Audi A3 1997 - Page 11

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V.A.G self-diagnosis HELP
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 HELP
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 Q
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 Fully aut. air
cond. DXX
Code XXXXX WSC ZZZZZ
Control unit identification (example)
- 8L0 820 043 X Part-No.; assignment
=> Parts List
- A3 Full air conditioner Audi A3 control unit for fully
automatic air conditioner
- DXX Control unit data status (soft‐
ware type)
- Code XXXXX: Different codings => Page
27
Audi A3 1997 ➤
Heating, Air Conditioner - Edition 06.2000
2.1 - Connecting vehicle diagnosis, measurement and information system VAS 5051 or
fault reader V.A.G 1551 and selecting function 5