Skoda OCTAVIA MK1 Service Manual page 91

t Voltage tester (e.g. - V.A.G 1527-)
t Measuring tool set (e.g. -V.A.G 1594-)
t Current flow diagram
Function of dynamic oil pressure warning system if oil pressure low
The oil pressure switch is opened when pressureless and closed when the switching pressure
is reached.
The oil pressure warning is activated for about 10 seconds after the ignition is switched on
("terminal 15 on").
Activation delay of oil pressure warning system: approx. 3 s.
De-activation delay of the oil pressure warning system: approx. 5 s.
Test warning light
After the ignition is switched on and engine not running, the oil pressure warning light in the
dash panel insert must light up for about 3 s and then go out. The check is ended when the
engine is started.
Warning criteria
The visual oil pressure warning (oil pressure warning lamp flashes) is activated and the
audible warning buzzer sounds 3 times if one of the following conditions exists:
l "Ignition on", engine not running, oil pressure switch closed
l Engine speed above 1500 rpm, oil pressure switch open
At an engine speed above 5000
– oil pressure switch is closed. The oil pressure warning is cancelled once engine speed is
below 5000 1 rpm.
If the oil pressure switch is opened for only 0.5 to 3 s at an engine speed of above 500
rpm, it is stored in the combination processor of the dash panel insert. If this condition
– occurs 3 times when the engine is running, the oil pressure warning is immediately
activated and is not cancelled below 1500 rpm. The oil pressure warning is cancelled if the
oil pressure switch is closed for more than 5 s at a speed of more than 1500 rpm, or at
"Ignition off".
Test conditions
l Engine oil level o.k., test
Oil pressure warning light -K3- must come on for about 3 seconds when the ignition is
l
switched on.
l Engine oil temperature at least 80°C (radiator fan must have run at least once)
Testing oil pressure switch
– Detach cable from oil pressure switch.
1 rpm, the oil pressure warning is also not cancelled if the
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