Engine Coolant
Temperature
Gauge
Ignition Switch
Battery
Sender
Gauge
Z06815
Engine Coolant Temperature Gauge
Ignition
Switch
Tester Bulb
(3.4 W)
Battery
BE1222
Oil Pressure Gauge
Ignit ion
Switch
Sender
Gauge
Battery
−
BODY ELECTRICAL
COMBINATION METER
BE
−
37
1996 LAND CRUISER (RM451U)
11.
INSPECT ENGINE COOLANT TEMPERATURE RE-
CEIVER GAUGE OPERATION
(a)
Disconnect the connector from the sender gauge.
(b)
Turn the ignition switch ON, and check that the receiver
gauge needle indicates COOL.
(c)
Ground terminal on the wire harness side connector
through a 3.4 W test bulb.
(d)
Turn the ignition switch ON, and check that the bulb lights
up and the receiver gauge needle moves to the hot side.
If operation is as specified, replace the sender gauge. Then re-
check the system.
If operation is not as specified, measure the receiver gauge re-
sistance.
12. INSPECT ENGINE COOLANT TEMPERATURE RE-
CEIVER GAUGE RESISTANCE
Measure the resistance between terminals.
Between terminals
Resistance (
Ω
)
A
−
B
71
−
79
A
−
C
117
−
141
B
−
C
185
−
215
HINT:
Connect the test leads so that the current from the ohmmeter
can flow according to the above order. This circuit include the
diode.
If resistance value is not as specified, replace the receiver
gauge.
13. INSPECT OIL PRESSURE RECEIVER GAUGE OP-
ERATION
(a)
Disconnect the connector from the sender gauge.
(b)
Turn the ignition switch ON, and check that the receiver
gauge needle indicates LOW.
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Version 1.00 - 12/21/2010