display AUDI A4 1996 B5 / 1.G Multi Functions Steering Wheel OBD Workshop Manual

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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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
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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
ge 8 of 25 Multi-function steerin
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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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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
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)
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yp
e=re
pair&id=AUDI.B5.EE02.01.3

01-93

Check DTC Memory (scan tool function
02)


Note:
The displayed DTC information is updated only
when initiating OBD or with "Erase DTC Memory"
function 05.

- Switch printer on via the PRINT button (indicator
lamp in button lights up).
Rapid data transfer
HELP
Select function XX

Indicated on display
- Press buttons -0- and -2-. This selects "Check DTC memory", function
02.
Rapid data transfer
Q
02 - Check DTC Memory

Indicated on display
- Confirm input using the -Q- button.
X DTC reco
gnized

The number of stored malfunctions appears in the display.
The stored malfunctions are displayed and printed out one after the
other.
- Check printout against DTC table and repair all malfunctions as
necessary page 01
-95
.
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01-94

No DTC recognized

If "No DTC recognized" is displayed, the program will return to "Select
function XX" after the button is pressed.
Rapid data transfer
HELP
Select function XX

Indicated on display
If something else is displayed:
Scan Tool operating instructions - End output (Function 06) page 01
-102
- Switch off ignition and disconnect diagnostic connector.
Pa
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01-95
Diagnostic Trouble Code (DTC) table

Notes:

The following list contains all malfunctions that can be recognized by the multi-function steering wheel and printed out by
the VAG1551 scan tool. The malfunctions are listed in order according to their 5-digit numbers.
DTC numbers appear only on the print-out.
Before replacing a component shown as faulty, check the wiring and connections to the component as well as the Ground
(GND) connections according to wiring diagram.
After repairs and function test of the system, DTC memory must always be checked again using the VAG1551 scan tool
and erased.
DTC memory stores all static and sporadic malfunctions: If a malfunction occurs and persists for at least 2 seconds, it is
identified as a static malfunction. If a malfunction does not occur again, it is registered as sporadic. "/SP" will appear at the
right of the scan tool display.
When the ignition is switched on, all existing malfunctions are automatically re-classified as sporadic malfunctions and will
only register as static malfunctions if they still occur after testing.
Sporadic malfunctions which no longer occur during 50 driving cycles (ignition on at least 5 minutes, vehicle speed 30
km/h) are erased automatically.
The three digit malfunction type number appearing next to the DTC is a data code and can be ignored.
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01-96

DTC
VAG1551 scan tool
display Possible cause
Corrective action
01426
Control unit in steering
wheel -E221

No communication
Implausible signal
Open circuit in wiring - no connection between
interface and steering wheel
Unintelligible messages on CAN-bus (interface and
buttons in steering wheel are connected via a CAN-
bus) Electrical Wiring Diagrams,
Troubleshooting & Component
Locations - Locate malfunction using wiring
diagram
- Repair open circuit
- Check wires between interface and
steering wheel
65535
Control module
malfunctioning

Faulty
Control module for multi-function steering wheel -
J453- faulty - Replace control module for multi-
function steering wheel -J453-
Pa
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01-97

Output Diagnostic Test Mode (DTM)
(scan tool function 03)


Notes:

Output Diagnostic Test Mode is only possible
when vehicle is stationary and engine is not
running!
If malfunctions are found during output
Diagnostic Test Mode, determine cause of
malfunction and repair if necessary.

In the function " output Diagnostic Test Mode
(DTM)" functions of the system are checked

Perform Output Diagnostic Test Mode

- Switch ignition on.

- Switch on radio.

- Press buttons -0- and -3-. This selects "output
Diagnostic Test Mode (DTM)", function 3.
Rapid data transfer
Q
03 - Output Dia
gnostic Test Mode

Indicated on display
- Press -Q- button to confirm input.
Pa
ge 15 of 25 Multi-function steerin
g wheel, On Board Dia
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)
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.01.3