AUDI A4 2000 B5 / 1.G Multi Functions Steering Wheel OBD Workshop Manual

01-84


Multi-function steering wheel,
On Board Diagnostic (OBD)

General notes


Technical features of the multi-function
steering wheel
The multi-function steering wheel enables the
radio to be operated from the steering wheel (the
most important functions) and contains an
extensive On Board Diagnostic (OBD).
The control module for the multi-function steering
wheel is equipped with a DTC memory. When
malfunctions occur in monitored components or
wiring, Diagnostic Trouble Codes (DTCs) are
stored in DTC memory with a description of the
malfunction type.
Pa
ge 1 of 25 Multi-function steerin
g wheel, On Board Dia
gnostic
(OBD
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.01.3

01-85

On Board Diagnostic (OBD), initiating
program


Additional information

Electrical Wiring Diagrams, Troubleshooting &
Component Locations binder
Technical service handbook.
Parts catalog
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p://127.0.0.1:8080/audi/servlet/Dis
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e=re
pair&id=AUDI.B5.EE02.01.3

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Safety precautions


If special testing equipment is required
during test drive, note the following:

WARNING!

To reduce the risk of accidents observe the
following:
During a road test in an airbag-equipped
vehicle, the VAS5051 tester or the VAG1551
scan tool must always be fastened to and
operated from the rear seat by a second
technician.
Pa
ge 3 of 25 Multi-function steerin
g wheel, On Board Dia
gnostic
(OBD
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.01.3

01-87

To reduce the risk of injury to people and or
damage to the electrical system and
components, observe the following:

Always switch ignition off before connecting or
disconnecting test/measurement tools.
It is possible that the control module will
recognize a malfunction and store a DTC during
some tests. Therefore, after completing all tests
and repairs, check and if necessary erase the
DTC memory.
Always switch ignition off before disconnecting
or connecting the battery. Failure to do so may
damage a control module.
Pa
ge 4 of 25 Multi-function steerin
g wheel, On Board Dia
gnostic
(OBD
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.01.3

01-88

Test requirements

Check fuse for function according to wiring
diagram.
Connect VAS5051 tester or VAG1551 scan tool
page 01
-108
.

Switch ignition on.

Notes:
If nothing is indicated on display, check voltage
supply for VAG 1551 scan tool according to
wiring diagram.
Additional instructions can be called up via the
HELP button on the scan tool.
The button is used for advancing through the
program sequence.

An incorrect entry can be canceled using the C
button.
Function 00 "Automatic test sequence" can be
performed in operating mode 1 "Rapid data
transfer". This automatically checks all control
Pa
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g wheel, On Board Dia
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)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.01.3

modules installed in the vehicle.
Pa
ge 6 of 25 Multi-function steerin
g wheel, On Board Dia
gnostic
(OBD
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.01.3

01-89

- Switch ignition on.

- Switch printer on via the PRINT button (indicator
lamp in button lights up).

- Press button -1- to select "Rapid data transfer"
operating mode 1. Rapid data transfer
HELP
Insert address word XX

Indicated on display
Address word for steering wheel electronics: 16
- Press buttons -1- and -6-.
Rapid data transfer
Q
16 - Steering wheel electronics

Indicated on display
- Press -Q- button to confirm input.
Pa
ge 7 of 25 Multi-function steerin
g wheel, On Board Dia
gnostic
(OBD
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.01.3

01-90

4B0907487E Steerin
g whl. electronics D00

Indicated on display after approx. 5 seconds:
4B0907487 E: Part number of steering wheel electronics - radio
operation (see also parts catalog) Steering wheel electronics: component markingD00: Software version of control module
-
Press button.
Rapid data transfer
HELP
Control module does not answer

If one of these messages is displayed, carry out trouble shooting
procedures according to the wiring diagram.
Electrical Wiring Diagrams, Troubleshooting & Component Locations
Rapid data transfer
HELP
Error in communication link

Rapid data transfer
HELP
K wire not switching to Ground

Rapid data transfer
HELP
K wire not switching to B+

Pa
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g wheel, On Board Dia
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11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.01.3

01-91

Rapid data transfer
HELP
Select function XX

Indicated on display
On Board Diagnostic (OBD) functions
The following functions are possible:
01 - Check Control Module Versions page 01
-92
.
02 - Check DTC Memory page 01
-93
.
03 - Output Diagnostic Test Mode page 01
-97
.
05 - Erase DTC Memory page 01
-100
.
06 - End Output page 01
-102
.
08 - Read Measuring Value Block page 01
-103
. - Pressing the HELP button will print out an overview of all of the
possible functions.
-
Press the button to continue program sequence.
Pa
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g wheel, On Board Dia
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11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.01.3

01-92

Check Control Module Versions (scan
tool function 01)

Rapid data transfer
HELP
Select function XX

Indicated on display
- Press buttons -0- and 1-. This selects "Check control module" function
01.
Rapid data transfer
Q
01 - Check Control Module Versions

Indicated on display
- Confirm input using the -Q- button.
4B0907487E steering whl. electronics D00

Indicated on display after approx. 5 seconds:
4B0907487 E: Part number of steering wheel electronics - radio
operation (see also parts catalog) Steering wheel electronics: component markingD00: Software version of control module
-
Press button.
Pa
ge 10 of 25 Multi-function steerin
g wheel, On Board Dia
gnostic
(OBD
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.01.3