1996 TOYOTA T100 coolant temperature

Downloaded from www.Manualslib.com manuals search engine SF0CS−03
P21183
SF−52
− SFI (5VZ−FE)ENGINE COOLANT TEMPERATURE (ECT) SENSOR
1996 TOYOTA T100 (RM449U)
INSPECTION
1. DRAIN ENGINE COOLANT
2. DISCONNECT UPPER RADIATOR HOSE FROM WA-
TER OUTLET
3. REMOVE NO. 2 TIMING BELT COVER
(a) Disconnect the PS air hose from the clamp.
(b) Disconnect the 3 cord clamps of the high−tension cords
from the belt cover.
(c) Remove the 6 bolts, timing belt cover and gasket.
(d) Disconnect the camshaft position sensor connector.
4. REMOVE FUEL PIPE
5. REMOVE ECT SENSOR
(a) Disconnect the ECT sensor connector.
(b) Using a 19 mm deep socket wrench, remove the ECT
sensor and gasket.

Downloaded from www.Manualslib.com manuals search engine Z02917
Ohmmeter
Acceptable
TEMPERATURE °C (°F)
RESISTANCE kΩ
− SFI (5VZ−FE)ENGINE COOLANT TEMPERATURE (ECT) SENSOR
SF−53
1996 TOYOTA T100 (RM449U)
6. INSPECT ECT SENSOR
Using an ohmmeter, measure the resistance between the ter-
minals.
Resistance:
Refer to the graph
If the resistance is not as specified, replace the ECT sensor.
7. REINSTALL ECT SENSOR
(a) Install a new gasket to the ECT sensor.
(b) Using a 19 mm deep socket, install the ECT sensor.
Torque: 20 N·m (200 kgf·cm, 14 ft·lbf)
(c) Connect the ECT sensor connector.
8. REINSTALL FUEL PIPE
Install the fuel pipe with 4 new gaskets and the 2 union bolts.
Torque: 34.3 N·m (350 kgf·cm, 25 ft·lbf)
9. REINSTALL NO.2 TIMING BELT COVER
Torque: 9 N·m (90 kgf·cm, 80 in.·lbf)
10. RECONNECT UPPER RADIATOR HOSE TO WATER
OUTLET
11. REFILL WITH ENGINE COOLANT

Downloaded from www.Manualslib.com manuals search engine BE−6
− BODY ELECTRICALBODY ELECTRICAL SYSTEM
1996 TOYOTA T100 (RM449U)
COMBINATION METER
Meter, Gauge and Illumination:
SymptomSuspect AreaSee page
Tachometer, fuel gauge oil Pressure and water temperature
gauge do not operate
1. GAUGE Fuse (Junction Block No.1)
2. Combination Meter Wiring Circuit
3. Wire Harness
4. Meter Circuit Plate−
BE−36
−
BE−36
Speedometer does not operate1. Vehicle Speed Sensor
2. Speedometer Driven Gear and Drive GearBE−38
−
Tachometer does not operate
1. Combination Meter Wiring Circuit
2. Wire Harness
3. Igniter
4. Meter Circuit PlateBE−36
−
−
−
BE−36
Fuel gauge does not operate or abnormal operation
1. Fuel Receiver Gauge
2. Fuel Sender Gauge
3. Combination Meter Wiring Circuit
4. Wire HarnessBE−38
BE−38
BE−36
−
Engine coolant temperature gauge does not operate
or abnormal operation
1. Engine Coolant Temperature Receiver Gauge
2. Engine Coolant Temperature Sender Gauge
3. Combination Meter Wiring Circuit
4. Wire HarnessBE−38
BE−38
BE−36
−
Oil pressure gauge does not operte or abnormal operation
1. Oil Pressure Receiver Gauge
2. Oil Pressure Sender Gauge
3. Combination Meter Wiring Circuit
4. Wire HarnessBE−38
BE−38
BE−36
−
All illumination lights do not light up
1. TAIL Fuse (Junction Block No.1)
2. Light Control Rheostat
3. Wire Harness−
BE−38
−
Brightness does not change even when rheostat turned1. Bulb
2. Wire Harness−
−
Only one illumination light does not light up1. Bulb
2. Wire Harness−
−
COMBINATION METER
Warning Lights:
SymptomSuspect AreaSee page
Warning light do not light up (Except Discharge)
1. GAUGE Fuse (Junction Block No.1)
2. Combination Meter Wiring Circuit
3. Wire Harness−
BE−36
−
Oil pressure warning light does not light up
1. Bulb
2. Combination Meter Wiring Circuit
3. Oil Pressure Warning Switch
4. Wire Harness−
BE−36
BE−38
−
Washer Fluid Level Warning light does not light up
1. Bulb
2. Combination Meter Wiring Circuit
3. Washer Fluid Level Warning Switch
4. Wire Harness−
BE−36
BE−38
−
Fuel level warning light does not light up
1. Bulb
2. Combination Meter Wiring Circuit
3. Fuel Level Warning Switch
4. Wire Harness−
BE−36
BE−38
−

Downloaded from www.Manualslib.com manuals search engine N12609
N12610
N06616
Engine Coolant Temperature Gauge
Ignition
Switch
BatterySender
Gauge
N06617
Engine Coolant Temperature Gauge
Test
Bulb
(3.4 W)
− BODY ELECTRICALCOMBINATION METER
BE−41
1996 TOYOTA T100 (RM449U)
10. INSPECT FUEL LEVEL WARNING SWITCH
(a) Apply battery positive voltage between terminal 1 and 3,
and through a 3.4 W test bulb, check the bulb lights up.
HINT:
It will take a short time for bulb to light up.
(b) Submerge the switch in fuel, check that the bulb goes out.
If operation is not as specified, replace the sender gauge.
11. INSPECT ENGINE COOLANT TEMPERATURE RE-
CEIVER GAUGE OPERATION
(a) Disconnect the connector from the sender gauge.
(b) Turn the ignition switch ON, check that the receiver gauge
needle indicates COOL.
(c) Ground terminal on the wire harness side connecter
through a 3.4 W test bulb.
(d) Turn the ignition switch ON, 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.

Downloaded from www.Manualslib.com manuals search engine Z09691
w/ Tachometer
w/o TachometerB
A
C
B A
N02651
Warning Light
Ignition
Switch
Battery
BE0146
BE1222
Oil Pressure Gauge
Ignition
Switch
BatterySender
Gauge BE−42
− BODY ELECTRICALCOMBINATION METER
1996 TOYOTA T100 (RM449U)
12. INSPECT ENGINE COOLANT TEMPERATURE RE-
CEIVER GAUGE RESISTANCE
Measure the resistance between terminals.
w/ Tachometer:
Between terminalsResistance (Ω)
A − BApprox. 150.0
A − CApprox. 54.0
B − CApprox. 138.0
w/o Tachometer:
Between terminalsResistance (Ω)
A − BApprox. 25.0
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.
13. INSPECT OIL PRESSURE WARNING LIGHT
(a) Disconnect the connector from the warning switch and
ground terminal on the wire harness side connector.
(b) Turn the ignition switch ON, check that the warning light
lights up.
If the warning light does not light up, test the bulb.
14. INSPECT OIL PRESSURE SENDER GAUGE
(a) Disconnect the connector from the sender gauge.
(b) Check that there is continuity between terminal and
ground with the engine stopped.
(c) Check that there is no continuity between terminal and
ground with the engine running.
HINT:
Oil pressure should be over 49 kPa (0.5 kgf/cm
2, 7.1 psi).
If operation is not as specified, replace the sender gauge.
15. INSPECT RECEIVER OIL PRESSURE GAUGE OP-
ERATION
(a) Disconnect the connector from the sender gauge.
(b) Turn the ignition switch ON, check that the receiver gauge
needle indicates LOW.