buttons AUDI A4 2000 B5 / 1.G APB Engine Motronic Syst

01-126


Display fields

1 2 3 4
Display group 037: Oxygen sensor control system (Bank 1)
Display xx.x % x.xxx Volt xxx ms
Test ON
Indicated Load Voltage of oxygen
sensor behind
TWC, bank 1 Correction value
between oxygen sensors 1
and 2, bank 1 Diagnostic condition
Work range 0 - 175 % 0.000 - 1.000 Volt ---
Test OFF
Test ON
Syst. OK
Syst. not OK
Specified
value 13.5 -
25.0 % 0.000 - 1.000 Volt -500ms to 800ms
Syst. OK
Note

If "Syst. not OK" is displayed: Check DTC
memory Page 01
-15
.
If specified value of "System OK" is reached:

- Press -C- button.

- Press buttons -0-, -3- and -8- to select "display
group number 038" and confirm input with -Q-
button.
Pa
ge 154 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

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

- Press buttons -0-, -4- and -4- to select "display
group number 044" and confirm input with -Q-
button.
Pa
ge 158 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

01-131

Work step 12: Diagnosis of 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 -6- to select "display group number 046" and
confirm input with -Q- button.
System in Basic Setting 46
1
2
3
4

Indicated on display
Note:
The test duration for catalytic converter diagnosis takes approx.: 60
seconds. - Check specified value in display field 4.
Pa
ge 160 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

- Press buttons -0-, -4- and -7- to select "display
group number 047" and confirm input with -Q-
button.
Pa
ge 162 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

01-134

Work step 13: Diagnosis of Secondary Air
Injection (AIR) system (only on vehicles with
automatic transmission), on vehicles with
manual transmission continue with work step
14 Page 01
-136


Note:
The secondary air pump runs for a few seconds
during the secondary air injection system
diagnosis.

Engine at idle sped
System in Basic Setting
Q
Input displa
y group number XXX

Indicated on display
- Press buttons -0-, -7- and -7- to select "display group number 077" and
confirm input with -Q- button.
System in Basic Setting 77
1
2
3
4

Indicated on display
Note:
The test duration for the secondary air injection system takes
approximately 60 seconds. - Check specified value in display field 4.
Pa
ge 164 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

01-135


Display fields

1 2 3 4
Display group 077: Diagnostic of secondary air injection system (Bank 1)
Display xxxx/RPM xx.x g/s xx %
Test ON
Indicated Engine speed
(RPM) Air
mass Relative air mass secondary air
injection system Diagnostic condition
Work
range 0 - 6800/RPM
Test OFF
Test ON
Syst. OK
Syst. not OK
Abort
Value 750 - 850/RPM +10 % to -100 %
Syst. OK
Note



If "Syst. not OK": Check DTC memory
Page 01
-15
.
If the specified value of "Syst. OK" is reached:

- Press -C- button.

- Press buttons -0-, -7- and -8- to select "display
group number 078" and confirm input with -Q-
button.
Pa
ge 165 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