1998 AUDI A4 diagram

01-36

DTC


VAG 1551 scan tool display
Possible cause
Corrective action
01221
Crash Sens. Side Airbag Driv. Side-
G179 (sensor for lateral
acceleration)
Short circuit
Short circuit in wiring to B+ or Ground Crash sensor for side airbag, driver's
side -G179 faulty Airbag control module -J234- faulty Electrical Wiring Diagrams,
Troubleshooting & Component
Locations binder - Repair wiring according to wiring
diagram.
- Replace crash sensor -G179-.
- Replace airbag control module -J234-.
01221
Crash Sens. Side Airbag Driv. Side-
G179 (sensor for lateral
acceleration)
Not authorized
Airbag control module -J234-
incorrectly coded Control module and crash sensor do
not match - Replace control module -J234-.
- Replace crash sensor -G179-.
01222
Crash Sens. Side Airbag Pass. Side-
G180 (sensor for lateral
acceleration)
Open circuit Open circuit in wiringHarness connector for crash sensor for
side airbag, passenger side
disconnected Crash sensor for side airbag,
passenger side -G180- faulty Electrical Wiring Diagrams,
Troubleshooting & Component
Locations binder - Repair wiring according to wiring
diagram.
Pa
ge 47 of 74 Airba
g system
(with and without side airba
g)
On Board Dia
gnostic
(OBD
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.BD04.01.2

01-37

DTC


VAG 1551 scan tool display
Possible cause
Corrective action
01222
Crash Sens. Side Airbag Pass. Side-
G180 (sensor for lateral acceleration)
Short circuit
Short circuit in wiring to B+ or
Ground Crash sensor for side airbag,
passenger side -G180- faulty Airbag control module -J234-
faulty Electrical Wiring Diagrams,
Troubleshooting & Component Locations
binder - Repair wiring according to wiring diagram.
- Replace crash sensor -G180-.
- Replace airbag control module -J234-.
01222
Crash Sens. Side Airbag Pass. Side-
G180 (sensor for lateral acceleration)
Not authorized
Airbag control module -J234-
incorrectly coded Control module and crash
sensor do not match - Replace control module -J234-.
- Replace crash sensor -G180-.
01223
Signal Open Central Locking Airbag control module -J234-
faulty - Replace airbag control module -J234-.
01280 1)
Airbag Passenger Side Switched Off Passenger-side airbag was
switched off during adaptation - Adapt airbag control module -J234- as
appropriate.
Pa
ge 49 of 74 Airba
g system
(with and without side airba
g)
On Board Dia
gnostic
(OBD
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.BD04.01.2

01-38

DTC


VAG 1551 scan tool display
Possible cause
Corrective action
01578
Wng.Light for Airbag Off,Pass. Side-
K145
Short circuit to B+
Wiring damagedAirbag control module -J234-
faulty Electrical Wiring Diagrams,
Troubleshooting & Component Locations
binder - Repair wiring according to wiring diagram
- Replace airbag control module -J234-
01578
Wng.Light for Airbag Off,Pass. Side-
K145
Open/Short circuit to ground
Wiring damagedWarning light for airbag off,
passenger side -K145- faulty Airbag control module -J234-
faulty Electrical Wiring Diagrams,
Troubleshooting & Component Locations
binder - Repair wiring according to wiring diagram
- Replace warning light -K145-
- Replace airbag control module -J234-
01588
Ign. for Side Curtain Airbag, Driver Side-
N251Resistance value too large
Open circuit in wiringDriver-side side curtain airbag
faulty Airbag control module faulty - Repair open circuit.
- Replace driver-side side curtain airbag.
- Replace airbag control module -J234-.
Pa
ge 50 of 74 Airba
g system
(with and without side airba
g)
On Board Dia
gnostic
(OBD
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.BD04.01.2

01-50

If engine does not stop running, check if fuel
shut-off was accomplished in Engine Control
Module (ECM).

Electrical Wiring Diagrams, Troubleshooting &
Component Locations binder

If engine does not stop running, but fuel shut-off
was accomplished in the Engine Control
Module (ECM), check wire to Engine Control
Module (ECM).

Electrical Wiring Diagrams, Troubleshooting &
Component Locations binder
Output Diagnostic Test Mode END

Indicated on display
-
Press button.
Rapid data transfer
HELP
Select function XX

Indicated on display
Pa
ge 67 of 74 Airba
g system
(with and without side airba
g)
On Board Dia
gnostic
(OBD
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.BD04.01.2