Audi A4. Body repair manual - part 46
Ultrasonic interior monitoring On Board Diagnostic (OBD)
End Output (scan tool function 06)
Carrying out "End Output" function 06
Rapid data transfer
HELP
Indicated on display
Select function XX
- Press buttons -0- and -6- to select "End Output" function 06.
Rapid data transfer
Q
Indicated on display
06 - End Output
- Press -Q- button to confirm input.
Rapid data transfer
HELP
Indicated on display
Insert address word XX
- Switch ignition off.
- Disconnect VAG1551 Scan Tool (ST) from Data Link Connector (DLC).
Instrument cluster, On Board Diagnostic (OBD) (through M.Y. 1999)
Instrument cluster, On Board
Diagnostic (OBD) (through
M.Y. 1999)
General information
Instrument cluster technology
The Audi A4 instrument cluster is available in two
versions; the low-line version with "mini-check"
system and the high-line version with an LCD
multi-function display.
The mini-check system monitors the brake
system, Engine Coolant Temperature (ECT), fuel
level and engine oil pressure.
The multi-function display contains the following
functions:
Auto check system with radio station and
telephone displays
Ambient outside temperature display
On-board computer display
Transmission Range (TR) selector lever display
for automatic transmission
Instrument cluster, On Board Diagnostic (OBD) (through M.Y. 1999)
Instrument cluster, On Board Diagnostic (OBD) (through M.Y. 1999)
The speedometer contains a LCD display for the
odometer, a trip odometer and the Service
Reminder Indicator (SRI).
Indicator lamps are integrated in the
speedometer and tachometer.
Accessory instruments are integrated into the
instrument cluster.
The instrument cluster is controlled by a
microprocessor and has extensive On Board
Diagnostic (OBD) capabilities. If any component
exhibit signs of failure, a Diagnostic Trouble
Code (DTC) is stored in the instrument cluster
DTC memory. The DTC can then be identified
using the VAG1551 or VAG1552 Scan Tool
(ST).
Instrument cluster, On Board Diagnostic (OBD) (through M.Y. 1999)
Note:
The descriptions in this Repair Manual reference
the VAS5051 Diagnostic Operation Center
(DOC) and the VAG1551 Scan Tool (ST).
The following Adaptations (adjustments) can be
carried out using the tool:
Adaptation of the fuel sensor characteristics
Adaptation of the fuel consumption display
Coding the language versions for the on-board
computer and Auto Check system.
Adaptation of the Service Reminder Indicator
(SRI)
Adaptation of the odometer after instrument
cluster replacement.
Instrument cluster, On Board Diagnostic (OBD) (through M.Y. 1999)
Instrument cluster replacement notes
Do not disassemble the instrument cluster.
All warning and indicator bulbs can be replaced
separately: m.y.
replacing the complete instrument cluster.
If necessary, the instrument cluster should be
exchanged within the parts exchange program.
Fill in the Failure Description Form and send it
in, together with the instrument cluster.
The instrument cluster must be sent back in its
original packaging.
When replacing the instrument cluster, set the
Odometer display and the Service Reminder
Indicator (SRI) using the VAG1551 Scan Tool
Instrument cluster, On Board Diagnostic (OBD) (through M.Y. 1999)
On Board Diagnostic (OBD), initiating
program
Special tools, test equipment and auxiliary
items
VAS5051 Diagnostic Operation Center (DOC)
and/or VAG1551 Scan Tool (ST).
VAG1551/3 adapter cable
Test requirements
Fuses OK
Electrical Wiring Diagrams Troubleshooting &
Component Locations
Instrument cluster coding checked according
Center (DOC) or
Instrument cluster, On Board Diagnostic (OBD) (through M.Y. 1999)
Instrument cluster, On Board Diagnostic (OBD) (through M.Y. 1999)
Notes:
If the VAG1551 display remains blank, check
the power supply.
Electrical Wiring Diagrams Troubleshooting &
Component Locations
Press the HELP button for additional operating
instructions.
Press the button to advance through the
program sequence.
An incorrect entry can be cancelled by pressing
the -C- button.
In "Rapid data transfer" operating mode 1, the
"Automatic Test Sequence" (address word 00)
can be carried out. This will automatically check
the DTC memories of all of the control modules
in the vehicle which have OBD capability.
Instrument cluster, On Board Diagnostic (OBD) (through M.Y. 1999)
- Switch ignition on.
- Switch printer on by pressing PRINT button
(indicator light in button comes on).
- Press button -1- to select "Rapid data transfer"
operating mode 1.
Rapid data transfer
HELP
Indicated on display
Insert address word XX
Address word for instrument cluster: 17
- Press buttons -1- and -7-.
Rapid data transfer
Q
Indicated on display
17 - Instrument Cluster
- Press -Q- button to confirm input.
8D0919930L B5-Instrument Cluster VDOX16
Indicated on display (after approx. 5 seconds) (example)
Coding 00262
WSC 06812
8D0919930L: part number of instrument cluster (see also parts
exchange program)
B5-Instrument Cluster: component designation
VDO: manufacturer ID (UN4 = Nippon Seiki, VD0 = VDO)
X16: instrument cluster software version
Coding 00262: instrument cluster coding
WSC 06812: dealership number
Instrument cluster, On Board Diagnostic (OBD) (through M.Y. 1999)
Note:
- Press button.
Rapid data transfer
HELP
- If one of these four messages is displayed, carry out troubleshooting
Control module does not answer
procedures:
Electrical Wiring Diagrams Troubleshooting & Component Locations
Rapid data transfer
HELP
or
Error in communication link
Rapid data transfer
HELP
or
K wire not switching to Ground
Rapid data transfer
HELP
or
K wire not switching to B+
Rapid data transfer
HELP
Indicated on display
Select function XX
When the HELP button is pressed, a list of possible functions prints out.
- Press button to advance through program sequence.
Instrument cluster, On Board Diagnostic (OBD) (through M.Y. 1999)
On Board Diagnostic (OBD) functions
The following functions are possible:
Instrument cluster, On Board Diagnostic (OBD) (through M.Y. 1999)
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 by pressing PRINT button
(indicator light in button comes on).
Rapid data transfer
HELP
Indicated on display
Select function XX
- Press buttons -0- and -2- to select "Check DTC Memory" function 02.
Rapid data transfer
Q
Indicated on display
02 - Check DTC Memory
- Press -Q- button to confirm input.
X DTC recognized
The number of stored DTCs appears in the display.
The stored DTCs are displayed and printed out one after the other.