NHTSA ID Number: 10250639
Manufacturer Communication Number: 970243
TSB/Document Date: 2024-02-26
Summary
The 2015 Audi A3 Onboard Power Supply and Networking Systems
Left Front Turn Signal Bulb
M5
Sidemarker2)
Left Daytime Running Lamp and
Position Lamp LED Module
L176
Left HID Headlamp Control Module
J343
Left Daytime Running Lamp and
Position Lamp Control Module
J860
610_048
Light functions
Illuminants used
Power
Daytime running light
2 LEDs with plastic optical fibres
18 watts
dimmed to approx. 25 %
Low beam
Gas discharge lamp D3S
35 watts
Turn signal
Bulb PSY24W
24 watts
Sidemarker2)
LED
0.6 watts
High beam (change-over by shutter)
Activation mechanism
The functions of the bi-xenon headlights are activated by
Vehicle Electrical System Control Module J519. The
Daytime Running Light for the side on which a turn is being
made are switched off for the duration of the turn signal
activation.
Left and Right Low Beam Headlamp Reflector Motors V294
and V295 are used to change over between low and high
beam operation.
30
LED headlights
PR no.: 8IT
All light functions are performed by LEDs. No fog lights are
fitted in models equipped with LED headlights. The allweather light function is available as a substitute.
Left headlight range
servomotor
Parking light / daytime running light /
turn signal
Cornering light
Left headlight fan
Low beam
Sidemarker2)
High beam
LED control unit
(Parking light, daytime
running light, turn signal,
sidemarker2))
Headlight range control
power module
LED power module
(Low beam, High beam,
cornering light, fan activation)
610_051
Light functions
Illuminants used
Power
Daytime running light
4 LEDs (1x 3 LED chip, 1x 1 LED chip)
14 watts
dimmed to approximately. 15 %
9 LEDs (2x 5 LED chip, 2x 2 LED chip)
41 watts
8 LEDs (2x 4 LED chips)
36 watts
Cornering light
4 LEDs (2x 2 LED chips)
18 watts
4 yellow LEDs (1x 3 LED chip, 1x 1 LED chip)
16 watts
LED
0.6 watts
Sidemarker
2)
31
Headlight range control
Dynamic headlight range control
Vehicles with gas discharge headlights or LED headlights
are equipped with a dynamic headlight range control
system. Depending on the altitude and movement of the
vehicle, headlight range control servomotors V48 and V49
correct the range of the headlights.
The headlight range control configurations described below
are available for the bi-xenon headlights and the bi-xenon
headlights with adaptive light.
Convenience CAN bus
Schematic diagram of the activation mechanism for bi-xenon headlights
Bi-xenon headlight
(left-hand side of vehicle)
Discrete lines
Vehicle Electrical
System Control
Module
J519
Discrete lines
Extended CAN bus
Headlamp Range
Control Module
J431
Left Daytime Running Lamp and Position Lamp Control Module
J860
Left Front Turn Signal Bulb M5
Left HID Headlamp Control Module J343
Left Headlamp Beam Adjustment Motor V48
Discrete line
610_061
Left Rear Level Control System Sensor
G76
Extended CAN bus
Convenience CAN bus
Schematic diagram of the activation mechanism for LED headlights
LED headlights
(left-hand side of vehicle)
Discrete lines
Vehicle Electrical
System Control
Module
J519
Cornering Lamp and
Headlamp Range
Control Module
J745
Private CAN bus (sub-bus)
LED control unit
(Parking light and daytime running light / turn signal)
(Sidemarker with SAE1))
LED power module
(Low beam, High beam and cornering light)
Discrete lines
Discrete line
Left Rear Level
Control System
Sensor
G76
Left headlight fan
Headlight range control power module
Discrete lines
Left headlight range control servomotor
32
610_063
Headlight range control in vehicles with wheel damping electronics Audi
magnetic ride
The 2015 S3 can be optionally equipped with Audi magnetic ride. These vehicles have four level sensors to
monitor vehicle ride height. Electronic Damping Control
Module J250 monitors the level sensors through discrete
wires.
J250 communicates over the Suspension CAN and transfers
information about vehicle ride height to the headlight
range control module of the particular headlight system
installed.
Schematic diagram of the activation mechanism for vehicles with Audi magnetic ride
Headlamp Range Control Module 1
Data Bus On Board Diagnostic
Interface
J533
Cornering Lamp and Headlamp
Range Control Module J745 2
Discrete line
Private CAN
bus (sub-bus)
Headlight range control
servomotors1)
Power module for headlights2)
Extended CAN bus
Suspension CAN bus
Discrete line
Headlight range control
servomotors2)
Cornering Lamp and Headlamp
Range Control Module J745 3
Private CAN
bus (sub-bus)
Power module for headlight range
adjustment3)
Discrete line
Headlight range control
servomotors3)
Electronic Damping Control Module J250
Discrete lines
Left Front Level Control System Sensor
G78
Right Front Level
Control System
Sensor
G289
Left Rear Level Control System Sensor
G76
Right Rear Level
Control System
Sensor
G77
610_064
with bi-xenon headlights
with bi-xenon headlights with adaptive light (not for the North American region)
3)
with LED headlights
1)
2)
33
Tail lights
LED tail light
PR no.: 8SK
LED tail lights are standard equipment on the Audi A3 for
the North American region. They are activated by Vehicle
Electrical System Control Module J519.
The bulbs of the rear hatch light can be accessed via a
service flap. LEDs cannot be replaced. If faulty, the tail light
in question must be replaced.
The tail lights are also activated if the vehicle is equipped
with a Coming Home / Leaving Home function. The rear fog
light and the reversing light are deactivated when the rear
hatch is opened.
Brake light
610_066
Light functions
Illuminants used
Activation mechanism
Power
9 LEDs
100 %
approx. 3.5 watts
2 LEDs with plastic optical fibres
100 %
approx. 2 watts
Turn signal
20 LEDs
100 %
approx. 3.5 watts
Bulb H6W
100 %
6 watts
34
High-mounted brake light
The high-mounted brake light is attached to the rear
window. It has a total of 48 LEDs. The component parts
cannot be replaced. If defective, the entire module must
be replaced.
The component parts of the high-level brake light cannot
be replaced. If faulty, the complete component must be
replaced. This is only possible after removing the rear
spoiler.
610_067a
High level brake light
M25
License lights
The license plate lights for the 2015 A3 sedan feature LED
technology. Both lights house two LEDs. As with the highmounted rear brake light, they are activated by Vehicle
Electrical System Control Module J519.
610_068
35
eSelf Study Programs
For further information about the technology of the The 2015 Audi A3, refer to the following eSelf Study Programs.
eSelf Study Program 990143
eSelf Study Program 970343
The 2015 Audi A3 Introduction
The 2015 Audi A3 Vehicle Electronics
and Driver Assistance Systems
610_078a
SSP 990143
The 2015
Audi A3 Introduction
2
610_079
SSP 970343
The 2015 Audi A3 Vehicle
Electronics and Drivers
Assistance Systems
610_080a
SSP 960143
The 2015 Audi A3 Running
Gear and Suspension Systems
36
Notes
37
Knowledge Assessment
An On-Line Knowledge Assessment (exam) is Available for this eSelf-Study Program.
The Knowledge Assessment is required for Certification.
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 “970243 - The 2015 Audi A3 Onboard Power Supply and Networking“
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.
38
970243
All rights reserved.
Technical specifications are
subject to change without notice.
Audi of America, LLC
2200 Ferdinand Porsche Drive
Herndon, VA 20171
39
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TSB/Document ID: 970243
Replacement Service Bulletin Number:
MFR Communication Date: 2013-11-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: POWER TRAIN
MFR Component System:
MFR Component Subsystem:
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