AUDI A4 1997 B5 / 1.G Radio OBD User Guide

01-10

DTC
Possible cause
Corrective action
VAG1551 Scan Tool display
00668
Battery Positive Voltage (B+)
Term. 30

Signal too low
Battery discharged or faultyShort circuit in vehicle electrical
system - Charge or replace battery.
- Repair short circuit in vehicle electrical system.
00849
S Contact on Ignition Starter
Switch

Open circuit
Ignition/starter switch -D- faultyOpen circuit in wiring
Electrical Wiring Diagrams, Troubleshooting &
Component Locations - Replace ignition/starter switch -D-.
- Trace malfunction using wiring diagram.
00850
Control Output Active, Radio
Amplifier

Short circuit to Ground
Wiring damagedActive amplifier faulty
Electrical Wiring Diagrams, Troubleshooting &
Component Locations - Trace malfunction using wiring diagram.
- Replace active amplifier.
Pa
ge 11 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

01-11

DTC
Possible cause
Corrective action
VAG1551 Scan Tool
display
00852
Loudspeaker front

Short circuit
Open circuit
Wiring damaged
Front loudspeaker
faulty
Open circuit in wiring Electrical Wiring Diagrams, Troubleshooting & Component
Locations - Trace malfunction using wiring diagram.
- Replace faulty loudspeaker.
- Repair open circuit.
00853
Loudspeaker rear

Short circuit
Open circuit
Wiring damaged
Rear loudspeaker
faulty
Open circuit in wiring Electrical Wiring Diagrams, Troubleshooting & Component
Locations - Trace malfunction using wiring diagram.
- Replace faulty loudspeaker.
- Repair open circuit.
Pa
ge 12 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

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

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

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

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

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

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

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

01-19

Code Control Module (scan tool function
07)

This function is used to code the radio for the
following:
Radio configuration
Sound system
Number of passive loudspeakers
Country identification

Notes:
The coding procedure is used to set the various
radio configuration options.
The coding table only gives the combinations
that are available for the Audi A4.
The term "antenna with remote power supply"
refers to active antennas (e.g. rear window
antennas) which are powered via the HF cable.
The coding must always correspond to the
equipment installed in the vehicle.
Pa
ge 20 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