Toyota T100 1996 Service Manual page 1877

BE−42
w/ Tachometer
w/o Tachometer
Warning Light
Ignition
Switch
Battery
Oil Pressure Gauge
Ignition
Switch
Battery
1996 TOYOTA T100 (RM449U)
BODY ELECTRICAL
12.
B
Measure the resistance between terminals.
A
C
A B
HINT:
Connect the test leads so that the current from the ohmmeter
can flow according to the above order. This circuit includes the
diode.
If resistance value is not as specified, replace the receiver
gauge.
Z09691
13.
(a)
(b)
If the warning light does not light up, test the bulb.
N02651
14.
(a)
(b)
(c)
HINT:
Oil pressure should be over 49 kPa (0.5 kgf/cm
If operation is not as specified, replace the sender gauge.
BE0146
15.
(a)
(b)
Sender
Gauge
BE1222
− COMBINATION METER
INSPECT ENGINE COOLANT TEMPERATURE RE-
CEIVER GAUGE RESISTANCE
w/ Tachometer:
Between terminals
A − B
A − C
B − C
w/o Tachometer:
Between terminals
A − B
INSPECT OIL PRESSURE WARNING LIGHT
Disconnect the connector from the warning switch and
ground terminal on the wire harness side connector.
Turn the ignition switch ON, check that the warning light
lights up.
INSPECT OIL PRESSURE SENDER GAUGE
Disconnect the connector from the sender gauge.
Check that there is continuity between terminal and
ground with the engine stopped.
Check that there is no continuity between terminal and
ground with the engine running.
INSPECT RECEIVER OIL PRESSURE GAUGE OP-
ERATION
Disconnect the connector from the sender gauge.
Turn the ignition switch ON, check that the receiver gauge
needle indicates LOW.
Resistance (Ω)
Approx. 150.0
Approx. 54.0
Approx. 138.0
Resistance (Ω)
Approx. 25.0
2
, 7.1 psi).