1999 AUDI A4 ABS

01-98
Diagnostic Trouble Code (DTC) table Output on printer of VAG1551
Scan Tool (ST) Possible cause
Corrective action
DTC

00000
No malfunction recognized!
If this display appears, process
is concluded. No DTCs are
stored in DTC memory.
If corresponding warning lamps
light up anyway, check the
following points:
Voltage supply for ABS control module -J104-
below 10.5 volts at a vehicle speed less than 6
km/h. Open circuit in activation wire for ABS warning
light -K47- between ABS control module (w/EDL) -
J104- and instrument cluster combination
processor -J218-. - See section "Overview of
indicator lamp functions"
If no malfunction can be found, and there is still a
problem, there may be a mechanical malfunction (e.g.
solenoid valve sticking). - Expand troubleshooting to
include "Electrical test", function
test page 01
-68
.
Pa
ge 53 of 79 Read Measurin
g Value Block
(function 08
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.8

01-99

Output on printer of
VAG1551 Scan Tool
(ST) Possible cause
Corrective action
DTC
00257
Left front ABS inlet
valve -N101-
Open circuit, short circuit to B+ or Ground (GND)
in wiring between ABS hydraulic unit -N55- and
ABS control module -J104-.
Left front ABS inlet valve -N101- malfunctioning - Carry out "electrical test", steps 1 + 13
page 01
-68
.
- If the electrical test does not reveal any
malfunctions, check all wiring and
connectors for loose contacts.
- If no problems are found after
implementing the specified steps, replace
the control module.
00259
Right front ABS inlet
valve -N99-
Open circuit, short circuit to B+ or Ground (GND)
in wiring between ABS hydraulic unit and ABS
control module -J104-.
Right front ABS inlet valve -N99- malfunctioning. - Carry out "electrical test", steps 2 +14
page 01
-68
.
- If the electrical test does not reveal any
malfunctions, check all wiring and
connectors for loose contacts.
- If no problems are found after
implementing the specified steps, replace
the control module.
Pa
ge 54 of 79 Read Measurin
g Value Block
(function 08
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.8

01-100

Output on printer of
VAG1551 Scan Tool
(ST) Possible cause
Corrective action
DTC
00265
Left front ABS outlet
valve -N102-
Open circuit, short circuit to B+ or Ground (GND)
in wiring between ABS hydraulic unit and ABS
control module -J104-.
Left front ABS outlet valve -N102- malfunctioning. - Carry out "Electrical test", step 1 page
01
-68
.
- If the electrical test does not reveal any
malfunctions, check all wiring and
connectors for loose contacts.
- If no problems are found after
implementing the specified steps, replace
the control module.
00267
Right front ABS outlet
valve -N100-
Open circuit, short circuit to B+ or Ground (GND)
in wiring between ABS hydraulic unit and ABS
control module -J104-.
Right front ABS outlet valve -N100-
malfunctioning - Carry out "Electrical test", step 2 page
01
-68
.
- If the electrical test does not reveal any
malfunctions, check all wiring and
connectors for loose contacts.
- If no problems are found after
implementing the specified steps, replace
the control module.
Pa
ge 55 of 79 Read Measurin
g Value Block
(function 08
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.8

01-101

Output on printer of
VAG1551 Scan Tool
(ST) Possible cause
Corrective action
DTC
00273
Right rear ABS inlet
valve -N133-
Open circuit, short circuit to B+ or Ground (GND)
in wiring between ABS hydraulic unit and ABS
control module -J104-.
Right rear ABS inlet valve -N133- malfunctioning - Carry out "electrical test", steps 4 +16
page 01
-68
.
- If the electrical test does not reveal any
malfunctions, check all wiring and
connectors for loose contacts.
- If no problems are found after
implementing the specified steps, replace
the control module.
00274
Left rear ABS inlet
valve -N134-
Open circuit, short circuit to B+ or Ground (GND)
in wiring between ABS hydraulic unit and ABS
control module -J104-.
Left rear ABS inlet valve -N134- malfunctioning - Carry out "electrical test", steps 3 +15
page 01
-68
.
- If the electrical test does not reveal any
malfunctions, check all wiring and
connectors for loose contacts.
- If no problems are found after
implementing the specified steps, replace
the control module.
Pa
ge 56 of 79 Read Measurin
g Value Block
(function 08
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.8

01-102

Output on printer of
VAG1551 Scan Tool
(ST) Possible cause
Corrective action
DTC
00275
Right rear ABS outlet
valve -N135-
Open circuit, short circuit to B+ or Ground (GND)
in wiring between ABS hydraulic unit and ABS
control module -J104-.
Right rear ABS outlet valve -N135-
malfunctioning. - Carry out "Electrical test", step 4 page
01
-68
.
- If the electrical test does not reveal any
malfunctions, check all wiring and
connectors for loose contacts.
- If no problems are found after
implementing the specified steps, replace
the control module.
00276
Left rear ABS outlet
valve -N136-
Open circuit, short circuit to B+ or Ground (GND)
in wiring between ABS hydraulic unit and ABS
control module -J104-.
Left rear ABS outlet valve -N136- malfunctioning - Carry out "Electrical test", step 3 page
01
-68
.
- If the electrical test does not reveal any
malfunctions, check all wiring and
connectors for loose contacts.
- If no problems are found after
implementing the specified steps, replace
the control module.
Pa
ge 57 of 79 Read Measurin
g Value Block
(function 08
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.8

01-103

Output on printer of
VAG1551 Scan Tool
(ST) Possible cause
Corrective action
DTC
00283
Left front ABS wheel
speed sensor -G47-
or:
ABS wheel speed sensor rotor dirty or
damaged.
Excessive wheel bearing play.
Left rear ABS wheel speed sensor -G47-
installed incorrectly.
ABS wheel speed sensor -G47-
malfunctioning.
Short circuit to Ground (GND). Repair Manual, Brake System, Repair Group 45

Repair Manual, Suspension, Wheels, Steering,
Repair Group 40

Repair Manual, Brake System, Repair Group 45
- Check rotor, clean or replace
- Replace wheel bearing- Check installation of ABS wheel speed sensor.- "Read measuring value block" display group 1
page 01
-63
.
- Carry out "Electrical test", step 7 page 01
-68
.
- If neither the "Read measuring value block"
function nor the "electrical test" reveal any
malfunctions, check all wiring and harness
connectors for loose contacts.
Left front ABS wheel
speed sensor -G47-
Incorrect control module version.- Check control module version page 01
-52
.
Pa
ge 58 of 79 Read Measurin
g Value Block
(function 08
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.8

Open circuit/short
circuit to B+
Open circuit or short circuit to B+ in wiring
between ABS wheel speed sensor -G47-
and ABS control module -J104-. - If no problems are found after implementing the
specified steps, replace the control module.
Pa
ge 59 of 79 Read Measurin
g Value Block
(function 08
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.8

01-104

Output on printer of
VAG1551 Scan Tool
(ST) Possible cause
Corrective action
DTC
00285
Right front ABS
wheel speed sensor -
G45-
or:
ABS wheel speed sensor rotor dirty or
damaged.
Excessive wheel bearing play.
Left rear ABS wheel speed sensor -G45-
installed incorrectly.
ABS wheel speed sensor -G45-
malfunctioning.
Short circuit to Ground (GND). Repair Manual, Brake System, Repair Group 45

Repair Manual, Suspension, Wheels, Steering,
Repair Group 40

Repair Manual, Brake System, Repair Group 45
- Check rotor, clean or replace
- Replace wheel bearing- Check installation of ABS wheel speed sensor.- "Read measuring value block", display group 1
page 01
-63
.
- Carry out "Electrical test", step 8 page 01
-68
.
- If neither the "Read measuring value block"
function nor the "electrical test" reveal any
malfunctions, check all wiring and harness
connectors for loose contacts.
Right front ABS
wheel speed sensor -
Incorrect control module version.- Check control module version page 01
-52
.
Pa
ge 60 of 79 Read Measurin
g Value Block
(function 08
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.8