OBD port AUDI A4 1998 B5 / 1.G Instrument Cluster OBD From Model Year 2000 Workshop Manual

01-83

Malfunction message "dEF" on trip odometer
display
If the control module in the instrument cluster
detects a malfunction in its permanent memory,
the letters "dEF" will appear on the trip odometer
display.

- If "dEF" is indicated on display, replace
instrument cluster Page 90
-27
.

Notes for replacing instrument cluster

Do not disassemble instrument cluster.
If necessary, instrument cluster should be
replaced through the exchange loop.
Fill out a damage report form and return
together with faulty instrument cluster.
Faulty units must always be returned in original
packaging.
The odometer and the Service Reminder
Indicator (SRI) of the replacement instrument
cluster can be adapted using the VAG1551
Scan Tool (ST) Page 01
-133
.
Pa
ge 5 of 99 Instrument cluster with lon
g service life, On Board Dia
gnostic
(OBD
) (from m.
y. 2000
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE01.01.2

01-96

VAG 1551 scan tool
display Possible causes
Corrective action
01300
Control module for
navigation with CD
mechanism -J401-

no communication
Open circuit or short circuit
Incorrect control module, that is, control module does
not support CAN
A control module that supports CAN is not indicated with
a "1" in measuring value block Page 01
-132
If control
module for navigation with CD-mechanism -J401- is not
displayed with "1"
Adaptation for the instrument cluster was not performed
properly - Locate malfunction using
wiring diagram
- Repair open circuit
- Replace control module with
a control module that supports
CAN
- Select adaptation channel 62
and input the correct
adaptation value Page 01
-
190
.
01304
Radio

no communication
Open circuit or short circuit
Incorrect control module, that is, control module does
not support CAN
A control module that supports CAN is not indicated with
a "1" in measuring value block Page 01
-132
.
Adaptation for the instrument cluster was not performed
properly - Locate malfunction using
wiring diagram
- Repair open circuit
- Replace control module with
a control module that supports
CAN
- Select adaptation channel 62
and input the correct
adaptation value Page 01
-
190
.
Pa
ge 21 of 99 Instrument cluster with lon
g service life, On Board Dia
gnostic
(OBD
) (from m.
y. 2000
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE01.01.2

01-97

VAG 1551 scan
tool display Possible causes
Corrective action
01311
Data-BUS
information

faulty
in single wire
mode
Open circuit or short circuit to a control module in
information data-BUS
Incorrect control module in information data-BUS,
that is, control module does not support CAN.
A control module that supports CAN is not indicated
with a "1" in measuring value block Page 01
-132
.
During adaptation of the instrument cluster, a control
module that supports CAN was not concurrently
adapted
Data bus is operating on only one wire (this can
cause EMV problems) - Locate malfunction using wiring diagram
- Repair open circuit
- Replace control module with a control
module that supports CAN
- Select adaptation channel 62 and input
the correct adaptation value Page 01
-
190
.
- Check data exchange Page 01
-196
.
Pa
ge 22 of 99 Instrument cluster with lon
g service life, On Board Dia
gnostic
(OBD
) (from m.
y. 2000
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE01.01.2

01-98

VAG 1551 scan tool
display Possible causes
Corrective action
01312
Powertrain data-BUS

faulty
Open circuit or short circuit to a control module in
powertrain data-BUS
A control module in the powertrain data-BUS is incorrect,
that is, control module does not support CAN
A control module that supports CAN is not indicated with a
"1" in measuring value block Page 01
-129
.
During adaptation of the instrument cluster, a control
module that supports CAN was not concurrently adapted - Locate malfunction using wiring
diagram
- Repair open circuit
- Replace incorrect control module
with a control module that supports
CAN
- Select adaptation channel 60 and
input the correct adaptation value
Page 01
-183
.
01314
Engine Control
Module (ECM)

no communication
Open circuit or short circuit
Incorrect control module, that is, control module does not
support CAN
A control module that supports CAN is not indicated with a
"1" in measuring value block Page 01
-129
If Engine
Control Module (ECM) is not displayed with "1"
Adaptation for the instrument cluster was not performed
properly - Locate malfunction using wiring
diagram
- Repair open circuit
- Replace control module with a
control module that supports CAN
- Select adaptation channel 60 and
input the correct adaptation value
Page 01
-183
.
Pa
ge 23 of 99 Instrument cluster with lon
g service life, On Board Dia
gnostic
(OBD
) (from m.
y. 2000
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE01.01.2

01-99

VAG 1551 scan tool
display Possible causes
Corrective action
01315
Transmission Control
Module (TCM)

no communication
Open circuit or short circuit
Incorrect control module, that is, control module does not
support CAN
A control module that supports CAN is not indicated with
a "1" in measuring value block Page 01
-129
.
Adaptation for the instrument cluster was not performed
properly - Locate malfunction using wiring
diagram
- Repair open circuit
- Replace control module with a
control module that supports CAN
- Select adaptation channel 60
and input the correct adaptation
value Page 01
-183
.
01320
Climatronic control
module -J255-

no communication
Open circuit or short circuit
Incorrect control module, that is, control module does not
support CAN
A control module that supports CAN is not indicated with
a "1" in measuring value block Page 01
-130
If
climatronic control module -J522- is not displayed with "1"
Adaptation for the instrument cluster was not performed
properly - Locate malfunction using wiring
diagram
- Repair open circuit
- Replace control module with a
control module that supports CAN
- Select adaptation channel 60
and input the correct adaptation
value Page 01
-183
.
Pa
ge 24 of 99 Instrument cluster with lon
g service life, On Board Dia
gnostic
(OBD
) (from m.
y. 2000
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE01.01.2

01-100

VAG 1551 scan
tool display Possible causes
Corrective action
01336
Comfort system
data-BUS

faulty
in single wire
mode
Open circuit or short circuit to a control module in
comfort system data-BUS
A control module in the comfort system data-BUS
is incorrect, that is, the control module does not
support CAN
A control module that supports CAN is not
indicated with a "1" in measuring value block
Page 01
-131
.
During adaptation of the instrument cluster, a
control module that supports CAN was not
concurrently adapted
Data bus is operating on only one wire (this can
cause EMV problems) - Locate malfunction using wiring diagram
- Repair open circuit
- Replace control module with a control
module that supports CAN
- Select adaptation channel 61 and input the
correct adaptation value Page 01
-187
.
- Check data exchange Page 01
-196
.
01402
Data wire from
navigation

Unplausible
signal
Open circuit in clock, enable or data wire
Problem in interface between navigation and
instrument cluster
Disturbance due to electromagnetic radiation
inside and outside vehicle Repair Manual, Radio,
Telephone,Navigation, Repair Group 91
- Check cabling of data wires for damage
- Check for cause of electromagnetic
disturbance
- Repair open circuit
65535
Control module Instrument cluster faulty
- Replace instrument cluster Page 90
-27
.
Pa
ge 25 of 99 Instrument cluster with lon
g service life, On Board Dia
gnostic
(OBD
) (from m.
y. 2000
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE01.01.2

01-144

Coding table:

Code
Language version
00001 German
00002 English
00003 French
00004 Italian
00005 Spanish
00006 Portuguese
Pa
ge 81 of 99 Instrument cluster with lon
g service life, On Board Dia
gnostic
(OBD
) (from m.
y. 2000
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE01.01.2