display AUDI A4 1995 B5 / 1.G Radio OBD User Guide
Page 13 of 34
01-12
 
DTC  
Possible cause  
Corrective action  
VAG1551 Scan Tool 
display       
00854        
Output Radio Display 
Dash Panel Insert  
 
No signal 
Open circuit in wiring
 Instrument cluster 
combination processor faulty  Electrical Wiring Diagrams, Troubleshooting & 
Component Locations   
 Repair Manual, Electrical Equipment, Repair Group 90; 
removing and installing instrument cluster
    - Trace malfunction using wiring diagram.
- Replace faulty instrument cluster.
00855        
Connection to CD 
Changer  
 
No signal 
Open circuit in wiring
 Voltage supply to CD changer 
unit interrupted 
 CD changer unit -R41- faulty Electrical Wiring Diagrams, Troubleshooting & 
Component Locations    - Trace malfunction using wiring diagram.
- Check voltage supply to CD changer unit using wiring 
diagram. 
- Replace CD changer unit.
Pa
ge 13 of 34 Radio, On Board Dia
gnostic 
(OBD
) (m.
y. 1998 [micro]
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.01.1 
Page 14 of 34
01-13
 
DTC  
Possible cause  
Corrective action  
VAG1551 Scan Tool 
display       
00856        
Radio Antenna  
 
Short circuit
 Open circuit 
Open circuit in wiring
 Short circuit in antenna wire
 Electrical Wiring Diagrams, Troubleshooting & 
Component Locations    - Trace malfunction using wiring diagram.
- Check antenna wire.
01044        
Control Module incorrectly 
coded   
Radio not coded to match 
configuration in vehicle - Code radio according to vehicle.
65535        
Control Module 
Malfunctioning   Radio faulty- Replace radio.
Pa
ge 14 of 34 Radio, On Board Dia
gnostic 
(OBD
) (m.
y. 1998 [micro]
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.01.1 
Page 15 of 34
01-14
      
Output Diagnostic Test Mode (scan tool 
function 03)
 
     
Notes:  
     
The output Diagnostic Test Mode (DTM) may 
only be carried out with the vehicle stationary 
and the engine not running. 
     Any malfunctions identified by the output 
Diagnostic Test Mode (DTM) must be traced 
and eliminated. 
      The output DTM is used to test the loudspeaker 
wiring and the secondary display.  
     
Carrying out output DTM  
     
-  Press buttons -0- and -3- to select "Output 
Diagnostic Test Mode" function 03. 
Rapid data transfer  
Q
03 - Output Dia
gnostic Test Mode
    
Indicated on display  
-  Press -Q- button to confirm input.
Output Diagnostic Test Mode Speaker
    
Indicated on display  
All loudspeakers will receive a brief electrical pulse (inaudible).  
Pa
ge 15 of 34 Radio, On Board Dia
gnostic 
(OBD
) (m.
y. 1998 [micro]
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.01.1 
Page 16 of 34
01-15
      
Note:  
     Any malfunctions (e.g. short circuits) that occur 
will be recorded as DTCs in DTC memory. 
     
- 
Press  button.Output Diagnostic Test Mode Outlet Radio displa
y instrument panel insert
    
Indicated on display  
"DISPLAY ... TEST" will appear on the secondary display in the 
instrument cluster.  
- 
Press  button.
Output Diagnostic Test Mode End
    
Indicated on display  
- 
Press   button (returns scan tool to "Select function XX" prompt).
Rapid data transfer 
HELP
Select function XX
    
Indicated on display  
Pa
ge 16 of 34 Radio, On Board Dia
gnostic 
(OBD
) (m.
y. 1998 [micro]
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.01.1 
Page 17 of 34
01-16
      
Erase DTC Memory (scan tool function 
05)
 
     
Note:  
     DTC memory can be erased only after it has 
been checked (   page 01
-7 ). If DTC memory 
cannot be erased, again check DTC memory and 
repair any malfunctions. 
     
Requirements  
     
DTC memory checked   page 01
-7 
     
All malfunctions repaired 
      When DTC memory has been checked:  
Rapid data transfer  
HELP
Select function XX
    
Indicated on display  
-  Press buttons -0- and -5- to select "Erase DTC Memory" function 05.
Pa
ge 17 of 34 Radio, On Board Dia
gnostic 
(OBD
) (m.
y. 1998 [micro]
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.01.1 
Page 18 of 34
01-17
 
Rapid data transfer  
Q
05 - Erase DTC Memory
    
Indicated on display  
-  Press -Q- button to confirm input.
Rapid data transfer DTC Memor
y is erased!
    
Indicated on display  
DTC memory is now erased.  
- 
Press  button.
Rapid data transfer 
HELP
Select function XX
    
Indicated on display  
Notes:  
Attention! DTC Memor
y is not interro
gated
    
This message indicates an error in the test sequence.
Rapid data transfer DTC Memor
y is not interro
gated
    
This message indicates an error in the test sequence.Adhere exactly to the test sequence: first check DTC memory, repair 
malfunctions as necessary, then erase DTC memory. 
Pa
ge 18 of 34 Radio, On Board Dia
gnostic 
(OBD
) (m.
y. 1998 [micro]
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.01.1 
Page 19 of 34
01-18
      
End Output (scan tool function 06)
 
     
-  Press buttons -0- and -6- to select "End Output" 
function 06. 
Rapid data transfer 
Q
06 - End Output
    
Indicated on display  
-  Press -Q- button to confirm input.
Rapid data transfer 
HELP
Insert address word XX
    
Indicated on display  
-  Switch ignition off.
-  Disconnect VAG1551 Scan Tool (ST) from Data Link Connector (DLC).
Pa
ge 19 of 34 Radio, On Board Dia
gnostic 
(OBD
) (m.
y. 1998 [micro]
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.01.1 
Page 21 of 34
01-20
      
Coding procedure  Rapid data transfer 
HELP
Select function XX
    
Indicated on display  
-  Press buttons -0- and -7- to select "Code Control Module" function 07.
Rapid data transfer 
Q
07 - Code Control Module
    
Indicated on display  
-  Press -Q- button to confirm input.
Code Control Module 
Q
Input code number XXXXX 
06812
    
Indicated on display  
Coding: 00017 (example)   -  Input code number per coding table   page 01
-22
 .
Country identification: 0 = standardSound coordination: 0 = standardNumber of passive loudspeakers: 0 = no passive loudspeakers (BOSE 
sound system) Sound system: 1 = BOSE sound systemRadio configuration: 7 = radio system with CD changer unit and 
secondary display 
-  Press -Q- button to confirm input.
Pa
ge 21 of 34 Radio, On Board Dia
gnostic 
(OBD
) (m.
y. 1998 [micro]
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.01.1 
Page 22 of 34
01-21
 
4B0035186A 
Radio 
D01 
Codin
g 00017 
WSC 06812
    
Indicated on display (the control module identification and the coding that 
was input)  
- 
Press   button to end coding.
Rapid data transfer 
HELP
Select function XX
    
Indicated on display  
-  Press buttons -0- and -6- to select "End Output" function 06.
Rapid data transfer 
Q
06 - End Output
    
Indicated on display  
-  Press -Q- button to confirm input.
Pa
ge 22 of 34 Radio, On Board Dia
gnostic 
(OBD
) (m.
y. 1998 [micro]
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.01.1 
Page 23 of 34
01-22
 Radio coding table  5  
4  
3  
2  
1  
 Decimal places of byte coding on scan tool display                            
           
7  
Radio configuration  
                  Antenna with remote power supply   CD changer unit   Secondary display  
              
1   X   -   -  
              
3   X   X   -  
              
5   X   -   X  
              
7   X   X   X  
              
X = component installed   - = not installed  
Pa
ge 23 of 34 Radio, On Board Dia
gnostic 
(OBD
) (m.
y. 1998 [micro]
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.01.1