Equipment

Optional equipment
Version:
•
Parking aid plus, PR No.: 7X2

Installation position

Behind instrument panel on left side

Tasks

Reads signal from ultrasound sensors and issues audible or visual warnings

Address Word

76

Data bus communication

Suspension CAN bus participant

Special feature

Address Word changed from 10 to 76 . Will only control front and rear acoustic sensors on vehicles for the
North American region.

J791

610_032

23

Audi magnetic ride
Designation

Electronic Damping Control Module J250

Equipment

Optional equipment, PR No.: 2H7

Installation position

Under the right-hand front seat

Task

Adaptation of the damping characteristic

Address Word

14

Data bus communication

Suspension CAN bus participant

J250

610_033

Engine control
Designation

Engine Control Module J623

Equipment

Always installed

Installation position

In the engine compartment between battery and E-box

Task

Controlling the engine operating characteristics

Address Word

01

Data bus communication

Powertrain CAN bus participant

Special features

• Engine Control Modules have differing terminating connectors depending on engine version installed
• Immobilizer participant
• Vehicles with an anti-theft alarm have an anti-theft device (sheet metal cover with shear bolts) over the
ECM

J623

Shear bolt 1
Antitheft protection
Shear bolt 2

610_034
24

Airbag / Audi pre sense basic
Designation

Airbag Control Module J234

Equipment

• Always installed
• Audi pre sense basic, PR No.: 7W1. Optional Audi pre sense front, PR No.: 6K3

Installation position

On the center tunnel in front of the center console

Tasks

• Deployment of the airbags
• Audi pre sense

Address Word

15

Data bus communication

• Powertrain CAN bus participant
• J234 is the LIN master for front left and right Seat Belt Tensioner Control Modules J854 and J855.
• In vehicles specified for the North American market, J234 is the LIN master for Passenger Occupant
Detection System Control Module J706

J234

610_035

S tronic
Designation

DSG Transmission Mechatronic J743

Equipment

Always installed on vehicles with S tronic

Installation position

On the transmission

Task

Controling the dual clutch transmission

Address Word

02

Data bus communication

Powertrain CAN bus participant

Special feature

Dual clutch transmission 09D (6-speed) is used.

J743

610_036

25

Transmission selector lever sensors
Designation

Selector Lever Sensor System Control Module J587

Equipment

All vehicles with S tronic

Installation position

On the selector lever housing

Tasks

• Signalling the selector lever position
• Signalling the tiptronic commands

Address Word

81

Data bus communication

Powertrain CAN bus participant

Special feature

The control module can only be replaced together with the selector lever

J587

610_037

Headlight range control on vehicles with bi-xenon headlights
Designation

Headlamp Range Control Module J431

Equipment

All vehicles with bi-xenon headlights, PR No.: 8IG

Installation position

Behind left side of instrument panel

Task

Dynamic headlight range control

Address Word

55

Data bus communication

CAN-Extended bus participant

J431

610_039

26

Headlight range control on vehicles with LED headlights
Designation

Cornering Lamp and Headlamp Range Control Module J745

Equipment

On all vehicles with:
•
LED headlinghts, PR No.: 8IT

Installation position

Behind the instrument panel on the left side

Task

• Dynamic headlight range control
• Controlling the light profiles
• Controlling the adaptive light

Address Word

55

Data bus communication

CAN-Extended bus participant

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
Designation

Lane Change Assistance Control Module J769
Lane Change Assistance Control Module 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

Address Word

3C

Data bus communication

• J769 (master) CAN-Extended bus participant
• J770 (slave) connected to J769 via private CAN participant

Special feature

The control modules are mounted in the bumper cover. The system must be calibrated after removal and
installation.

J770

J769

610_040

27

Audi active lane assist (lane departure warning system)
Designation

Driver Assistance Systems Front Camera R242

Equipment

Optional equipment
•
Audi active lane assist, PR No.: 7Y5

Installation position

On the windshield, above the base of the interior rear-view mirror

Task

Scanning and imaging of traffic, traffic signs and lane markers

Address Word

A5

Data bus communication

CAN-Extended bus participant

Special feature

R242 now has all software needed for active lane assist operation

R242

610_042

28

Exterior lighting
Light switch

Headlamp Range Control Adjuster
E102*

For the 2015 A3, Light Switch E1 is a LIN slave of Vehicle
Electrical System Control Module J519. The operating
concept has been adopted from other Audi models.

Designation

Light Switch E1

Equipment

Always installed

Installation position

Left side of instrument panel

Task

To indicate the driver's preferred light
setting to Vehicle Electrical System
Control Module J519

Address Word

None, LIN slave, measurement values
and diagnostics J519
Control panel*

Rotary switch

Display and instrument
lighting controller
610_045

Function
Upper control panel*
Rotary switch:
0
Lights off (in some countries the daytime running
light is switched on automatically when ignition
is switched on).
AUTO

Fog light
All-weather light in vehicles with LED headlights

The automatic daytime running light is switched
on and off depending on the light sensor
Lower control panel**
Rear fog light

Parking light
Low beam

Electrical connections and circuit
Vehicle Electrical System Control Module J519 reads the
four positions of the rotary switch, button operations and
the position of the instrument lighting controller (where
applicable) via the LIN circuit. All commands for the switch
lighting and the warning lamps of the individual functions
are sent to the light switch by J519.
A redundancy wire is used to determine the plausibility of
the switch positions. In the event of a short circuit or open
circuit in the LIN or redundancy lines, the emergency light
function is activated by J519 (low beams are switched on)
and a DTC is entered in J519.
Headlamp Range Control 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.

*These components are not installed on the 2015 Audi A3 at this time.
** Available on S3 models only
29

Light switch
E1

Low beam

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

Headlights
Bi-xenon headlight
PR no.: 8IG
The component parts of the bi-xenon headlight shown can
be replaced with the exception of the LED module for
Daytime Running Lights. In the event a DRL failure, the
entire headlight assembly must be replaced.

Left HID Headlamp Bulb
L13
Left Headlamp Beam
Adjustment Motor
V48