Audi A3 1997 Manual page 11

font=symbol charset=fontspecific code=042 is displayed alternately.
V.A.G self-diagnosis
1 - Rapid data transfer*
2 - Flash code output*
Notes:
◆ If nothing is displayed on the fault reader V.A.G 1551, check wiring for diagnostic connector according to
current flow diagram.
=> Current Flow Diagrams, Electrical Fault-Finding and Fitting Locations
◆ Depending on the program, additional operating instructions can be printed out by pressing the HELP key
on V.A.G 1551.
◆ Use the ⇒key to continue through the program.
◆ The PRINT key switches on the printer (lamp in the key lights up).
◆ The fault memory cannot be erased until it has been interrogated.
- Switch on ignition/start engine.
- Switch on compressor (press "Auto" button of operating and display unit -E87).
- Press key -1- to select "Rapid data transfer" mode.
Note:
To check the vehicle speed signal (in the "Reading measured value block" function), move vehicle a few metres
at walking pace before entering into self-diagnosis mode.
-> Display:
Rapid data transfer
Enter address word XX
- Press keys -0- and -8- (08 enters address word for testing the vehicle's "electronic climate/heating control").
-> Indicated on display:
Rapid data transfer
08 - Electronic climate/heating control
- Press Q to confirm entry.
-> Display following input of the address word 08:
Rapid data transfer
Tester transmits address word 08
-> After a short time, the control unit identification, the code and the workshop code for the V.A.G 1551 are
displayed:
8L0 820 043 X A3
cond. DXX
Code XXXXX WSC ZZZZZ
Control unit identification (example)
- 8L0 820 043 X
- A3 Full air conditioner Audi A3 control unit for fully
- DXX
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
- Code XXXXX:
HELP
HELP
Q
Fully aut. air
Part-No.; assignment
=> Parts List
automatic air conditioner
Control unit data status (soft‐
ware type)
with respect to the correctness of information in this document. Copyright by AUDI AG.
Different codings => Page
27
2.1 - Connecting vehicle diagnosis, measurement and information system VAS 5051 or
Heating, Air Conditioner - Edition 06.2000
fault reader V.A.G 1551 and selecting function
Audi A3 1997 ➤
5