead of Address Word 10 on previous Audi models
J446 / J791
629_028
Audi magnetic ride (TTS)
Designation
Electronic Damping Control Module J250
Equipment
Optional equipment, PR No.: 1BL
Installation location
Under the right-hand front seat
Task
Adaptation of the damping characteristic
Address Word
14
Data bus communication
Suspension CAN user
J250
629_029
21
Engine Control Module
Designation
Engine Control Module J623
Equipment
Always installed
Installation location
In the engine compartment next to the E-box
Task
Controlling the engine characteristic
Address Word
01
Data bus communication
Powertrain CAN bus user
Special features
• Control modules (gas engine/diesel engine) have different plug connections
• Immobilizer user
• Vehicles with an anti-theft alarm have an anti-theft device
(sheet metal cover with shear bolts) over the Engine Control Module
J623
629_030
Airbag
Designation
Airbag Control Module J234
Equipment
Always installed
Installation location
On the center tunnel in front of the center console
Tasks
• Deployment of the airbags
Address Word
15
Data bus communication
• Powertrain CAN bus user
• LIN master for Passenger Occupant Detection System Control Module J706 in vehicles for the
North American Region
Special feature
J234
22
629_031
DSG transmission
Designation
DSG Transmission Mechatronic J743
Equipment
Optional equipment for vehicles with double-clutch transmission:
Installation location
On the transmission
Task
Controlling the double-clutch transmission
Address Word
02
Data bus communication
Powertrain CAN bus user
J743
629_032
Selector lever sensors
Designation
Selector Lever Sensor System Control Module J587
Equipment
For vehicles with DSG transmission:
Installation location
On the selector lever housing
Tasks
• Indication of the selector lever position
• Indication of tiptronic commands
Address Word
81
Data bus communication
Powertrain CAN bus user
Special feature
The control module can only be replaced together with the selector lever
J587
629_033
23
Headlight range adjustment
Designation
Cornering Lamp and Headlamp Range Control Module J745
Equipment
Always installed, different versions depending on type of headlights installed
Installation location
Behind the instrument panel, left-hand side
Tasks
• Dynamic headlight range adjustment
• Controlling the light profiles
Address Word
55
Data bus communication
CAN-Extended bus user
Special feature
Connected to the power modules for the left and right headlights via a sub-bus system
J431 / J745
629_034
Audi side assist (lane change warning system)
Designation
Lane Change Assistance Control Module J769
Lane Change Assistance Control Module 2 J770
Equipment
Optional equipment, PR No.: 7Y1
Installation location
• In the bumper, rear right (J769)
• In the bumper, rear left (J770)
Tasks
• Monitoring the area behind and to the side of the vehicle
• Activation of the warning lights in the door mirrors
Address Word
3C
Data bus communication
• J769 (master) CAN-Extended bus user
• J770 (slave) connected to J769 via a sub-bus system
Special feature
The control modules are mounted in the bumper cover. The system has to be calibrated after
removal and installation.
J769
J770
24
629_035
Notes
25
Exterior lights
Headlights
Full LED headlights are now standard equipment for the
2016 TT. All functions, including low beam, high beam,
daytime running lights, side lights, and turn signal indicator use LED technology.
LED headlight
The bumper cover must first be removed when removing
the headlights. They are connected to the body by adjusting
elements which provide a means of adjustment to the
other body parts. It is possible to adjust the headlights
exactly with other body parts.
The parts marked “Service” in the detailed description of
the headlights on the following pages can be replaced
individually in the event of damage.
26
629_040
In the event of damage to the upper and inner headlight
mounts, repair tabs can be attached to the headlight
housing. Always refer to ElsaPro and ETKA for the proper
workshop procedures and part numbers.
LED headlight, PR No.: 8IT
LED headlight power
module 1 "Service"
(low beam and high beam)
The illustration shows the left headlight in the ECE1) version
Headlight housing
Daytime running light/side
light control unit "Service"
Headlight power module
"Service" (headlight range adjustment)
All-weather light module
Plastic optical fiber with modular
daytime running light/side light
Low beam module
Turn signal module
High beam module
629_042
Design trim
Light functions
Bulb used
Power
Daytime running light
Side light
10 LEDs with plastic optical fibers
dimmed to approximately 10% when the
side light function is active
17 watts
Low beam
11 LEDs
30 watts
High beam
8 LEDs
28 watts
All-weather light
3 LEDs
10 watts
Turn signal light
10 LEDs
16 watts
Sidemarker (not shown)
2 LEDs
1 watt
Activation mechanism
Adaptation for driving on the opposite side of the road
The day time running light/side light control module is
activated directly by Vehicle Electrical System Control
Module 1 J519. The control modules for the headlight
power module and LED headlight power module 1 are
connected to Cornering Lamp and Headlamp Range Control
Module J745 via a CAN bus. J745 in turn receives its commands from the J519.
It is not necessary to adapt the headlights. No further action
is needed in order to meet the statutory requirements.
Equipment
The headlight washer system is integrated as standard into
the LED headlight.
The day time running light is switched off for the duration
of a turn signaling cycle. The side light LEDs are used for
the Coming Home/Leaving Home function.
Service
With this headlight version, only the three outer control
modules can be replaced. The headlight range adjustment
servomotor (not shown) cannot be replaced individually.
27
Headlight range adjustment
The Audi TT always comes equipped with a dynamic headlight range adjustment system. Depending on the attitude
and movement of the vehicle, Headlamp Beam Adjustment
Motors (V48, V49) correct the headlight range of the headlights.
However, the designation of the headlight range adjustment control unit, the number of ride height sensors as
well as the transmission rate for activation of the headlight
range adjustment servomotors differ according to headlight version.
The Audi TT can be optionally equipped with Audi magnetic
ride. These vehicles have four sensors for detecting the
vehicle ride height. The signals from these senders are are
sent to Electronic Damping Control Module J250 via discrete lines. J250 is a powertrain CAN bus user and relays
information on vehicle ride height via CAN bus to the headlight range adjustment control unit (depends on headlight
version installed).
Schematic diagram of the headlight range adjustment system
1)
in conjunction with LED headlights
2)
in vehicles with Audi magnetic ride
Left Rear Level
Control System
Sensor G761)
Data Bus On Board
Diagnostic Interface
J533
Cornering Lamp and Headlamp
Range Control Module
Headlamp Power Output Stages
J667 / J6682)
J7452)
Left Rear Level
Control System
Sensor
G762)
Headlamp Beam
Adjustment Motors
V48 / V492)
Cornering Lamp and Headlamp Range
Control Module
Headlamp Power Output Stages
J667 / J6683)
J7453)
Left Rear Level
Control System
Sensor
Left Front Level
Control System
Sensor
G763)
G783)
Headlamp Beam
Adjustment Motors
V48 / V493)
Electronic Damping Control Module
J2504)
Chassis CAN bus
Extended CAN bus
LIN bus
Sub-bus systems
Discrete line
Left Rear Level
Control System
Sensor G762)
Right Rear Level
Control System
Sensor G772)
Left Front Level
Control System
Sensor G782)
Right Front Level
Control System
Sensor G2892)
629_045
28
Tail lights
The tail lights of the Audi TT use only LEDs. Two versions of
tail lights are available:
The tail light versions are geometrically identical. The only
functional difference is the additional side marker for the
SAE version.
• Low version (used with Xenon headlights) (not available
for the North American market)
• High version (used with LED headlights)
Brake light/
fog light
Tail light
Back-up light
629_046
Sidemarker2)
Turn signal light
Brake light
Activation mechanism
Service
The tail lights are activated by Vehicle Electrical System
Control Module 1 J519. The tail light LEDs are used for the
Coming Home/Leaving Home function.
There are no serviceable parts for the tail lights. In the
event of damage, the entire tail light unit must be
replaced.
2)
SAE = for North American Region
29
High-level brake light / license plate light
High-level brake light
The high level brake light is integrated into the trunk lid
below the rear spoiler. It has a total of 18 LEDs.
The individual component parts of the high-level brake
light cannot be replaced. If defective, the complete component must be replaced. The high-level brake light can be
replaced after raising the rear spoiler.
629_047
License plate lights
The license plate lights use LED technology irrespective of
tail light version. Both lights are integrated into the trunk
lid handle. Each has two LEDs.
Handle
The license plate lights are activated by J519 and can be
replaced individually.
Back-up camera
629_048
License plate lights
30
Vehicle electronics
removable key to enable valet
functions
Car key
The keys of the 2016 TT have been redesigned. The shape
of the key and design of the buttons makes tactile identification and operation easier.
Each new vehicle is supplied with three car keys. Two of
these keys are fully functional remote control keys, while
the third key is a wallet key. Each of the remote control keys
houses a key to enable the valet functions.
The wallet key can be used to open and close the mechanical locks on the vehicle. It is also possible to switch on the
ignition and start the engine with this key. Because the
wallet key does not have a battery, the emergency transponder coil must be used to turn on the ignition and start
the engine.
629_049
Audi TT car key in standard design
If the Audi TT is equipped with the optional advanced key
(keyless entry system), the back of the remote control key
is chrome-plated. The second remote control key is supplied in the standard design.
Keyless starting system
The keyless starting system is standard on the Audi TT.
After pressing the Start button in the center console, the
vehicle electronics check whether an authorized key is in
the vehicle.
If a key is in the vehicle, the ignition is switched on and the
engine is started (the brake pedal must be pressed). A
mechanical ignition lock is not required nor installed.
To implement the keyless starting system, the following
components are required in the vehicle:
• J518 Access/Start Authorization Control Module.
• E408 Access/Start Authorization Button.
• R137 Access/Start Authorization Antenna in Luggage
Compartment.
• R139 Access/Start Authorization Antenna 2 in Vehicle Interior.
Terminal 30
R139
Convenience CAN bus
R137
E408
7.5 A
Access/Start Authorization Control Module
J518
629_050
31
Terminal 15 power supply
Access/Start Authorization Control Module J518 is the
master controller for activation of Terminal 15. Access/
Start Authorization Button E408 provides the central signal
input.
J518 determines the current status of key contact and
Terminals 15 and 50. The terminal states are indicated to
all control modules via the various bus systems. Terminals
15 and 50 also exist as separate supply wires and are
switched by relays.
Terminal 15 Power Supply Relay J329 connects Terminal 30
power to the Terminal 15 supply wire when the ignition is
switched on and disconnects them when the ignition is
switched off. J329 is controlled by J519.
To start the engine, a Terminal 15 supply wire (via J329)
activates Starter Relays 1 and 2. This in turn connects a
Terminal 50 line to the starter solenoid.
For safety reasons, two series-connected starter relays are
always installed. If one starter relay can no longer open its
closed terminals after the engine starts, the second starter
relay will open to break the starter motor circuit. The starter
relays are activated and monitored for DTCs by Engine
Control Module J623.
The following pages discuss this process in detail.
Terminal 30
Vehicle Electrical System Control
Module 1
J519
J329
Terminal 15 - 2
Terminal 15 - 1
Key contact
Terminal 15
Convenience
CAN bus
Access/Start Authorization Control
Module
J518
J533
Powertrain CAN bus
J906
Terminal 50
Engine Control Module
J623
J907
Terminal 50
629_051
J329
Terminal 15 Power Supply Relay
J533
Data Bus On Board Diagnostic Interface
J906
Starter Relay 1
J907
Starter Relay 2
32
Switching Terminal 15 Power Supply Relay J329
There are three signal wires from J518 to J519:
J519 activates Terminal 15 Power Supply Relay J329 if at
least two of the three signal wires is carrying a signal
voltage. This configuration ensures that the vehicle can be
started in the event of an open circuit in one of the three
signal wires.
• Key contact.
• Terminal 15 – 1.
• Terminal 15 – 2.
A signal voltage is applied to these three wires by J518 if
J519 is required to activate Terminal 15 Power Supply Relay
J329.
Access/Start Authorization Control Module J518 also sends
a terminal 15 request to J519 via the CAN bus but this has
no effect on the actual switching of terminal 15; the signal
wires are exclusively responsible for this.
Convenience CAN bus
Access/Start Authorization Control
Module J518
Vehicle Electrical System Control
Module 1 J519
Key contact
Terminal 30
Terminal 15 - 1
Terminal 15 - 2
J329
J329
Terminal 15 Power Supply Relay
Terminal 15
629_053
Switching Starter Relays J906 and J907
A terminal 50 signal wire leads directly to Engine Control
Module J623 from J518. J518 applies a signal voltage to
this wire if the engine is to be started. The ECM switches its
two Starter Relays if this signal wire is live and all other
requirements for starting the engine have been met.
J518 also sends a terminal 50 request to J519 via the CAN
bus. The ECM uses this information to validate the plausibility of the signal from J518.
Terminal 15
Convenience CAN bus
J533
Powertrain CAN bus
J906
Access/Start Authorization Control
Module
J518
Terminal 50
J533
Data Bus On Board Diagnostic Interface
J906
Starter Relay 1
J907
Starter Relay 2
Engine Control Module
J623
J907
Terminal 50
629_054
33
Advanced Key
The Advanced key option is being offered on the Audi TT for
the first time.
The following additional components are integrated into the
advanced key for the keyless entry system:
The car key no longer has to be taken out of the driver's
pocket in order to open both vehicle doors and the trunk
lid. When the driver moves his hand into the door handle or
the trunk lid handle, the advanced key uses radio signals to
search for an authorized key. If the search is successful,
the vehicle or trunk lid is unlocked. Keyless entry is possible
on both the driver and front passenger doors.
• G415 Driver Exterior Door Handle Touch Sensor.
• G416 Front Passenger Exterior Door Handle Touch Sensor.
• R134 Driver Access/Start System Antenna.
• R135 Front Passenger Access/Start System Antenna.
• R136 Access/Start System Antenna in Bumper.
Terminal 30
E408
R134
R135
R136
R137
R139
7.5 A
Access/Start Authorization Control Module
J518
Wake-up signal
G415
G416
R47
Convenience
CAN bus
Data Bus On Board
Diagnostic Interface
J519
629_055
Implementation of keyless entry and start systems at Audi
There are two different versions of the keyless entry system
for Audi models. The systems differ from one another in
regard to system supplier and the internal system processes, however not from the customer's point of view.
This eSelf-Study program gives a detailed description of the
Hella system offered in the 2016 Audi TT.
The systems in the ‘B’ series vehicles onwards are suppied
by Marquardt, while the systems in the Audi A3 and Audi TT
are suppied by Hella. The keyless entry and start system
was first introduced in the Audi A8 (D3) in 2003. The
system was subsequently described in several Self-Study
Programs. All previous system descriptions refer to the
Marquardt system because this was the only system in the
Audi model range until now.
• Turning on the ignition with the start button.
The following system processes are described:
• Turning on the ignition with the emergency transponder
coil.
• Starting the engine with the start button.
• Unlocking the vehicle via the sensor in the driver's door
handle.
• Unlocking the trunk lid using the Softtouch function.
34
Notes
35
System processes in the keyless start system
Turning on the ignition
(not starting the engine)
Initial situation:
• The vehicle is equipped with an automatic transmission.
• The CAN bus and Vehicle Electrical System Control
Module 1 are active.
• An authorized key is located inside the vehicle.
• The brake pedal is not pressed when the start button is
pressed.
E408
R137
Terminal 30
R139
7.5 A
Access/Start Authorization Control Module
J518
Wake-up signal
Vehicle Electrical System
Control Module 1
Terminal 15 - 2
J285
Terminal 15 - 1
Key contact
Convenience CAN bus
J764
R47
Terminal 30
J519
J329
D2
Terminal 15
D2
Anti-theft Immobilizer Reader Module
E408
Access/Start Authorization Button
J285
Instrument Cluster Control Module
J329
Terminal 15 Power Supply Relay
J764
Electronic Steering Column Lock Control Module
R47
Central Locking and Anti-theft Alarm System Antenna
R137
Access/Start System Antenna in Luggage Compartment
R139
Access/Start System Antenna 2 in Vehicle Interior
36
629_056
The system process step by step:
14. After receiving a key response, J519 transmits the
response to J285.
1.
Access/Start Authorization Button E408 is pressed.
2.
This is detected by J518.
3.
J518 instructs J764 to unlock the steering column via
the Convenience CAN bus.
15. Taking the key response as a basis, J285 checks
whether the response originates from an authorized
key.
4.
J518 instructs Instrument Cluster Control Module J285
via the Convenience CAN bus to enable the terminals.
16. If the check is successful, J285 notifies J764 via the
Convenience CAN bus.
5.
J285, in turn, instructs J518 to search for an authorized key.
17. If all the requirements for unlocking the steering
column are met, J764 unlocks the steering column.
6.
J518 initiates a key search by activating antennas R137
and R139.
18. The successful unlocking of the steering column is
indicated to J518 and J285 via the Convenience CAN
bus.
7.
An authorized key receives the signals sent by both
interior antennas and responds by giving its key
identification number.
8.
J519 receives the response from the key via Central
Locking and Anti-theft Alarm System Antenna R47.
9.
J519 indicates the reception of a key response to J285
via the Convenience CAN bus.
10. J285 sends key authentication data to J518 via the
Convenience CAN bus.
11. J518 activates interior antennas R137 and R139 once
again to transfer authentication data and measurement signals.
12. The key measures the field strengths of the measurement signals. Taking the measured field strengths as a
basis, the key determines whether it is located inside
the vehicle or not. In addition, the key calculates an
appropriate key response based on the authentication
data received.
19. J285 sends an enabling signal for the terminals to
J518.
20. J518 receives this information and checks whether all
the requirements for switching on terminal 15 have
been met.
21. If all the requirements have been met, the three signal
lines (key contact, terminal 15-1 and terminal 15-2)
are switched by J518.
22. If J519 measures a high enough voltage level in at
least two of the three signal lines, it switches relay
J329. The terminal 15 supply voltage will then be
available to the connected electrical loads.
23. After switching the relay, J519 changes the status of
terminal 15 from "off" to "on" and places this information on the CAN bus.
13. The key sends a radio response if located inside the
vehicle, and no response if not located inside the vehicle.
37
Turning on the ignition via the emergency transponder coil (not engine starting)
Initial situation:
• The vehicle is equipped with an automatic transmission.
• The batteries in the remote control key are so weak, it is
not possible to communicate with the vehicle.
E408
• The CAN bus and Vehicle Electrical System Control
Module 1 are active.
• The brake pedal is not pressed when the driver presses
the start button.
Terminal 30
R137
R139
7.5 A
Access/Start Authorization Control Module
J518
Wake-up signal
Vehicle Electrical System
Control Module 1
Terminal 15 - 2
J285
Terminal 15 - 1
Key contact
Convenience CAN bus
J764
R47
Terminal 30
J519
J329
D2
Terminal 15
D2
Anti-theft Immobilizer Reader Module
E408
Access/Start Authorization Button
J285
Instrument Cluster Control Module
J329
Terminal 15 Power Supply Relay
J764
Electronic Steering Column Lock Control Module
R47
Central Locking and Anti-theft Alarm System Antenna
R137
Access/Start System Antenna in Luggage Compartment
R139
Access/Start System Antenna 2 in Vehicle Interior
38
629_056
The system process step by step:
1.
Access/Start Authorization Button E408 is pressed.
14. The driver holds the car key in the position indicated.
2.
This detected by Access/Start Authorization Control
Module J518.
15. The coil supplies the key with sufficient power and
exchanges data with it.
3.
J518 instructs J764 to unlock the steering column via
the Convenience CAN bus.
16. J285 receives this data and verifies it.
4.
J518 then instructs Instrument Cluster Control Module
J285 to enable the terminals via the Convenience CAN
bus.
5.
J285, in turn, instructs J518 to search for an authorized key.
6.
J518 then initiates a key search by activating interior
antennas R137 and R139.
7.
Because the battery of the authorized key is too weak,
this key can neither receive the message nor send a
radio response.
8.
J285 does not receive a key response from J519 via the
Convenience CAN bus within the given time period.
9.
After this, J285 again instructs J518 to search for an
authorized key.
10. J518 again activates its two interior antennas, R137
and R139.
11. J285 again does not receive a key response from J519
via the convenience CAN within the given time period.
12. J285 then displays a message to prompt the driver to
hold the key in the position indicated inside the vehicle.
17. If the check is successful, J285 notifies J764 via the
Convenience CAN bus.
18. If all other requirements have been met, J764 unlocks
the steering column.
19. The successful unlocking of the steering column is
indicated to J518 and J285 via the Convenience CAN
bus.
20. J285 sends an enabling signal for the terminals to
J518.
21. J518 receives this information and checks whether all
the requirements for switching on terminal 15 have
been met.
22. If all the requirements have been met, the three signal
lines (key contact, terminal 15-1 and terminal 15-2) are
switched by J518.
23. If J519 measures a high enough voltage level in at
least two of the three discrete terminal lines, it
switches Terminal 15 Power Supply Relay J329. The
terminal 15 supply voltage will then be available to the
connected electrical loads.
24. After switching the relay, J519 changes the status of
terminal 15 from "off" to "on" and places this information on the CAN bus.
13. J285 energizes Anti-theft Immobilizer Reader Coil D2
for a defined period of time.
39
Starting the engine with the ignition on
Initial situation:
• The vehicle's ignition is on.
• The brake pedal is pressed.
• The vehicle has an automatic transmission.
• An authorized key is located inside the vehicle.
E408
Terminal 30
R137
R139
7.5 A
Access/Start Authorization Control Module
J518
Terminal 50
Terminal 15
J533
J906
Convenience CAN bus
Powertrain CAN bus
J907
Engine Control Module
J623
Terminal 50
D2
Anti-theft Immobilizer Reader Coil
E408
Access/Start Authorization Button
J285
Instrument Cluster Control Module
J533
Data Bus On Board Diagnostic Interface
J906
Starter Relay 1
J907
Starter Relay 2
R47
Central Locking and Anti-theft Alarm System Antenna
R137
Access/Start System Antenna in Luggage Compartment
R139
Access/Start System Antenna 2 in Vehicle Interior
40
Vehicle Electrical
System Control Module 1
J519
J285
D2
R47
629_057
The system process step by step:
1.
Access/Start Authorization Button E408 is pressed.
2.
This is detected by Access/Start Authorization Control
Module J518. The module knows the driver wants to
start the engine because the brake pedal is depressed.
3.
J518 applies a voltage to the “terminal 50” signal line
leading to Engine Control Module J623.
11. J285 sends key authentication data to J518 via the
Convenience CAN bus.
12. J518 activates interior antennas R137 and R139 once
again in order to transfer authentication data and
measurement signals.
4.
It also changes the "terminal 50" bit request of the
corresponding CAN bus message from 0 to 1.
13. The key measures the field strengths of the measurement signals. Taking the measured field strengths as a
basis, the key determines whether it is located inside
the vehicle or not.
5.
J518 requests the enabling signal for the terminals
from Instrument Cluster Control Module J285.
14. In addition, the key calculates an appropriate key
response based on the authentication data received.
6.
J285, in turn, instructs J518 to search for an authorized key.
15. If the key is located inside the vehicle, its sends a key
response.
7.
J518 then initiates a key search by activating two
interior antennas R137 and R139.
16. J519 indicates the reception of a key response J285 via
the Convenience CAN bus.
8.
An authorized vehicle key in side the vehicle receives
the signals sent by both interior antennas and
responds by giving its key identification number.
17. J285 evaluates the key response with regard to the
immobilizer. If this evaluation and all other checks are
successful, J285 issues an engine enabling signal via
the CAN bus.
9.
J519 receives the response from the key through
antenna R147.
10. J519 indicates the reception of a key response to J285
via the Convenience CAN bus.
18. J623 receives the engine start enabling signal. Voltage
is already present in the terminal 50 signal line from
J518. The ECM then switches its two terminal 50
relays.
19. The starter is subsequently energized and the engine
starting cycle is initiated.
41
System processes in the keyless entry system (Advanced key)
Keyless unlocking of the vehicle at the driver's door
Initial situation:
• There is an authorized car key outside the vehicle within
a radius of 5.0 ft (1.5 m) of the driver's side door handle.
• The vehicle is parked and locked.
Terminal 30
E408
R134
R135
R136
R137
R139
7.5 A
Access/Start Authorization Control Module
J518
Wake-up signal
G415
R47
Convenience CAN bus
G416
Vehicle Electrical System
Control Module 1
Driver Door Control
Module
Front Passenger Door
Control Module
J519
J386
J387
629_058
F248
E408
Access/Start Authorization Button
F248
Rear Lid Lock Cylinder Unlock Button
G415
Driver Exterior Door Handle Touch Sensor
G416
Front Passenger Exterior Door Handle Touch Sensor
R47
Central Locking and Anti-theft Alarm system Antenna
R134
Driver Access/Start System Antenna
R135
Front Passenger Access/Start System Antenna
R136
Access/Start System Antenna in Rear Bumper
R137
Access/Start System Antenna in Luggage Compartment
R139
Access/Start System Antenna 2 in Vehicle Interior
42
The system process step by step:
1.
The customer grips the door handle of the driver's
door.
2.
The request to open is detected by J518 through Driver
Exterior Door Handle Touch Sensor.
3.
J518 then activates antenna R134 on the driver's side,
and a key search begins.
4.
J518 wakes up Vehicle Electrical System Control
Module 1 J519 via a signal line.
5.
An authorized car key which receives this antenna
signal then responds by giving its key identification
number as feedback.
6.
J519 receives a key response through the antenna R47.
It subsequently wakes up the convenience CAN bus.
7.
J519 informs that it has received a key response.
8.
J518 re-activates antenna R134, followed by interior
antennas R137 and R139.
9.
The key receives the antenna signals and measures
their field strengths.
10. Based on the measured field strengths, the key can
decide whether it is in a position which allows the
vehicle to be unlocked.
11. If the key arrives at a positive result, it sends a key
response to J519. In the event of a negative result, no
response is sent.
12. J519 receives the response from the key through the
central locking antenna R47.
13. If more than one authorized key provides feedback,
J519 assigns a higher priority to one of the keys and
proceeds with this key only.
14. The key response contains additional information
based on which J519 can verify whether the response
actually originates from an authorized car key.
15. If this is the case and if all other requirements for
unlocking have been met, the unlocking command is
placed on the CAN bus.
16. The door control modules unlock the vehicle doors, and
the handle in the trunk lid F248 (Softtouch) is enabled.
43
Keyless trunk lid opening
Initial situation:
• There is an authorized car key outside the vehicle within
a radius of 5.0 ft (1.5 m) of the trunk lid handle.
• The vehicle is parked and locked.
Terminal 30
E408
R134
R135
R136
R137
R139
7.5 A
Access/Start Authorization Control Module
J518
Wake-up signal
G415
R47
Convenience CAN bus
G416
Vehicle Electrical System
Control Module 1
Driver Door Control
Module
Front Passenger Door
Control Module
J519
J386
J387
629_058
F248
The system process step by step:
1.
The customer reaches into the handle in the trunk lid.
2.
The actuation of Rear Lid Lock Cylinder Unlock Button
F248 (Softtouch) is detected by J519.
3.
4.
Vehicle Electrical System Control Module 1 J519 wakes
up the Convenience CAN bus.
J519 instructs Access/Start Authorization Control
Module J518 via the Convenience CAN bus to search for
a key at the rear of the vehicle.
5.
J518 subsequently activates Access/Start System
Antenna in Rear Bumper R136.
6.
An authorized car key which receives this signal then
responds by giving its key identification number as
feedback.
9.
J518 re-activates antenna R136, followed by interior
antennas R137 and R139.
10. The key receives the antenna signals and measures
their field strengths.
11. Based on the measured field strengths, the key can
decide whether it is in a position which allows the trunk
lid to be unlocked.
12. If the key arrives at a positive result, it sends a key
response. In the event of a negative result, no response
is sent.
13. J519 receives and evaluates this information.
7.
8.
44
J519 receives the response from the key through the
Central Locking and Anti-theft Alarm System Antenna
R47.
J519 indicates to J518 via the Convenience CAN bus
that an authorized key has responded.
14. This key response contains additional information
based on which J519 can verify whether the response
actually originates from an authorized car key.
15. If all the requirements for unlocking the trunk lid have
been met, J519 activates the trunk lid lock, and the
trunk lid open.
Immobilizer
A fifth generation immobilizer system is used on the 2016
TT. It is the same as the system used on the 2015 A3 and is
diagnosed in the same manner.
Convenience CAN bus
Data Bus On Board Diagnostic
Interface
J533
Instrument Cluster Control Module
J285
Electronic Steering Column Lock
Control Module
J764
Powertrain CAN bus
Engine Control Module
Transmission Control Module
J623
J217
Car key
629_059
Immobilizer master control module:
• Instrument Cluster Control Module J285.
Other immobilizer system participants:
•
•
•
•
All car keys.
Engine Control Module J623.
Electronic Steering Column Lock Control Module J764.
Transmission Control Module J217.
!
Note
Please note the information on installation of Electronic Steering Column Lock Control Module J764 on the following page.
45
Electronic Steering Column Lock Control Module J764
At launch, all TT models will come equipped with Electronic
Steering Column Lock Control Module J764. It is planned to
eliminate this control module in models with automatic
transmissions in some markets.
Always consult ElsaPro and ETKA for the latest information
when working on this system.
Installation location
of J764
Electronic Steering Column
Lock Control Module J764
629_060
Steering column
locking bolt
Steering column of
the Audi TT
629_061
Comparing the steering column locking systems of the
2016 TT and the 2015 Audi A3 reveals the following commonalities and differences:
Commonalities:
• J764 is integrated with the immoblizer system.
• J764 is connected to the convenience CAN bus.
• J764 locks and unlocks the steering column.
Differences:
• On the Audi A3, installation of the electronic steering
column lock is coupled to the optional advanced key.
It comes installed in 100% of Audi TT models.
• On the A3, J764 assumes the master function for terminal control. On the 2016 TT, this task is performed by
Access/Start Authorization Control Module J518.
• On the A3, J764 reads the signal from Access/Start Authorization Button E408. On the 2016 TT this task is performed
by Access/Start Authorization Control Module J518.
• On the A3, five additional signal lines lead to J764. On
the 2016 TT, no signal lines lead to J764.
46
Electrical rear spoiler
The 2016 TT has an electrically operated rear spoiler as standard equipment.
There are two differences between the way in which the rear spoiler operates in the 2016 Audi TT and in the predecessor
model.
1. The task of controlling the rear spoiler has been transferred to Vehicle Electrical System Control Module 1
J519. It was controlled by Comfort System Central
Control Module J393 on the predecessor model.
2. Two Hall sensors are used to detect the position of the
rear spoiler in the Audi TT. Two micro-switches were
used for this purpose in the predecessor model.
The two micro-switches only indicated when a limit
position had been reached. An issue with the microswitch based solution of the predecessor model was
that it was not possible to determine the position of the
rear spoiler between the two limit positions.
On the 2016 TT, one Hall sensor serves to detect the
“Rear spoiler extended” limit position, while the second
Hall sensor counts the number of the turns of the
adjustment motor. The exact position of the rear spoiler
can be determined from the information provided by
both sensors.
Vehicle Electrical System Control Module 1
Function LED, rear spoiler
Rear spoiler adjustment button
Ground, Hall sensors
Limit position signal
Motor power supply
Motor power supply
Motor turns signal
Power supply, Hall sensors
J519
629_062
47
Overhead module
The overhead module for the TT contains the “PASSENGER
AIRBAG OFF / ON” display, the garage door opener and
interior lighting controls.
Garage door opener control module (HomeLink)
Left interior monitor sensor
Right interior monitor sensor
Left reading light
Right reading light
629_066
Left microphone
Background spotlight in overhead
module
Right microphone
Background spotlight in overhead
module
Interior light switch button
PASSENGER AIRBAG OFF / ON display
48
Notes
49
Interior light
Standard lighting in the Audi TT
In the Audi TT, both the vanity lights in the two sun visors
and the footwell lighting are standard and use LED technology. The luggage compartment light also uses LED technology.
The bulbs in the overhead module are also LEDs. The two
reading lights are no longer switched on and off using
conventional mechanical buttons, but rather are switched
on and off contactlessly via remote switches. Moving a
finger into the vicinity of a reading light is sufficient to
change its status from on to off, and vice versa.
The customer can set the brightness of the footwell lights
via the MMI control panel. To do this, the customer can find
the option "Background lighting" under the menu item
"Vehicle settings" in the main function "Car".
Terminal 30 switched
Terminal 58xs
Vehicle Electrical System
Control Module 1
J519
Roof module
629_065
Light uses LED
technology
1.
2.
3.
50
Light uses bulb
technology
Vanity lights
		
Light in glove compartment
4.
Background spotlight in overhead module
5.
Right luggage compartment light
Reading light in overhead module
		
6.
Footwell lights
Optional interior lighting package
If an Audi TT has the interior lighting package, it has additional lights in the doors, in the center console and in the
luggage compartment. All additional lights in the interior
lighting package incorporate LED technology with the
exception of the two active door reflectors which still use
conventional bulbs.
The entire vehicle is subdivided into three interior lighting
zones:
• Front
• Footwell
• Door
The customer can set a different brightness level for each
zone via the MMI control panel.
Terminal 30 switched
Convenience CAN bus
Terminal 58xs
Roof module
Driver Door Control
Module
J386
Vehicle Electrical System
Control Module 1
J519
Front Passenger Door
Control Module
J387
629_067
1.
Vanity lights
8.
Lights in driver and front passengr footwells
2.
Light in glove compartment
10.
Active door warning light
3.
Reading light in overhead module
11.
Door entry light
4.
Background spotlight in overhead module
12.
Inner door handle light
5.
Media box light
13.
Optical fiber of ambient light in door
6a.
Left luggage compartment light
14.
Door storage compartment light
6b.
Right luggage compartment light
15.
Premium Sound speaker lighting
7.
Light strips in center console
The two lights for illuminating the Premium Sound speakers are only installed in the vehicle if it has the optional
Bang & Olufsen Sound System.
These lights are not a component part of the optional interior
lighting package. Regarding brightness adjustment in the Audi
virtual cockpit, they are assigned to the "door" zone.
51
Infotainment
The Audi TT introduces the next generation of Audi infotainment systems. The Audi TT is the first vehicle to be
equipped with the second-generation Modular Infotainment System (MIB) in its full specification.
Overview of versions
Two versions of the MMI are available in the Audi TT:
• MMI radio.
and
• MMI Navigation plus.
From a technical point of view, the MMI radio and MMI
Navigation plus correspond to the second-generation MIB
High.
The customer can order the optional connectivity package
for the MMI radio. The package also includes pre-wiring for
a navigation unit.
52
The Audi TT features the new Audi operating concept which
allows even more intuitive operation. Due to the complete
restructuring of the menu, each function can be accessed
with no more than three clicks. The high version of the
multifunction steering wheel enables the driver to control
virtually all functions without looking away from the road.
MMI radio (i8E)
with connectivity package (7UH)
MMI Navigation plus (i8H)
with Audi connect (EL3)
Standard equipment
Standard equipment
Audi virtual cockpit (9S8)
Audi virtual cockpit (9S8)
Pre-wiring for navigation unit (7UH)
3D SSD navigation system (7UG)1))
MMI touch (UJ1)
MMI touch (UJ1)
Multifunction steering wheel, high version
(2PF)
Multifunction steering wheel, high version
(2PF)
AM/FM radio with phase diversity and
background tuner
AM/FM radio with phase diversity and
background tuner
Jukebox (approx. 11 GB)
CD drive (MP3, WMA, AAC)
DVD drive (audio/video)
Two SDXC card readers
Two SDXC card readers
Audi music interface with two USB ports and
AUX-in jack (UE7)
Audi music interface with two USB ports and
AUX-in jack (UE7)
Audi sound system (9VD)
Audi sound system (9VD)
Bluetooth interface for
HFP and A2DP (9ZX)
Bluetooth interface for
HFP and A2DP (9ZX)
Audi sound system (9VD)
Audi connect (EL3)
Digital radio (SDARS) (QV3)
Digital radio (SDARS) (QV3)3)
Optional equipment
Optional equipment
Bang & Olufsen Sound System (9VS)
Bang & Olufsen Sound System (9VS)
3)
1)
2)
3)
For countries without navigation map data, the PRNR is 7UH.
Also available with Basic Plus sound system (8RM) depending on country.
If digital radio (QV3) and TV tuner (QV1) are ordered together, the PRNR is QU1.
53
Second-generation MIB High
(Modular Infotainment System)
The second-generation MIB High is the current high-end
version of the Modular Infotainment System.
Compared to the first generation MIB introduced in the
2015 A3, the second generation MIB High in the 2016 TT
has the following technical modifications:
• Double processing power (8000 MIPS1)).
Front panel of J794 for MIB High
629_068
• Double RAM (2 GB).
• High-speed Wi-Fi (up to 150 Mbit/s).
• Screen formats of 1440 x 540 pixels
and 1024 x 480 pixels are also possible.
• New operating concept.
Technically speaking, an MIB High control unit is always
installed in the Audi TT. Depending on the customer's
specifications, the installed system can have the following
designations:
• MMI radio.
629_069
• MMI Navigation plus.
Rear panel of J794 for MIB High
Information Electronics Control Module 1 J794 is installed
in the glove compartment in the TT. It is always equipped
with a MOST bus connection regardless if the equipment
level requires it or not.
The key features of both versions of the Audi TT infotainment system are shown on the following pages.
Front panel of J794 for MIB High with Audi connect
629_070
629_071
Rear panel of J794 for MIB High with Audi connect
1)
Million Instructions per Second
54
MMI radio
Features of the MMI radio include:
• Radio with phase diversity, FM dual tuner (very high
frequency) and AM tuner (medium wave).
• Single CD drive for audio playback (MP3, WMA, AAC).
• Two SDXC card readers for audio playback (MP3, WMA,
AAC).
629_072
Display for MMI radio
• Car menu.
• 1440 x 540 pixel video output.
• AUX-in connection (UE3) and one 5V charging port in
USB format.
• Multifunction steering wheel.
• Internal audio amplifier for Audi sound system rated at
155 watts (8VD).
629_068
Front panel of J794 for MMI radio
• Audi music interface for audio files (UE7).
• SDARS tuner (NAR-spec digital radio) (QV3).
DAB
The following optional equipment can be ordered for the
MMI radio:
• External audio amplifier with Bang & Olufsen sound
system rated at 680 watts (9VS).
If the vehicle has the PR numbers "i8E" plus "7Q0", this
means that it is installed with the MMI radio.
MOST
Rear panel of J794 for MMI radio
FM2
FM1/AM
Display output
AMI USB
629_073
55
MMI radio with connectivity package
Compared to the MMI radio without connectivity package,
the MMI radio with connectivity package has the following
additional features:
• Pre-wiring for navigation unit with installed navigation
antenna.
• Bluetooth interface for HFP and A2DP with Premium
voice dialogue system.
629_074
Display when the navigation function is activated
• Audi music interface with two fully functional USB data
connections (UE7).
• MMI touch.
• Multifunction steering wheel, version (2PF).
629_068
Front panel of J794 for MMI radio
DAB
MOST
GPS
FM2
FM1/AM
Display output
AMI USB
Rear panel of J794 for MMI radio with connectivity package
56
629_069
MMI Navigation plus
Features of the MMI Navigation plus include:
• Radio with phase diversity, FM dual tuner (very high
frequency) and AM tuner (medium wave).
• Single DVD drive for audio and video files.
• Two SDXC card readers for audio and video files.
629_075
MMI Navigation plus display
• SSD drive (approximately 64 GB).
• One SIM card reader.
• Jukebox (approximately 11 GB).
• 3D navigation system with navigation data on solid state
drive.
• Integrated audio amplifier rated at 4 x 25 watts (8RM).
• Audi music interface with two fully functional USB data
connections (UE7).
Front panel of J794 for MIB navigation plus with Audi connect
629_070
• AUX-in connection (UE3).
DAB
• Car menu.
• Bluetooth interface for HFP and A2DP.
• Premium voice dialog system.
• Provision of predictive route data.
• 1440 x 540 pixel video output.
• MMI touch.
• High-speed Wi-Fi module (up to 150 Mbit/s).
• SDARS tuner (NAR-spec digital radio) (QV3).
• Internal audio amplifier for Audi sound system rated
at 155 watts (8VD).
The following optional equipment can be ordered
for the MMI High:
LTE antenna 2
LTE/UMTS/GSM
LTE antenna 1
MOST
GPS
FM2
FM1/AM
Display output
AMI USB
629_071
Back panel of J794 for MMI Navigation plus
• Audi connect (EL3).
• External audio amplifier with Bang & Olufsen sound
system rated at 680 watts (9VS).
If the vehicle has the PR numbers "i8H" plus "7UG", it
means that it has MMI Navigation plus.
57
Audi connect
Various Audi connect services can be ordered for the Audi
TT. The availability of these services is market dependent.
The term Audi connect stands for networked mobility. It
combines applications and developments which allow
media to be used in the vehicle and to be connected to the
outside world.
For example, the following Audi connect services are available for the Audi TT:
Audi connect start page
629_075
• Traffic information online.
• Google Earth map.
• Wi-Fi hotspot.
• Facebook*.
• Twitter.
• Plane / rail information.
Audi connect menu
629_076
• Picture destinations.
*Note - As of June 1st, 2015, Facebook will no longer be
available in the Audi connect portfolio in any Audi vehicles.
Several services, such as "Google Earth", are pre-activated
and ready for use on delivery of the vehicle. Other services,
such as "Facebook", can only be used after they have been
activated via the "myAudi" website or the "myAudi APP"
after "personalizing" the settings. To do this, the customer
must register online at "myAudi" (www.audi.com/myaudi).
Customers can then configure their vehicle. If the configured vehicle meets the requirements for Audi connect, the
additional services available for this vehicle can also be
used.
Traffic information online
629_077
In the Audi TT, news and weather are displayed above the
services list on the Audi connect start page for the first
time. Here, the customer can create a preview of Audi
connect services. This preview is created in the vehicle by
the customer and can also be deleted. Basically, it is possible to create a preview for all Audi connect services.
In the screenshot shown here, the weather and a news
preview are displayed for the actual location. It is also
possible to save a weather forecast for any selectable
location.
Audi connect preview menu
629_078
Reference
For further information about Audi connect, please refer to the Audi Video Portal. Several videos are available that explain
this topic.
58
Networking
In models with MMI radio and MMI Navigation plus, Information Electronics Control Module 1 J794 is connected to
Data Bus On Board Diagnostic Interface J533 via the Infotainment CAN bus. The Infotainment CAN bus is a high
speed bus with a maximum data transfer rate of 500 kbit/s.
The Audi virtual cockpit (J285) and Multi-media System
Control Head E380 are connected to Information Electronics Control Module 1 J794 via a new Modular Infotainment
System CAN (MIB CAN) for the first time. This bus is also a
high speed bus with 500 kbit/s capability.
Driver Volume Control E67 is connected to E380 via a LIN
Bus.
This vehicle therefore has both the infotainment CAN bus
and the MOST bus. The MOST bus is a MOST150 with a data
transfer rate of 150 Mbit/s. J794 acts both as the system
master and diagnostics master for the MOST bus.
Due to the combination of infotainment CAN bus and MOST
bus, an open circuit in the MOST bus will not result in total
failure of the MMI. This means that all functions executed
directly in J794 are still available. However, audio output
via an external amplifier would no longer be possible.
Rearview Camera System Control Module J772 is also
connected to the Infotainment CAN.
If an additional infotainment control module, such as the
Bang & Olufsen audio amplifier is installed, the infotainment system also has an operational MOST bus.
TV tuner
R78
(not for the U.S.
market)
Instrument Cluster
Control Module
J285
Digital Sound System
Control Module
J525
Information
Electronics Control
Module
J794
Driver Volume
Control
E67
Multi-media System Control Head
E380
Data Bus On Board Diagnostic Interface
J533
629_079
Key:
Convenience CAN bus
LIN bus
Infotainment CAN bus
MOST bus
Modular infotainment
system CAN
59
Display and operating concept
Display of MMI content
The Audi TT does not have a separate MMI display. All displays appear in the Audi virtual cockpit.
Example of a selection menu
629_080
Example of an options menu
629_081
Operating concept
The Audi TT features a new operating philosophy. Due to
the complete restructuring of the menu, each function can
be accessed with no more than three clicks. The menu
guidance system used since the launch of the MMI, with
four submenus over each of the four corners of the MMI
screen, has been revised. Depending on menu, there are
now one or two "side menus". They can be accessed by
buttons on the left and right of the rotary pushbutton.
The selection menu (left side menu) can be opened with the
left button. The selection menu contains the submenus of a
main group.
Example: Media and Radio contain the sources.
The options menu (right side menu) can be opened with the
right button. The options menu contains content-dependent and general options.
Toggle button for operating the left and right side menus
629_082
• Content-dependent options are dependent on the cursor
position.
Example: "Add to favorites"
• General options are cursor dependent.
Example: "Sound"
In the case of the MMi radio with connectivity package or
higher, the functions of both buttons in E380 can selected
via the multifunction steering wheel. To do this, there is a
toggle button at the bottom of the left control panel on the
multifunction steering wheel.
Almost any function of the infotainment system can be
operated with the multifunction steering wheel. This is why
there is a toggle button with arrow keys in the right control
panel. This button can be used, for example, to select the
previous or next radio station or track.
Toggle button for selecting forwards and back
Reference
For further information about the operating concept, please refer to eSelf Study Program 910153
"Audi Virtual Cockpit".
60
629_083
Control panel
Multi-media System Control Head E380
With the new operating logic, the controls now have fewer
buttons. There are two toggle switches which can be used
to select between two menus.
The volume control also tilts to the left and right. This
function can be used, for example, to select the previous or
next radio station or track. The volume control has the
designation Driver Volume Control E67.
With the new operating logic, there are now only two
Softkeys in addition to the rotary pushbutton. The predecessor system had a total of four buttons (softkeys).
The left toggle button can be used to activate the following
menus:
• NAV/MAP.
MMI control panel in center console
629_084
• TEL.
The right toggle button can be used to activate the following menus:
• RADIO.
• MEDIA.
The following operations can be performed with MMI
touch:
• Input of letters, numbers and characters by automatic
signature recognition.
• Scrolling through album covers.
• Operating DVD main menu.
• Moving the navigation map.
• Zooming in and out of the navigation map (using a
two-finger pinch gesture as used on smartphones).
• Scrolling through various lists.
629_086
Operating unit with MMI touch
61
Button combinations for service
System reset
To restart (reset), the following buttons must be briefly
pressed simultaneously:
• NAV/MAP.
• Rotary pushbutton.
• RADIO.
Screenshot
When a screenshot is taken, only the image transmitted by
the MMI is saved. Instrument cluster displays are not
shown on this screen. The image is saved to the internal
memory of the Information Electronics Control Module 1
J794. To save a screenshot, the following buttons must be
pressed in succession and held down:
629_087
Button combination for system reset
• NAV/MAP.
• Rotary pushbutton.
The display in the instrument cluster flashes briefly to
indicate that the screenshot has been saved. In total, up to
50 screenshots can be stored in J794. When the 51st
screenshot is saved, the first screenshot is overwritten.
The saved screenshots can then be copied from J794 to an
SD card using the VAS Scan Tool. The procedure is as
follows:
1. Insert blank SD card into the left SD card reader (SD1).
2. Select "5F-Basic setting" in Guided Functions.
629_088
3. Start the "Write analysis data to SD card" Test Plan.
Button combination for screenshot
The analysis data including the screenshots are now copied
to the SD card
Engineering menu
The Engineering menu can be used, for example, for diagnosing difficult issues. To access the menu, the following
buttons must be pressed in succession and held down:
• NAV/MAP.
• MEDIA.
629_089
62
Button combination for the Engineering menu
Sound systems
The Audi TT comes standard with the Audi sound system.
This system has nine speakers including a center speaker in
the center console. To provide more powerful bass, two
special mid-range/bass speakers are installed in the doors.
The audio amplifier is integrated with Information Electronics Control Module 1 J794 and delivers a total output of
155 watts. The speakers are supplied with the following
power outputs through six channels:
• Mid-range/bass speakers in the doors with parallelconnected treble speakers in the instrument panel, 40
watts each side
• Rear mid-range/bass loud with parallel-connected rear
treble speakers, 25 watts each side
• Center speaker rated at 25 watts
Audi TT with Audi sound system
Right Front Treble
Speaker
R22
Right Front Bass
Speaker
R23
Right Rear Treble
Speaker
R16
Right Rear Bass Speaker
R17
Center Speaker
R208
Left Rear Bass Speaker
R15
Left Front Treble Speaker
R20
Left Front Bass Speaker
R21
Left Rear Treble Speaker
R14
629_091
63
Audi TT with Bang & Olufsen Sound System
The Bang & Olufsen Sound System delivers a total power
output of 680 watts through its 12 speakers. The external
B&O audio amplifier (Digital Sound System Control Module
J525) is located under the left front seat and is connected
to Information Electronics Control Module 1 J794 via the
MOST bus.
Center
Speaker 2
Center
Speaker
R208
The audio amplifier supplies the 12 speakers with a total of
14 channels.
• One 25 watt channel per center speaker and
treble center speaker.
• One 25 watt channel per front left and right treble
speaker.
• One 40 watt channel per front left and right mid-range
speaker.
• Two 100 watt channels per front left and right bass
speaker.
• One 25 watt channel per rear left and right treble
speaker.
• One 25 watt channel per rear left and right
mid-range/bass speaker.
Left Front
Treble Speaker
R20
Left Front
Mid-range
Speaker
R103
Left Front
Bass Speaker
R21
64
Right Front
Bass Speaker
R23
Right Front
Mid-range Speaker
R104
Right Rear
Treble Speaker
R16
Right Rear
Bass Speaker
R17
Right Front
Treble Speaker
R22
629_092
Digital Sound System
Control Module
J525
Left Rear
Treble Speaker
R14
Left Rear
Bass Speaker
R15
65
Antenna overview
There are antennas on the rear window, under the rear
bumper and on the roof of the Audi TT. The antenna amplifiers are housed in the trunk lid.
Only the antennas actually needed are installed on the
vehicle.
SDARS
Telephone
Navigation
629_094
Roof Antenna R216 (North America)
Antenna Amplifier 2
R111
AM/FM1 connection
FM connection
Antenna Amplifier
R24
AM antenna
629_095
66
Telephone antennas
Depending on the equipment level, the TT can come with
up to three telephone antennas. Depending on version, the
roof antenna can be configured for LTE, UMTS, and GSM
reception or for UMTS and GSM reception only.
Two antennas are installed under the rear bumper of
models that have Audi connect and LTE reception. The left
antenna is configured to receive LTE signals and transmit
them to Information Electronics Control Module 1 J794.
The right antenna is the North American Region specification and is configured to transmit and receive LTE/UTMS/
GSM signals and relay these signals to J794.
Information Electronics
Control Module 1 J794
LTE Antenna 1
R297
629_096
Coupling antenna
* Not for US
LTE Antenna 2
R306
Cellular Telephone
Amplifier R86
*Not for US
67
Overview of aerial uses
North American Region with Audi connect
LTE aerial 2
LTE/UMTS/GSM
LTE aerial 1
Audi music interface (AMI)
The Audi music interface has two fully functional USB data
connections in the infotainment box. Here, two different
media, such as an USB stick containing audio files and an
iPhone, can be connected at the same time.
If both USB connections are in use, music, for example, can
be output directly to the speakers through one of these
connections. In parallel to this, audio files can be imported
into the Jukebox through the second connection.
5 V and up to 500 mA are available at one of the USB connections. If an iPod or iPad is detected, a current of up to
1.6 A is allowed.
On vehicles equipped with MMI radio, only audio files can
be transmitted through the two connections.
On vehicles equipped with MMI Navigation plus, video files
can be transmitted via the two connections in addition to
audio.
The Audi music interface in the Audi TT also allows mobile
devices to be connected via Wi-Fi. This connection can be
used for audio streaming. Ideally, the customer would use
the Audi music stream app or the Audi connect app for this
purpose.
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629_099
Audi music interface connection
Notes
69
Self study programs
For further or supplementary information on this eSelf Study program, please refer to the following self study programs:
SSP 970243
Audi A3 2015 Onboard Power Supply
and Networking
SSP 970343
Audi A3 2015 Vehicle Electronics
and Driver Assist Systems
eSelf Study Program 990153
eSelf Study Program 910153
SSP 910153
Audi Virtual Cockpit
The 2016 Audi TT
Audi virtual cockpit
i
i
eSelf Study Program 990253
SSP 990253
The 2016 Audi TT Roadster
The 2016 Audi TT Roadster
i
70
SSP 990153
The 2016 Audi TT Introduction
Knowledge Assessment
An On-Line Knowledge Assessment (exam) is Available for this eSelf-Study Program.
The Knowledge Assessment is required for Certification credit.
You can find this Knowledge Assessment at:
www.accessaudi.com
From the accessaudi.com Homepage:
• Click on the “ACADEMY” tab
• Click on the “Academy site” link
• Click on the Course Catalog Search and select “970153 - 2015 Audi TT Electric, Electronics and Infotainment Systems”
Please submit any questions or inquiries via the Academy CRC Online Support Form
which is located under the “Support” tab or the “Contact Us” tab of the Academy CRC.
Thank you for reading this eSelf-Study Program and taking the assessment.
71
970153
All rights reserved.
Technical specifications are
subject to change without notice.
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2200 Ferdinand Porsche Drive
Herndon, VA 20171
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