Page 13 of 166
01-11
      
-  If no display appears, check diagnostic 
cables: 
     
       Electrical Wiring Diagrams, Troubleshooting & 
Component Locations         Depending on the function required:  
     
-  Switch ignition on.
     
   or
     
   Start engine   Page 01
-6 , table of available 
functions. 
     
-  Switch on printer with PRINT button (indicator 
light in button lights up). 
     
-  Press button -1- to select "Rapid data transfer" 
operating mode. Rapid data transfer 
HELP
Insert address word XX
    
Indicated on display:  
Rapid data transfer 
Q
01 - En
gine Electronics
    
-  Press buttons -0- and -1- to insert "Engine electronics" address word 
01. 
Pa
ge 13 of 166 Motronic s
ystem, On Board Dia
gnostic 
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1 
         
        
        
     
        
        Page 18 of 166
01-15
      
Diagnostic Trouble Code (DTC) Memory, 
checking and erasing
 
     
-  Connect vehicle diagnostic, testing and 
information system VAS5051 or VAG1551 scan 
tool and select "Engine Electronics" by entering 
address word 01   Page 01
-9. When doing this 
the engine must be idling. 
      Only if engine does not start:  
     
-  Check engine with ignition switched on.
     
-  Switch on printer with PRINT button (indicator 
light in button lights up). Rapid data transfer 
HELP
Select function XX
    
Indicated on display  
-  Operate scan tool according to information on display:
-  Press buttons -0- and -2- to select function "Check DTC Memory" and 
confirm entry with -Q- button. 
Pa
ge 18 of 166 Motronic s
ystem, On Board Dia
gnostic 
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1 
         
        
        
     
        
        Page 20 of 166
01-17
      
- 
Press  button.Rapid data transfer 
HELP
Select function XX
    
Indicated on display:  
Notes:   -  Press buttons -0- and -5- to select function "DTC Memory" and confirm 
entry with -Q- button. 
Attention!DTC memor
y was not checked
    
Indicated on display: 
Test sequence has not been followed. 
- Check DTC memory. 
Under the following conditions the DTC memory will not be erased: 
If Ignition was switched off after DTC memory has been checked.A static malfunction has not been eliminated.
Pa
ge 20 of 166 Motronic s
ystem, On Board Dia
gnostic 
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1 
         
        
        
     
        
        Page 21 of 166
01-18
 
Rapid data transfer DTC Memor
y is erased!
    
Indicated on display:  
Note:  
During testing and repair work, malfunctions can be recognized from other 
control modules (e.g. disconnected harness connectors). Therefore on 
completion, the DTC memories of all control modules must be checked 
and erased. 
End output  - 
Press button.-  After repairs, check DTC memory again.
Rapid data transfer 
HELP
Select function XX
    
Indicated on display:  
-  Press buttons -0- and -6- to select function "End Output" and confirm 
entry with -Q- button. 
Rapid data transfer 
HELP
Insert address word XX
    
Indicated on display:  
-  Switch ignition off and disconnect diagnostic connector.
Pa
ge 21 of 166 Motronic s
ystem, On Board Dia
gnostic 
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1 
         
        
        
     
        
        Page 95 of 166
01-77
      
Test requirements  
     
Fuses for engine electronics OK 
     Fuel pump relay OK 
     
-  Connect vehicle diagnostic, testing and 
information system VAS 5051 or VAG1551 scan 
tool and select engine electronics control 
module by entering address word "01"   Page 01
-9 . When doing this the ignition must be 
switched on. 
Rapid data transfer 
HELP
Select function XX
    
Indicated on display  
-  Press buttons -0- and -3- to select function "Output Diagnostic Test 
Mode." 
Rapid data transfer 
Q
03 - Output Dia
gnostic Test Mode
    
Indicated on display  
Pa
ge 95 of 166 Motronic s
ystem, On Board Dia
gnostic 
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1 
         
        
        
     
        
        Page 109 of 166
01-90
      
-  Press buttons -0- and -4- to select function 
"Basic Setting" System in Basic Settin
g 
04 - Basic Settin
g
    
Indicated on display  
-  Confirm entry by pressing -Q- button.
System in Basic Setting Input displa
y group number XXX
    
Indicated on display  
Note:  
Display Group 000 is used here as an example to illustrate the procedure. 
(000 is to select Display Group 000)  
Note:  
When the display group is selected the EVAP valve is closed and the air 
conditioner compressor is switched off.  -  Select required display group number from the Display Group 
Overview in "Read Measuring Value Block" section. 
-  Press buttons -0- three times.
System in Basic Settin
g 
Q
Input display group number 
000
    
Indicated on display  
-  Confirm entry by pressing -Q- button.
System in basic setting 0 
    
Indicated on display  
Pa
ge 109 of 166 Motronic s
ystem, On Board Dia
gnostic 
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1 
         
        
        
     
        
        Page 112 of 166
01-92
      
-  Allow engine to idle for a few minutes: Coolant 
temperature at least 80 C.      
Notes:  
     
When the PRINT button is pressed the current 
display will be printed out. 
     Press C button before selecting further display 
groups. 
     
-  If readouts in all display fields match 
specifications, press   button. 
Rapid data transfer 
HELP
Select function XX
    
Indicated on display  
-  Press buttons -0- and -6- to select function "End Output".
Rapid data transfer 
HELP
06 - End Output
    
Indicated on display  
-  Confirm with -Q- button. 
Rapid data transfer 
HELP
Select function XX
    
Indicated on display  
Pa
ge 112 of 166 Motronic s
ystem, On Board Dia
gnostic 
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1 
         
        
        
     
        
        Page 117 of 166

01-96
       If an incorrect coding is displayed:  
     
- 
Press button.Rapid data transfer  
HELP
Select function XX
    
When indicated on display  
-  Press buttons "07" for the function "Code Control Module" and press Q 
button to confirm input. 
Code Control Module 
Q
Input code number XXXXX 
(0-32000
)
    
When indicated on display  
-  Input control module coding according to coding table and press -Q- 
button to confirm input   Page 01
-94
 . 
Function unknown or  
.
cannot be carried out currentl
y
    
If this message appears:  
Check in parts catalog if the correct control module has been installed 
(part number). It also possible that an incorrect code number was entered. 
If necessary repeat coding.  
- 
Press button.
Rapid data transfer 
HELP
Select function XX
    
Indicated on display  
-  Press buttons -0- and -6- to select function "End Output" and confirm 
entry with -Q- button. 
Pa
ge 117 of 166 Motronic s
ystem, On Board Dia
gnostic 
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1