ignition AUDI A4 2000 B5 / 1.G 01V Transmission OBD Functions Workshop Manual

01-6

MIL functional check

- Switch ignition on: MIL must come on.

If the MIL does not come on when the ignition is
switched on (with the engine not running):
Check DTC memory page 01
-43
. If
necessary, check wiring per wiring diagram or
replace light bulb.

- Start engine and let idle: MIL must switch off
after several seconds.

If the MIL does not switch off after the engine is
started: Check DTC memory page 01
-43
.
Pa
ge 9 of 13 On Board Dia
gnostic
(OBD
), function
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.1

01-7

Conditions for recognition of a driving
cycle (Dcy)

A driving cycle (Dcy) is complete when the
ignition is switched on one time, the engine
starts, the engine start is recognized by the
control module, and the ignition is switched off.
Pa
ge 10 of 13 On Board Dia
gnostic
(OBD
), function
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.1