Low Oil Pressure Warning System Inspection - Toyota Hilux Surf 1993 Owner's Manual

BODY ELECTRICAL SYSTEM
(Resistance)
Measure the resistance between terminals.
HINT: Connect the test leads so that the current form
the ohmmeter can flow according to the above order.
If resistance value is not as specified, replace the receiver
gauge.
Low Oil Pressure Warning System
1. INSPECT WARNING LIGHT
(a) Disconnect the connector from the warning switch
(b) Turn the ignition switch ON, check that the warning
2. INSPECT WARNING SWITCH
(a) Disconnect the connector from the switch.
(b) Check that there is continuity between terminal and
(c) Check that there is no continuity between terminal
HINT: Oil pressure should be over 0.3 kg/cm2 (4.3 psi,
29 kPa).
If operation is not as specified, replace the switch.
Oil Pressure Gauge System
1. INSPECT RECEIVER GAUGE
(Operation)
(a) Disconnect the connector from the sender gauge.
(b) Turn the ignition switch ON, check that the receiver
– Combination Meter
and ground terminal on the wire harness side con–
nector.
light will come on.
If the warning light does not come on, test the bulb.
ground with the engine stopped.
and ground with the engine running.
gauge needle indicates LOW.
BE–37