air condition AUDI A4 1999 B5 / 1.G AFC Engine On Board Diagnostic Multiport Fuel Injection Service Manual

01-242

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Meaning of 8-digit display "Diagnosis Condition 2"

1 = Three way catalytic converter diagnosis, bank 2 active

2 = Engine load: 27 - 66% ( display group 003 )
3 = Engine speed: 1800 - 2700 RPM ( display group 003)
4 = Vehicle speed: 80 - 100 km/h (50 - 63 mph) ( display group 003)
5 = Three way catalytic converter diagnosis, bank 1 active

6 = Value does not drop below or exceed oxygen sensor control limit ( display group 007
and/or 008)
7 = Intake air mass through Mass Air Flow (MAF) sensor: 12 - 36 g/sec ( display group 019)

8 = Calculated exhaust gas temperature in three way catalytic converter: 400 - 640 C (752 -
1184 F)
Pa
ge 338 of 366 On Board Dia
gnostic
(OBD
) - Multi
port Fuel In
jection
(MFI
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU01.01.1

01-262

Step 3: Road test
In order to set the readiness code, a "mixed city
and highway" drive is required. The necessary
driving conditions for the test drive ar listed in the
following chart:

Speed Between 50 and 62 mph
RPM 1800 - 2700 RPM
Manual: 5th gear
Automatic: Drive mode "4"
Drive
Profile After attaining the specified speed (50-
62 mph) implement a short
deceleration phase (approx. 5-8
seconds), then drive if possible at
constant specified speed and RPM
range
Drive
Time Approx. 1-1/2 to 5 minutes (as long as
necessary)
Pa
ge 361 of 366 On Board Dia
gnostic
(OBD
) - Multi
port Fuel In
jection
(MFI
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU01.01.1