2000 AUDI A4 Brakes ESP DTC Table Workshop Manual

01-387

Printed output from
VAG1551 Scan Tool
(ST) Possible cause
Corrective action
DTC
01314
Engine Control Module
(ECM)
Control difference
The Engine Control Module
(ECM) is not able to reduce
engine torque. - Replace the ABS/ESP control module -J104- after
conferring with the product department of your distributor
or with the responsible importer.
01316
Brake control module
Control difference It took longer than 5 seconds for
an ESP adjustment. - Replace the ABS/ESP control module -J104- after
conferring with the product department of your distributor
or with the responsible importer.
Pa
ge 33 of 96 Electronic Stabilization Pro
gram
(ESP
) DTC table
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.17

01-388

Printed output from
VAG1551 Scan Tool
(ST) Possible cause
Corrective action
DTC
01418
Pilot valve -1- traction
control -N225-
Open circuit, short circuit to B+ or Ground (GND)
in wiring between ABS hydraulic unit -N55- and
ABS control module -J104-.
Pilot valve -1- traction control -N225-
malfunctioning.
Repair Manual, Brake System, Repair
Group 45
- Carry out "electrical test", step 5 page 01
-
318
.
- If the electrical test does not reveal any
malfunctions, check all wiring and connectors
for loose contacts.
- If the suggested steps do not lead to a
localization of the malfunction, replace the
ABS control module (w/EDL) -J104-.
01419
Pilot valve -2- traction
control -N226-
Open circuit, short circuit to B+ or Ground (GND)
in wiring between ABS hydraulic unit -N55- and
ABS control module -J104-.
Pilot valve -2- traction control -N226-
malfunctioning. - Carry out "electrical test", step 5 page 01
-
318
.
- If the electrical test does not reveal any
malfunctions, check all wiring and connectors
for loose contacts.
- If the suggested steps do not lead to a
localization of the malfunction, replace the
ABS control module (w/EDL) -J104-.
Pa
ge 34 of 96 Electronic Stabilization Pro
gram
(ESP
) DTC table
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.17

Repair Manual, Brake System, Repair
Group 45

Pa
ge 35 of 96 Electronic Stabilization Pro
gram
(ESP
) DTC table
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.17

01-389

Printed output from
VAG1551 Scan Tool
(ST) Possible cause
Corrective action
DTC
01420
High pressure switch
valve -1- traction
control -N227-
Open circuit, short circuit to B+ or Ground
(GND) in wiring between ABS hydraulic unit -
N55- and ABS control module -J104-.
High pressure switch valve -1- traction control -
N227- malfunctioning.
Repair Manual, Brake System, Repair
Group 45
- Carry out "electrical test", step 6 page
01
-318
.
- If the electrical test does not reveal any
malfunctions, check all wiring and
connectors for loose contacts.
- If the suggested steps do not lead to a
localization of the malfunction, replace the
ABS control module (w/EDL) -J104-.
01421
High pressure switch
valve -2- traction
control -N228-
Open circuit, short circuit to B+ or Ground
(GND) in wiring between ABS hydraulic unit -
N55- and ABS control module -J104-.
High pressure switch valve -2- traction control -
N228- malfunctioning. - Carry out "electrical test", step 6 page
01
-318
.
- If the electrical test does not reveal any
malfunctions, check all wiring and
connectors for loose contacts.
- If the suggested steps do not lead to a
localization of the malfunction, replace the
ABS control module (w/EDL) -J104-.
Pa
ge 36 of 96 Electronic Stabilization Pro
gram
(ESP
) DTC table
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.17

Repair Manual, Brake System, Repair
Group 45

Pa
ge 37 of 96 Electronic Stabilization Pro
gram
(ESP
) DTC table
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.17

01-390
DTC table; DTCs from 01422 to 01425

Printed output from
VAG1551 Scan Tool
(ST) Possible cause
Corrective action
DTC
01422
Hydraulic pump for
traction control -V156-
Insufficient voltage supply to hydraulic pump
for traction control -V156-. - Carry out "electrical test", step 25 page
01
-323
.


Short circuit to Ground (GND) in wiring
between hydraulic pump for traction control -
V156- and ABS control module -J104-.
Open circuit in voltage supply to ABS control
module -J104-.
Electrical Wiring Diagrams, Troubleshooting
& Component Locations - Check wiring between hydraulic pump for
traction control -V156- and ABS control
module -J104- for short to Ground (GND).
- Check the voltage supply lines to ABS
control module -J104-.

See continuation on
next page
Fuse malfunctioning.
Electrical Wiring Diagrams, Troubleshooting
& Component Locations - Replace fuse 42.
Pa
ge 38 of 96 Electronic Stabilization Pro
gram
(ESP
) DTC table
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.17

01-391

Printed output from
VAG1551 Scan Tool
(ST) Possible cause
Corrective action
DTC
01422
Hydraulic pump for
traction control -V156-

Continuation:
Short circuit to Ground (GND) in
hydraulic pump for traction
control -V156-.
Repair Manual, Brake System, Repair Group 45
- If you do not find a problem in wiring between hydraulic
pump for traction control -V156- and ABS control module -
J104-, replace hydraulic pump for traction control -V156-.


See continuation on
next page Note: Only replace the control
module as a last resort.
ABS control module -J104-
malfunctioning
Repair Manual, Brake System, Repair Group 45
- If the malfunction cannot be fixed, replace the ABS
control module -J104-. Pa
ge 39 of 96 Electronic Stabilization Pro
gram
(ESP
) DTC table
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.17

01-392

Printed output from
VAG1551 Scan Tool
(ST) Possible cause
Corrective action
DTC
01422
Continuation:
Hydraulic pump for
traction control -V156-
Short circuit to B+
Open circuit in wiring between hydraulic
pump for traction control -V156- and ABS
control module -J104-. - Check wiring between hydraulic pump for
traction control -V156- and ABS control module
-J104- for open circuit.



See continuation on
next page Short circuit to B+ in wiring between
hydraulic pump for traction control -V156-
and ABS control module -J104-.
Electrical Wiring Diagrams, Troubleshooting
& Component Locations - Check wiring between hydraulic pump for
traction control -V156- and ABS control module
-J104- for short to B+.
Pa
ge 40 of 96 Electronic Stabilization Pro
gram
(ESP
) DTC table
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.17