check engine AUDI A4 1997 B5 / 1.G APB Engine Motronic Syst

01-132


Display fields

1 2 3 4
Display group 046: Diagnostic of catalytic converter (Bank 1)
Display xxxx/RPM
xxx C
x.x s
---
Indicated Engine speed
(RPM) Catalyst
temperature Catalytic
converter
conversion Diagnostic condition
Work
range 0 - 6800/RPM
70 - 850 C
0.0 - 0.99
Test OFF
Test ON
Cat B1 OK
Cat B1 not OK
Specified
value 1900 -
2200/RPM greater than
350 C 0.0 - 0.80
Cat B1 OK
Note



If "Cat B1 not OK" is displayed: Check DTC
memory Page 01
-15
. If no malfunction is stored
replace catalytic converter.
If the specified value "Cat B1 OK" is reached:

- Press -C- button

Engine running at 1900 - 2200 RPM
Pa
ge 161 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

01-133


Display fields

1 2 3 4
Display group 047: Diagnostic of catalytic converter (Bank 2)
Display xxxx/RPM
xxx C
x.x seconds
---
Indicated Engine speed
(RPM) Catalyst
temperature Catalytic
converter
conversion Diagnostic condition
Work range 0 - 6800/RPM
70 - 850 C 0.0 - 0.99
Test OFF
Test ON
Cat B2 OK
Cat B2 not OK
Specified
value 1900 -
2200/RPM greater than
350 C 0.0 - 0.80
Cat B2 OK
Note



If "Cat B2 not OK" is displayed: Check DTC memory
Page 01
-15
. If no malfunction is stored replace
catalytic converter.
If the specified value "Cat B2 OK" is reached:

- Press -C- button
Pa
ge 163 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

01-136


Display fields

1 2 3 4
Display group 078: Diagnostic of secondary air injection system (Bank 2)
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 button.
Work step 14: Readiness code, displaying

- Display readiness code again (measure of
control) Page 01
-101
.
Pa
ge 166 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