Testing Oil Pressure And Oil Pressure Switch - Skoda Octavia Workshop Manual

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Lubrication System
Testing oil pressure and oil
pressure switch
Special tools, testers and aids required
♦ Oil pressure tester (e.g. V.A.G 1342)
♦ Diode test lamp (e.g. V.A.G 1527)
♦ Adapter cable set (e.g. V.A.G 1594)
♦ Current flow diagram
Operation of dynamic oil pressure warning
system
Testing warning lamp
After ignition on („terminal 15 on") and engine
not running, the oil pressure warning lamp
flashes (not on models with Auto Check
System).
Warning criteria
l Engine not running and oil pressure switch
closed.
l Coolant temperature greater than 60 °C,
engine speed greater than 1500 rpm and oil
pressure switch open.
l At an engine speed of more than 5000 rpm
an active oil warning is not cancelled,
irrespective of the position of the oil pressure
switch.
l If the voltage supply of the control unit is o.k.
(terminal 15) and the oil pressure switch is
open for longer than 0.5 seconds at engine
speeds of more than 1500 rpm, this is stored.
If this condition occurs three times during
„terminal 15 on", the warning becomes or
remains active even at engine speeds of less
than 1300 rpm.
Test conditions
l Engine oil level o.k.; inspect ⇒ page 17-10
l Oil pressure warning lamp (K3) should come
on when ignition switched on.
l The o.k. readout on vehicles with Auto Check
System should come on (select symbol)
l Engine oil temperature at least 80 °C (radiator
fan should have cut in once)
OCTAVIA
Edition 08.96
S00.5104.50.20