ignition AUDI A4 1997 B5 / 1.G AEB ATW Engines Lubrication System Components Workshop Manual
Page 27 of 33
17-22
Oil pressure and oil pressure switch,
checking
Function of dynamic oil pressure warning
system
Warning lamp, checking
With engine switched off and ignition on (terminal
15 on), oil pressure warning lamp will be lit (not
for vehicles with Auto Check system).
Warning criteria
Engine switched off and oil pressure switch
closed.
Coolant temperature less than 60 C (140
F), engine speed higher than 300 RPM and
oil pressure switch open.
Coolant temperature greater than 60 C
(140 F).
At engine speeds greater than 5000 RPM,
an active oil warning won't be erased
independent of oil pressure switch setting.
A Diagnostic Trouble Code (DTC) is
recognized when oil pressure switch is open
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ystem com
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11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
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Page 29 of 33
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Special tools and equipment
VAG1342 oil pressure tester
VAG1527B voltage tester
VAG1594A measuring appliance adapter
Test conditions
Oil level OK
Oil pressure warning light -K3- must light up
when ignition is switched on.
For vehicles with Auto Check system, "i.O"
indicator must be lit (call up symbol)
Engine oil temperature approximately 80 C
(176 F)
Pa
ge 29 of 33 Lubrication s
ystem com
ponents, removin
g and installin
g
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE02.17.1