sensor AUDI A4 1998 B5 / 1.G APB Engine Motronic Syst
Page 156 of 166
01-128
Work step 11: Diagnosis of oxygen sensor
aging behind catalytic converter
Test requirements
Engine running at 1900 - 2200 RPM
System in Basic Settin
g
Q
Input display group number XXX
Indicated on display
- Press buttons -0-, -4- and -3- to select "display group number 043" and
confirm input with -Q- button.
System in Basic Setting 43
1
2
3
4
Indicated on display
- Check specified value in display field 4.
Pa
ge 156 of 166 Motronic s
ystem, On Board Dia
gnostic
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1
Page 157 of 166
01-129
Display fields
1 2 3 4
Display group 043: Oxygen sensor aging oxygen sensor behind TWC (Bank 1)
Display xxxx/RPM
xxx C
x.xxx V
Test ON
Indicated Engine speed
(RPM) Catalyst
temperature Voltage of oxygen
sensor behind TWC
Bank 1 Diagnostic condition
Work range 0 - 6800/RPM
70 - 850 C
0.000 - 1.000 Volt
Test OFF
Test ON
B1-S2 OK
B1-S2 not OK
Specified
value 1900 -
2200/RPM greater than 320
C 0.000 - 1.000 Volt
B1-S2 OK
Note
If "B1-S2 not OK" is displayed: Check DTC
memory Page 01
-15
.
If specified value of "B1-S2 OK" is reached:
- Press -C- button.
Test requirements
Engine running at 1900 - 2200 RPM
Pa
ge 157 of 166 Motronic s
ystem, On Board Dia
gnostic
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1
Page 159 of 166
01-130
Display fields
1 2 3 4
Display group 044: Oxygen sensor aging oxygen sensor behind TWC (Bank 2)
Display xxxx/RPM
xxx C
x.xxx Volt
Test ON
Indicated Engine speed
(RPM) Catalyst
temperature Voltage of oxygen
sensor behind TWC
Bank 2 Diagnostic condition
Work range 0 - 6800/RPM
70 - 850 C
0.000 - 1.000 Volt Test OFF
Test ON
B2-S2 OK
B2-S2 not OK
Specified
value 1900 -
2200/RPM greater than 320
C 0.000 - 1.000 Volt B2-S2 OK
Note
If "B2-S2 not OK" is displayed: Check DTC
memory Page 01
-15
.
If specified value of "B2-S2 OK" is reached:
- Press -C- button.
Pa
ge 159 of 166 Motronic s
ystem, On Board Dia
gnostic
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1