1996 TOYOTA LAND CRUISER Fuel gauge

BE−4
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BODY ELECTRICAL BODY ELECTRICAL SYSTEM
1996 LAND CRUISER (RM451U)
Back−
Up light remains on.
1. Park/Neutral Position Switch (A/T)
2. Wire Harness−
−
Only one light does not light up.1. Bulb
2. Wire Harness−
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STOP LIGHT SYSTEM
SymptomSuspect AreaSee page
Stop light does not light up.
1. STOP Fuse (I/P F/B)
2. Stop Light Switch
3. Bulb
4. Wire Harness−
BE−25 −
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Stop light remains always on.1. Stop Light Switch
2. Wire HarnessBE−25−
Only one light does not light up.1. Wire Harness
2. Bulb−
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WIPER AND WASHER SYSTEM
SymptomSuspect AreaSee page
Wipers do not operate or return to off position.
1. WIPER Fuse (I/P F/B)
2. Wiper Switch
3. Wiper Motor
4. Wiper Relay
5. Wire HarnessBE−27
BE−27
BE−27
BE−27
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Wipers do not operate in MIST.
1. Wiper Switch
2. Wiper Motor
3. Wiper Relay
4. Wire HarnessBE−27
BE−27
BE−27
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Wipers do not operate in INT.
1. Wiper Switch
2. Wiper Motor
3. Wiper Relay
4. Wire HarnessBE−27
BE−27
BE−27−
Washer does not operate.
1. Washer Hose or Nozzle Clogged
2. Washer Switch
3. Washer Motor
4. Wire Harness−
BE−27
BE−27 −
METER, GAUGES AND ILLUMINATION:
COMBINATION METER
SymptomSuspect AreaSee page
Tachometer, speedometer, engine coolant temperature gauge and
fuel gauge do not operate.1. GAUGE Fuse (I/P F/B)
2. Meter Circuit
3. Wire Harness−
BE−32 −
Speedometer does not operate.
1. No.1 Vehicle Speed Sensor
2. Speedometer Driven Gear and Drive Gear
3. Meter Circuit
4. Wire HarnessBE−34−
BE−32 −
Tachometer does not operate.
1. Meter Circuit
2. Igniter
3. Wire HarnessBE−32−
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Tachometer does not operate.
1. Meter Circuit
2. Igniter
3. Wire HarnessBE−32−
−
Voltmeter does not operate.1. Voltmeter Receiver Gauge
2. Wire HarnessAT −6
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BODY ELECTRICAL BODY ELECTRICAL SYSTEM
BE−5
1996 LAND CRUISER (RM451U)
Fuel gauge does not operate or abnormal operation.
1. Fuel Receiver Gauge
2. Fuel Sender Gauge
3. Meter Circuit
4. Wire HarnessBE−34
BE−34
BE−32
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Engine coolant temperature gauge does not operation or
abnormal operate.
1. Engine Coolant Temperature Receiver Gauge
2. Engine Coolant Temperature Sender Gauge
3. Meter Circuit
4. Wire HarnessBE−34
BE−34
BE−32−
Oil pressure gauge does not operate or abnormal operation.
1. Oil Pressure Receiver Gauge
2. Oil Pressure Sender Gauge
3. Meter Circuit
4. Wire HarnessBE−34
BE−34
BE−34−
All illumination lights do not light up.
1. TAIL Fuse (I/P F/B)
2. Light Control Rheostat
3. Wire Harness−
BE−34 −
Brightness does not change even when rheostat turned.1. Bulb
2. Wire Harness−
−
Only one illumination light does not light up.1. Bulb
2. Wire Harness−
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WARNING LIGHTS:
COMBINATION METER
SymptomSuspect AreaSee page
Warning lights do not lights up.
(Except discharge, SRS and door open)1. GAUGE Fuse (I/P F/B)
2. Meter Circuit
3. Wire Harness−
BE−32 −
Brake warning light does not light up.
1. Bulb
2. Brake Fluid Level Switch
3. Parking Brake Switch
4. Meter Circuit
5. Wire Harness−
BE−34
BE−34
BE−32 −
Open door warning light does not light up.
1. Bulb
2. Door Courtesy Switch
3. DOME Fuse (No.2 R/B)
4. Meter Circuit
5. Wire Harness−
BE−21
BE−21 −
−
−
SRS warning light does not light up
1. Bulb
2. Airbag Sensor Assembly
3. ECU− B Fuse (I/P F/B)
4. Meter Circuit
5. Wire Harness−
−
−
BE−32 −
Discharge warning light does not light up.
1. Bulb
2. IGN Fuse (No.1 J/B)
3. Generator
4. Meter Circuit
5. Wire Harness−
−
−
BE−32 −
Seat belt warning light does not light up.
1. Bulb
2. Seat Belt Buckle Switch
3. Seat Belt Warning Relay (I/P F/B)
4. Meter Circuit
5. Wire Harness−
BE−34 −
BE−32 −
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BE−6
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BODY ELECTRICAL BODY ELECTRICAL SYSTEM
1996 LAND CRUISER (RM451U)
Engine oil level warning light does not light up.
1. Bulb
2. Meter Circuit
3. Engine Oil Level Warning Switch
4. Wire Harness−
BE−32
BE−34 −
Low oil pressure warning light does not light up.
1. Bulb
2. Low Oil Pressure Warning Switch
3. Meter Circuit
4. Wire Harness−
BE−32
BE−34 −
Fuel level warning light does not light up.
1. Bulb
2. Fuel Level Warning Switch
3. Meter Circuit
4. Wire Harness−
BE−34
BE−32 −
INDICATOR LIGHTS:
COMBINATION METER
SymptomSuspect AreaSee page
High beam indicator light does not light up.
1. Bulb
2. Headlight and Taillight System
3. Meter Circuit
4. Wire Harness−
BE−19
BE−32 −
Shift indicator lights do not light up. (ALL)
1. Shift Position Indicator Wiring Circuit
2. Park/Neutral Position Switch
3. Wire Harness
4. Bulb−
BE−34 AT −6
−
Shift indicator lights do not light up. (L, 2, D)
1. Bulb
2. Shift Position Indicator Wiring Circuit
3. Park/Neutral Position Switch
4. Light Control Rheostat
5. Wire Harness−
BE−34 AT −6
BE−34 −
Shift indicator lights do not light up. (PWR)
1. Bulb
2. Shift Position Indicator Wiring Circuit
3. Pattern Select Switch
4. Wire Harness−
BE−34 AT −6
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Shift indicator lights do not light up. (2nd START)
1. Bulb
2. Shift Position Indicator Wiring Circuit
3. ECM
4. Wire Harness−
AT −6
−
−
Only one shift indicator does not light up.1. Bulb
2. Shift Position Indicator Wiring Circuit−
BE−34
Indicator lights do not light up. (Except Turn, Hi −beam)1. GAUGE Fuse (I/P F/B)
2. Wire Harness−
−
O/D OFF indicator light does not light up.
1. Bulb
2. O/D Main Switch
3. Meter Circuit
4. Wire Harness−
−
BE−32 −
Malfunction indicator light does not light up.
1. Bulb
2. ECM
3. Wire Harness−
−
−
Cruise control indicator light does not light up.
1. Bulb
2. Cruise Control ECU
3. Meter Circuit
4. Wire Harness−
−
BE−32 −
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BODY ELECTRICAL COMBINATION METER
BE−35
1996 LAND CRUISER (RM451U)
RPM (DC 13.5 V, 25 °C (77 ° F))
Standard indicationAllowable range
700630 − 770
1,000900 − 1,100
2,0001,875 − 2,125
3,0002,850 − 3,150
4,0003,850 − 4,150
5,0004,850 − 5,150
4. INSPECT VOLTMETER
ON−VEHICLE:
Compare the tester and voltmeter indications.
If error is excessive, replace the voltemeter.
5. INSPECT FUEL RECEIVER GAUGE OPERATION
(a) Disconnect the connector from the sender gauge.
(b) Turn the ignition switch ON, and check that the receiver gauge needle indicates EMPTY.
(c) Connect terminals 4 and 5 on the wire harness side con- nector 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 towards the full
side.
HINT:
Because of the silicon oil in the gauge, it will take a short time
for needle to stabilize.
If operation is not as specified, inspect the receiver gauge resis-
tance.
6. INSPECT FUEL RECEIVER GAUGE RESISTANCE
Between terminalsResistance (Ω )
A − B85.5 − 105.5
A − C126 − 150
B − C*90 − 11 0
*: Include voltmeter resistance
If resistance value is not as specified, replace the fuel receiver
gauge.
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BE−36
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BODY ELECTRICAL COMBINATION METER
1996 LAND CRUISER (RM451U)
7. INSPECT FUEL SENDER GAUGE OPERATION
(a) Connect a series of three 1.5 V dry cell batteries.
(b) Connect the positive (+) lead from the dry cell batteries to
terminal 4 through a 3.4 W test bulb and the negative ( −)
lead to terminal 5.
(c) Connect the positive (+) lead from the voltmeter to termi- nal 4 and the negative ( −) lead to terminal 5.
(d) Check that the voltage rises as the float is moved from the
full to empty position.
8. INSPECT FUEL SENDER GAUGE RESISTANCE
Measure the resistance between terminals 4 and 5.
Float position: mm (in.)Resistance (Ω )
F: Approx. 15.0 (0.591)Approx. 3.0
E: Approx. 200.0 (7.874)Approx. 110.0
If resistance value is not as specified, replace the sender
gauge.
9. INSPECT FUEL LEVEL WARNING LIGHT
(a) Disconnect the connector from the sender gauge.
(b) Connect terminals 1 and 5 on the wire harness side con-
nector.
(c) Turn the ignition switch ON, and check that the warning
light lights up.
If the warning light does not light up, test the bulb.
10. INSPECT FUEL LEVEL WARNING SWITCH
(a) Apply battery positive voltage between terminals 1 and 5
through a 3.4 W test bulb, and check that the bulb lights
up.
HINT:
It will take a short time for the bulb to light up.
(b) Submerge the switch in fuel, and check that the bulb goes
out.
If operation is not as specified, replace the sender gauge.
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P22478
Battery
FL AM1
Fusible Link
1F6
B−L
2
2 2
2
3
4
AM1
R/B No.2
Junction
Connector (J4)
Y Y
IG Switch
4 2
1 B−W
B−YFuse Block
GAUGE
Y
B
B 6IH14
B−W Park/Neutral
Position Switch
3
2 G−R G−W
O
O
IH2
To A/T Indicator Light
(Combination Meter)
Starter
1
S1 E7
E7
E7
17
16
22 NSW
E1B+
E1 E1
L
2 ECM
W
EA26
B
B
B−R
65 3
2IH1
21
B−W
IH2
DI−108
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DIAGNOSTICS ENGINE
1996 LAND CRUISER (RM451U)
DTC P1780 Park/Neutral Position Switch Malfunction
CIRCUIT DESCRIPTION
The park/neutral position switch goes on when the shift lever is in the N o\
r P shift position. When it goes on
terminal NSW of the ECM is grounded to body ground via the starter relay, thus the terminal NSW voltage
becomes 0 V. When the shift lever is in the D, 2, L or R position, the park/neutral\
position switch goes off,
so the voltage of ECM, terminal NSW becomes battery voltage, the voltage of the ECM internal power
source. If the shift lever is moved from the N position to the D position, this signal is used for air\
−fuel ratio
correction and for idle speed control (estimated control), etc.
DTC No.DTC Detecting ConditionTrouble Area
P1780
2 or more switches are ON simultaneously for ”N”, ”2” and ”\
L”
position (2 trip detection logic)
 Short in park/neutral position switch circuit
 Park/neutral position switch
 ECMWhen driving under conditions (a) and (b) for 30 sec. or more
the park/neutral position switch is ON (N position):
(2 trip detection logic)
(a) Vehicle speed: 70 km/h (44 mph) or more
(b) Engine speed: 1,500 − 2,500 rpm
HINT:
After confirming DTC P1780 use the T OYOTA hand−held tester to confirm the PNP switch signal from ”CUR-
RENT DATA”.
WIRING DIAGRAM
DI5PV−02
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EM0KR−04
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ENGINE MECHANICAL COMPRESSION
EM−3
506
Author: Date:
1996 LAND CRUISER (RM451U)
COMPRESSION
INSPECTION
HINT:
If there is lack of power, excessive oil consumption or poor fuel
economy, measure the compression pressure.
1. WARM UP AND STOP ENGINE
Allow the engine to warm up to normal operating temperature.
2. DISCONNECT DISTRIBUTOR CONNECTOR
3. REMOVE SPARK PLUGS (See page IG−1 )
4. CHECK CYLINDER COMPRESSION PRESSURE
(a) Insert a compression gauge into the spark plug hole.
(b) Fully open the throttle.
(c) While cranking the engine, measure the compression pressure.
HINT:
Always use a fully charged battery to obtain engine speed of
250 rpm or more.
(d) Repeat steps (a) through (c) for each cylinder.
NOTICE:
This measurement must be done in as short a time as pos-
sible. Compression pressure:
1,176 kPa (12.0 kgf/cm
2, 171 psi) or more
Minimum pressure: 883 kPa (9.0 kgf/cm
2, 128 psi)
Difference between each cylinder:
98 kPa (1.0 kgf/cm
2, 14 psi) or less
If the cylinder compression in one or more cylinders is low, pour
a small amount of engine oil into the cylinder through the spark
plug hole and repeat steps (a) through (c) for cylinders with low
compression.
If adding oil helps the compression, it is likely that
the piston rings and/or cylinder bore are worn or
damaged.
If pressure stays low, a valve may be sticking or
seating is improper, or there may be leakage past
the gasket.
5. REINSTALL SPARK PLUGS (See page IG−1 )
6. RECONNECT DISTRIBUTOR CONNECTOR
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ENGINE MECHANICAL CYLINDER HEAD
EM−29
1996 LAND CRUISER (RM451U)
16. DISCONNECT PS RESERVOIR TANK
Remove the 3 bolts and disconnect the reservoir tank.
17. DISCONNECT RADIATOR INLET HOSE
18. DISCONNECT NO. 3 WATER BYPASS HOSE
19. REMOVE GENERATOR (See page CH−8 )
20. REMOVE THROTTLE BODY (See page SF−45)
21. REMOVE OIL DIPSTICKS AND GUIDES FOR ENGINE AND TRANSMISSION
(a) Remove the 2 mounting bolts.
(b) Pull out the dipstick together with dipstick guide.
(c) Remove the O−ring from the dipstick guide.
22. REMOVE INTAKE MANIFOLD STAY
Remove the 2 bolts and intake manifold stay.
23. DISCONNECT FUEL INLET HOSE
Remove the union bolt and 2 gaskets, and disconnect the fuel
inlet hose from the fuel filter.
24. DISCONNECT ENGINE WIRE
(a) Disconnect the connectors. (1) Disconnect the ECT sender gauge connector.
(2) Disconnect the ECT cut switch connector.
(3) Disconnect the ECT sensor connector.
(4) Disconnect the knock sensor connector.
(5) Disconnect the crankshaft position sensor connec-tor.
(6) Remove the bolt and disconnect the engine wire from the cylinder block.
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