airbag AUDI A6 2005 C5 / 2.G Electrics System Training Manual

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Overview
1 Auxiliary heating control unit J364
2 Control unit for ABS with EDL J104
3 Control unit for distance control J428
4 Transmitter unit in wheel well for tyre pressure
monitoring, front left G431
5 Control unit for on-board power supply J519
6 Door control unit, driver's side J386
7 Control unit for access and
start authorisation J518
8 Control unit in dash panel insert J285
9 Control unit for steering column electronics J527
10 Control unit for telephone, telematics J526
Telephone transmitter and receiver R36
11 Engine control unit J623
12 Climatronic control unit J25513 Control unit for seat adjustment with steering-
column adjustment memory J136
14 Level control unit J197
Control unit for headlight range control J431
Control unit for tyre pressure monitoring J502
Control unit 2 for onboard power supply J520
Control unit for display and operating unit for
front information J523
Data bus diagnosis interface J533
Antenna read-in unit for keyless access
authorisation J723
15 CD changer R41
CD ROM drive R92
16 Door control unit, rear left J388
17 Airbag control unit J234
Control unit installation positions

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Bus topology
Overview
NOX sensor
J583
Rotation rate sensor
G202
Seat occupied
recognition
J706
Power module
for left headlight
J667
Power m odule for
right headlight
J668
Level control
J197 Electric parking
and hand brake
J540 Headlight range
control
J431 Automatic
transmission
J217 Airbag
J234 ABS with EDL
J104 Engine electronics 1
J623 Diagnosis connection
T16Control unit in dash
panel insert
J285Distance control
J428
Data bus diagnosis
for data bus
J533
Door control unit,
driver’s side
J386
Door control unit,
passenger’s side
J387
Door control unit,
rear left
J388
Door control unit,
rear right
J389
Seat adjustment
with memory
Steering column
adjustment
J136
Seat adjustment
with memory,
passenger’s side
J521
Trailer detection
J345
Steering column
electronics
J527
Multi-function
steering wheel
J453 Steering-angle
sensor
G85Power management
J644
Auxiliary heating
J364
Parking aid
J446
On-board power
supply 2
J520
Access and
start authorisation
J518
On-board power
supply
J519
Centr. contr. unit for
convenience system
J393
Climatronic
J255
Tyre pressure
monitoring
J502

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New identity
As is already the case with the Audi A8 ‘03 , if a
control unit is stolen, it is no longer necessary
(for safety reasons) to also replace the remaining
control units, which are integrated in the
immobiliser.
In this case, the "New Identity" function must be
used for the control unit for access and start
authorisation and the engine control unit.
It is only a matter of installing a new lock set before
using the "New Identity" function.
The switch for access and start authorisation E415
reads in the key code in electronic form only.
The hinged bit coding is not evaluated signal.
The ignition switch is not par t of the lock set for this
reason.
Component protection
As is already the case with the Audi A8 ’03, the
Convenience and Infotainment control units are also
integrated within the "Component protection" safety
system.
As a result, these control units must be adapted to
the specific vehicle once they have been installed.
The data bus diagnosis interface is integrated into
the "Component protection" function for the first
time. Since component protection works via a
number of control units, the Startup menu in
"Guided fault-finding" is not assigned to any one
control unit and can be found directly under the
self-diagnosis systems.
326_122 326_075
Audi
Audi A6 2005>
2005 (5)
Saloon
BBJ 3.0l Motronic / 160 kW Guided fault-finding
Function test
Teaching driving authorisation
systems
Te s t i n g q u e r y
The following options are available:
1. Adapt the driving authorisation system to suit
the existing immobiliser
2. Assign a new identity to the immobiliser and
re-teach the components
3. Terminate the function test
326_074
Audi
Audi A6 2005>
2005 (5)
Saloon
BBJ 3.0l Motronic / 160 kW Guided fault-finding
Function/component selection
Selecting a function or component
Body (Rep. Gr. 01; 50 - 97)
Electrical system (Rep. Gr. 01; 27, 90 - 97)
Component protection functions
13 – Distance control, Component protection
05 – Access and start authorisation, Component protection
15 – Airbag, Component protection
06 – Seat adjust. with memory, front pass. side, Comp. protection
36 – Seat adjust. with memory, front driver’s side, Comp. protect.
46 – Central module for convenience system, Comp. protection
66 – Seat adjustment with memory, rear, Component protection
07 – Display/operator unit, front, Component protection
17 – Dash panel insert, Component protection
27 – Display/operating unit, rear, Component protection
Switch for access and start authorisation E415

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326_120
V53 Motor for tailgate/boot lid central locking
V91 Motor for rear sun blind
V155 Motor for tank cap locking
W6 Glove compartment light
W14 Illuminated make-up mirror, passenger’s side
W18 Boot light, left
W20 Illuminated make-up mirror, driver’s side
W35 Boot light, right
W45 Footwell light, rear left
W46 Footwell light, rear right
X Number plate light
Z1 Heated rear window Additional signals
1CAN Convenience High
2CAN Convenience Low
3 Brake light switch F
4 ESP brake signal from control unit for ABS
with EDL J104
5 Crash signal from airbag control unit J234
6 "Doors OPEN" signal to level control unit J197
7 "Adaptation flashing" signal from control unit
for garage door opening J530
8 "Release" signal to motor for sliding roof V1
9 + 10 "Interior light" activation signal
to roof module W1