ignition AUDI A4 1999 B5 / 1.G Multi Functions Steering Wheel OBD Workshop Manual

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.
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ge 4 of 25 Multi-function steerin
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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
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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.
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e=re
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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.
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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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01-97

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.
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01-102

End Output (scan tool function 06)


- Press buttons -0- and -6-. This selects "End
Output", function 06.
Rapid data transfer
Q
06 - End output

Indicated on display
- Confirm input using the -Q- button.
Rapid data transfer
HELP
Insert address word XX

Indicated on display
- Switch ignition off.
- Disconnect harness connectors for the VAG1551 scan tool
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ge 20 of 25 Multi-function steerin
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)
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yp
e=re
pair&id=AUDI.B5.EE02.01.3