1997 AUDI A4 buttons

01-86

Work step 8: Diagnostic of oxygen sensor
control system

Test requirement:

Engine continues to run at 2000 RPM.
Basic Settin
g
Q
Enter display group number XXX

When indicated on display
- Press buttons -0-, -3- and -7- to select "display group number 037" and
press -Q- button to confirm input.
System in basic setting 37
1
2
3
4

When indicated on display
- Check specified value in display field 4:
Pa
ge 25 of 35 Readiness code11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU06.01.8

01-88

Work step 9: Diagnostic of catalytic converter

Test requirement:

Engine continues to run at 2000 RPM.
Basic Settin
g
Q
Enter displa
y group number XXX

When indicated on display
- Press buttons -0-, -4- and -6- to select "display group number 046" and
press -Q- button to confirm input.
System in basic setting 46
1
2
3
4

When indicated on display
Note:
Catalytic converter diagnostic lasts approx. 60 seconds. - Check specified values in display fields 2 and 4:
Pa
ge 27 of 35 Readiness code11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU06.01.8

01-90

Work step 10: Diagnostic of Secondary Air
Injection (AIR) system

- Remove VAG1788/10 RPM adjuster and leave
engine running at idle.

Test requirement:

Engine running at idle:

Note:
During diagnostic of the Secondary Air Injection
(AIR) system, the Secondary Air Injection (AIR)
pump will run for several seconds.
Basic Settin
g
Q
Enter displa
y group number XXX

When indicated on display
- Press buttons -0-, -7- and -7- to select "display group number 077" and
press -Q- button to confirm input.
System in basic setting 77
1
2
3
4

When indicated on display
- Check specified value in display field 4:
Pa
ge 29 of 35 Readiness code11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU06.01.8

01-92

Work step 11: Diagnostic of tank ventilation
valve

Test requirement:

Engine running at idle:
Basic Settin
g
Q
Enter display group number XXX

When indicated on display
- Press buttons -0-, -7- and -0- to select "display group number 070" and
press -Q- button to confirm input.
System in basic setting 70
1
2
3
4

When indicated on display
Note:
If test is not initiated or if indication switches from "Test ON" to "Test
OFF", depress accelerator pedal briefly, test will be repeated. - Check specified value in display field 4:
Pa
ge 31 of 35 Readiness code11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU06.01.8

01-94

Work step 12: Diagnostic of tank seal

Test requirements:

Engine running at idle:
Fuel filler cap opened briefly (to reduce
pressure).
Basic Settin
g
Q
Enter display group number XXX

When indicated on display
- Press buttons -0-, -7- and -1- to select "display group number 071" and
press -Q- button to confirm input.
System in basic setting 71
1
2
3
4

When indicated on display
Note:
Test lasts approx. 90 seconds.When the diagnostic of tank seal is performed several times in a row,
the fuel filler cap must be opened briefly before each test to release
pressure.
- Check specified value in display field 4:
Pa
ge 33 of 35 Readiness code11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU06.01.8