Volkswagen Golf / Golf GTI / Jetta. Manual — part 1166

01-56

Multi-function steering
wheel through 11.01,
On Board Diagnostic
(OBD)

General information

The multi-function steering wheel

allows the various functions of the
radio and cruise control system to be
selected from the steering wheel.

The multi-function steering wheel is
comprised of the following
components:

Before troubleshooting or servicing,
technicians must be familiar with the
functions and operation specifics of
the applicable standard or optional
radio system and cruise control
system as controlled by the multi-
function steering wheel. Always read
the vehicle/radio owner's manual
and review all radio, tape player and
CD changer functions.

The On Board Diagnostic (OBD)
must be initiated at the
commencement of troubleshooting
and the stored information checked
with the VAG 1551/1552 scan tool or
VAS 5051 Vehicle Diagnostic,
Testing and Information system.

Note:

The following description and
illustrations deal specifically with the
VAG 1551 scan tool. VAG 1552 and
VAS 5051 procedures are similar.

The operating unit in steering

wheel with two sets of buttons on
left and right integrated
electronics.

The control module for the multi-

function steering wheel.

Multi-function steering wheel through 11.01, On Board Diagnostic (OBD)

13/2/2005

01-57

VAG 1551 Scan Tool (ST), connecting,
selecting functions and checking
control module versions

Prerequisites:

All fuses OK according to wiring diagram.

Battery (B+) voltage at least 9 Volts.

Notes:

VAG 1552 Scan Tool (ST) may be used instead

of the VAG 1551 Scan Tool (ST), however a
print-out is not possible.

The following procedure and display references

pertain only to VAG 1551 Scan Tool (ST).

Connecting

With ignition switched off, connect VAG 1551 Scan

Tool (ST) with adapter cable VAG 1551/3 to the
Data Link Connector (DLC) as follows:

- Remove cover for Data Link Connector (DLC)

under left instrument panel.

- Connect Scan Tool using adapter cable VAG

1551/3.

On Board Diagnostic (OBD)

HELP

1 - Rapid data transfer*

2 - Flash code output*

Indicated on display:

* Is displayed alternately

Multi-function steering wheel through 11.01, On Board Diagnostic (OBD)

13/2/2005

01-58

Functions, selecting

Notes:

If the display remains blank check Scan Tool

(ST) voltage supply according to wiring
diagram,

Electrical Wiring Diagrams, Troubleshooting and
Component Locations binder.

Additional operating instructions can be called

up by pressing the HELP button.

The

button is used to advance through the

program sequence.

In operating mode 1 "Rapid data transfer,"

function 00 "Automatic test sequence" can be
carried out. The DTC memory of all control
modules with OBD capability are checked
automatically.

- Switch on ignition.

- Switch on printer with the Print button (indicator

lamp in button lights up).

- Press button 1 for "Rapid data transfer" mode.

Rapid data transfer

HELP

Input address word XX

Indicated on display:

- Press buttons -1- and -6- to enter "Steering

wheel electronics" address word16.

Rapid data transfer

Q

16 Steering Wheel Electronics

Indicated on display:

- Confirm entry with Q button.

Rapid data transfer

Q

Tester sends address word 16

Indicated on display:

Multi-function steering wheel through 11.01, On Board Diagnostic (OBD)

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01-59

Check Control Module Versions

1J0907487 Steering wheel electron.x28

Coding 00008

WSC 00000

Indicated on display (example only):

Readout, top line

Readout, bottom line

CAUTION!

Part numbers are for reference
only. Always check with your
Parts Department for the latest
parts information.

1JO 907 487 = Control module

part number

Steering wheel electron. =

System designation

x28 = Software version

Coding 00008 = coding number

(dependant on control module
part number

Page 01-74

).

WSC 00000 = Workshop code

- Press

button.

Multi-function steering wheel through 11.01, On Board Diagnostic (OBD)

13/2/2005