coolant level TOYOTA LAND CRUISER 1986 Factory Repair Manual

BE-6
- BODY ELECTRICALTROUBLESHOOTING
2379 Author
: Date
:
2004 LAND CRUISER (RM1071U) Rear washer motor does not operate.
1. Rear Washer Motor
2. Rear Washer Switch
3. Wire HarnessBE-52
BE-52
-
Washer fluid does not operate.1. Washer Hose and Nozzle-
*1: Inspect wiper arm and blade set positions.
COMBINATION METER (Meter Gauges and Illumination):
SymptomSuspect AreaSee page
Tachometer, fuel gauge and engine coolant temperature gauge do
not operate.1. GAUGE2 Fuse
2. Combination Meter
3. Wire Harness-
BE-58
-
Speedometer does not operate.
1. Speed Sensor
2. Combination Meter
3. Wire HarnessBE-63
BE-58
-
Tachometer does not operate.
1. Igniter
2. Combination Meter
3. Wire HarnessIG-1
BE-58
-
Fuel gauge does not operate or is in abnormal operation.
1. Fuel Receiver Gauge
2. Fuel Sender Gauge
3. Combination Meter
4. Wire HarnessBE-63
BE-63
BE-58
-
Oil pressure gauge does not operate.
1. Oil Pressure Receiver Gauge
2. Oil Pressure Sender Gauge
3. Combination Meter
4. Wire HarnessBE-63
BE-63
BE-58
-
Voltmeter does not operate.
1. Voltmeter
2. Combination Meter
3. Wire HarnessBE-63
BE-58
-
Engine coolant temperature gauge does not operate or is in ab-
normal operation
1. Engine Coolant Temperature Receiver Gauge
2. Engine Coolant Temperature Sender Gauge
3. Combination Meter
4. Wire HarnessBE-63
BE-63
BE-58
-
All illumination lights do not light up.1. Light Control Rheostat
2. Wire HarnessBE-63
-
Brightness does not change even when rheostat is turned.1. Bulb
2. Wire Harness-
-
Only one illumination light does not light up.1. Bulb
2. Wire Harness-
-
COMBINATION METER (Warning Light):
SymptomSuspect AreaSee page
Warning lights do not light up. (Except discharge, open door and
SRS)1. GAUGE1 Fuse
2. Combination Meter
3. Wire Harness-
BE-58
-
Fuel level warning light does not light up.
1. LED
2. Combination Meter
3. Fuel Sender Gauge
4. Wire Harness-
BE-58
BE-63
-
ABS warning light does not light up.
1. LED
2. ABS ECU
3. Wire Harness-
DI-502
-

CH06N-05
B16653
B00809
CH-16
- CHARGINGGENERATOR
1851 Author
: Date
:
2004 LAND CRUISER (RM1071U)
INSTALLATION
1. INSTALL GENERATOR
(a) Install the generator with the bolt and 2 nuts.
Torque:
Bolt: 39 N´m (400 kgf´cm, 29 ft´lbf)
Nut 10 mm: 39 N´m (400 kgf´cm, 29 ft´lbf)
Nut 8 mm: 15.5 N´m (158 kgf´cm, 11 ft´lbf)
(b) Connect the generator connector.
(c) Connect the generator wire with the nut.
Torque: 9.8 N´m (100 kgf´cm, 87 in.´lbf)
(d) Install the terminal cap.
(e) Install the wire clamp to the cord clip on the generator.
2. INSTALL PS VANE PUMP PULLEY
(See page SR-47)
3. INSTALL RADIATOR ASSEMBLY
(See page CO-19)
4. INSTALL GENERATOR DRIVE BELT
Install the belt by turning the belt tensioner counterclockwise.
HINT:
The pulley bolt for the belt tensioner has a left - hand thread.
5. FULL ENGINE COOLANT
6. START ENGINE AND CHECK FOR LEAKS
7. RECHECK ENGINE COOLANT LEVEL
8. PERFORM ON-VEHICLE INSPECTION
(See page CH-2)
9. INSTALL ENGINE UNDER COVER NO.1

CO0IO-06
- COOLINGCOOLANT
CO-1
1762 Author
: Date
:
2004 LAND CRUISER (RM1071U)
COOLANT
INSPECTION
HINT:
Check the coolant level when the engine is cold.
1. CHECK ENGINE COOLANT LEVEL AT RADIATOR RESERVOIR
The engine coolant level should be between the ºLOWº and ºFULLº lines at normal temperature
(20°C(68°F)).
If low, check for leaks and add ºToyota Super Long Life Coolantº or similar high quality ethylene glycol based
non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life hybrid organic acid technology
up to the ºFULLº line.
2. CHECK ENGINE COOLANT QUALITY
(a) Remove the radiator cap.
CAUTION:
To avoid the danger of being burned, do not remove the radiator cap while the engine and radiator
are still hot, as fluid and steam can be blown out under pressure.
(b) There should not be any excessive deposits of rust or scale around the radiator cap or radiator filler
hole, and the coolant should be free from oil.
If excessively dirty, clean the coolant passages and replace the coolant.
(c) Reinstall the radiator cap.

CO0IP-10
B04480Drain PlugDrain Plug Drain Plug
CO-2
- COOLINGCOOLANT
1763 Author
: Date
:
2004 LAND CRUISER (RM1071U)
REPLACEMENT
1. DRAIN ENGINE COOLANT
(a) Remove the radiator cap.
CAUTION:
To avoid the danger of being burned, do not remove the ra-
diator cap while the engine and radiator are still hot, as fluid
and steam can be blown out under pressure.
(b) Remove the 3 drain plugs on the engine and radiator, and
drain the coolant.
(c) Close the 3 drain plugs.
Torque: 12.7 N´m (130 kgf´cm, 9 ft´lbf) for engine
2. REFILL WITH ENGINE COOLANT
(a) Slowly fill the system with coolant.
Capacity:
w/ Front heater: 14.8 liters (15.6 US qts, 13.0 Imp. qts)
w/ Front heater and rear heater:
15.3 liters (16.2 US qts, 13.4 Imp. qts)
NOTICE:
Do not use plain water alone.
HINT:

Use of improper coolants may damage the engine cooling
system.

Use ºToyota Super Long Life Coolantº or similar high qual-
ity ethylene glycol based non-silicate, non-amine, non-
nitrite, and non-borate coolant with long-life hybrid or-
ganic acid technology.

New Toyota vehicles are filled with Toyota Super Long
Life Coolant (color is pink, premixed ethylene glycol con-
centration is approximately 50 % and freezing tempera-
ture is -35°C (-31°F)). When replacing the coolant, Toyo-
ta Super long Life Coolant is recommended.

Observe the coolant level inside the radiator by pressing
the inlet and outlet radiator hoses several times by hand.
if the coolant level goes down, add the coolant.
If the coolant level goes down, add the coolant.
(b) Install the radiator cap.
(c) Bleed the cooling system.
(1) Start the engine, and open the heater water valve.
(2) Maintain the engine speed at 2,000 - 2,500 rpm,
and warm up the engine.
(d) Stop the engine, and wait until the engine coolant cools
down.
(e) Refill coolant into the reservoir until it is ºFULLº.
3. CHECK FOR ENGINE COOLANT LEAKS
4. CHECK ENGINE COOLANT SPECIFIC GRAVITY COR-
RECTLY

CO0J2-03
B08321
B04475
B08320
- COOLINGRADIATOR
CO-19
1780 Author
: Date
:
2004 LAND CRUISER (RM1071U)
INSTALLATION
1. INSTALL SIDE SUPPORTS TO RADIATOR
(a) Install the 2 side support with 8 nuts.
Torque: 12.7 N´m (130 kgf´cm, 9 ft´lbf)
(b) Install the 2 brackets with the 4 nuts.
Torque: 20 N´m (200 kgf´cm, 13 ft´lbf)
2. INSTALL RADIATOR ASSEMBLY
(a) Place the radiator assembly to the body.
(b) Install the 2 nuts.
Torque: 20 N´m (200 kgf´cm, 15 ft´lbf)
(c) Install the radiator assembly with the 2 bolts to the body.
Torque: 18 N´m (185 kgf´cm, 13 ft´lbf)
3. INSTALL FAN PULLEY, FAN SHROUD, FAN WITH
FLUID COUPLING AND GENERATOR DRIVE BELT
(a) Place the fan with fluid coupling, fan pulley and fan shroud
in position.
(b) Temporarily install the fan pulley mounting nuts.
(c) Install the fan shroud with the 3 bolts.
Torque: 5.0 N´m (50 kgf´cm, 43 in.´lbf)
(d) Connect the A/T oil cooler hoses to the clamp on the fan
shroud.
(e) Install the generator drive belt. (See page CH-16)
(f) Tighten the 4 fan pulley mounting nuts.
(g) Install the 2 brackets on wire to the radiator wire with 2
bolts.
(h) Install the 2 clamps on the A/C discharge tube to the
brackets on the wire with the 2 nuts.
4. INSTALL RADIATOR RESERVOIR
(a) Install the grommet to the reservoir.
(b) Attach the lower side of the reservoir to the fun shuroud.
(c) install the reservoir with the 2 bolts.
(d) Connect the reservoir hose to the radiator.
(e) Install the clamp on the wire to the radiator.
5. CONNECT A/T OIL COOLER HOSES TO RADIATOR
6. CONNECT RADIATOR UPPER HOSE TO RADIATOR
7. CONNECT RADIATOR LOWER HOSE TO RADIATOR
8. FILL WITH ENGINE COOLANT
9. START ENGINE AND CHECK FOR ENGINE COOLANT
LEAKS
10. RECHECK ENGINE COOLANT LEVEL

CO0IX-02
B04466
Jiggle Valve30°30°
- COOLINGTHERMOSTAT
CO-13
1774 Author
: Date
:
2004 LAND CRUISER (RM1071U)
INSTALLATION
1. PLACE THERMOSTAT IN WATER INLET HOUSING
(a) Install a new gasket to the thermostat.
(b) Insert the thermostat into the water inlet housing with the
jiggle valve facing straight upward.
HINT:
The jiggle valve may be set within 30° of either side of the pre-
scribed position.
2. INSTALL WATER INLET
Install the water inlet with the 3 nuts.
Torque: 19 N´m (195 kgf´cm, 14 ft´lbf)
3. FILL WITH ENGINE COOLANT
4. START ENGINE AND CHECK FOR COOLANT LEAKS
5. RECHECK ENGINE COOLANT LEVEL

B04460
AB
- COOLINGWATER PUMP
CO-9
1770 Author
: Date
:
2004 LAND CRUISER (RM1071U)
(f) Install the water inlet and housing assembly with the 2
bolts. Alternately tighten the bolts.
Torque: 18 N´m (185 kgf´cm, 13 ft´lbf)
HINT:
Each bolt length is indicated in the illustration.
Bolt length:
76 mm (3.00 in.) for A
22 mm (0.87 in.) for B
3. INSTALL NO.2 IDLER PULLEY (See page EM-22)
4. INSTALL TIMING BELT (See page EM-22)
5. FILL WITH ENGINE COOLANT
6. START ENGINE AND CHECK FOR ENGINE COOLANT
LEAKS
7. RECHECK ENGINE COOLANT LEVEL

- DIAGNOSTICSENGINE
DI-65
258 Author
: Date
:
2004 LAND CRUISER (RM1071U)
DTC P0101 Mass or Volume Air Flow Circuit Range/
Performance Problem
CIRCUIT DESCRIPTION
Refer to DTC P0100, P0102 and P0103 on page DI-57.
DTC No.DTC Detecting ConditionTrouble Area
P0101
After engine is warmed up, conditions (a), (b), (c) and (d) con-
tinue for more than 10 seconds:
(2 trip detection logic)
(a) Throttle valve fully closed
(b) Voltage output of the mass air flow meter is more than 2.2
V.
(c) Engine coolant temperature is more than 70 °C (158 °F).
(d) Engine speed is less than 900 rpm.

Mass air flow meter
Conditions (a), (b) and (c) continue for more than 6 seconds
with engine speed: (2 trip detection logic)
(a) Engine speed is more than 0 rpm.
(b) VTA is more than 0.1 V.
(c) Voltage output of the mass air flow meter is less than 0.25
V.
MONITOR DESCRIPTION
The MAF (Mass Air Flow) meter helps the ECM calculate the amount of air flowing through the throttle valve.
The ECM uses this information to determine the fuel injection time and provide a proper air fuel ratio. Inside
the MAF meter, there is a heated platinum wire exposed to the flow of intake air. By applying a specific current
to the wire, the ECM heats this wire to a given temperature. The flow of incoming air cools the wire and an
internal thermistor, affecting their resistance. To maintain a constant current value, the ECM varies the volt-
age applied to these components in the MAF meter. The voltage level is proportional to the air flow through
the MAF meter. The ECM interprets this voltage as the intake air amount. If there is a defect in the MAF meter
or an open or short circuit, the voltage level will deviate outside the normal operating range. The ECM inter-
prets this deviation as a defect in the MAF meter and sets a DTC.
Example:
If the voltage is more than 2.2 V at idle or less than 0.25 V at idle OFF, the ECM interprets this as a defect
in the MAF meter and sets a DTC.
MONITOR STRATEGY
Related DTCsP0101Mass air flow meter rationality
Main sensors/componentsMass air flow meter
Required sensors/componentsRelated sensors/componentsEngine speed sensor, Engine coolant tempera-
ture sensor, Throttle position sensor
Frequency of operationContinuous
Duration10 sec. (High voltage)
6 sec. (Low voltage)
MIL operation2 driving cycles
Sequence of operationNone
DI1LC-17

- DIAGNOSTICSENGINE
DI-129
322 Author
: Date
:
2004 LAND CRUISER (RM1071U)
DTC P0134 Oxygen Sensor Circuit No Activity Detected
(Bank 1 Sensor 1)
DTC P0154 Oxygen Sensor Circuit No Activity Detected
(Bank 2 Sensor 1)
CIRCUIT DESCRIPTION
Refer to DTC P0031 on page DI-49.
DTC No.DTC Detecting ConditionTrouble Area
P0134
P0154
After the engine is warmed up, heated oxygen sensor (bank 1,
sensor 1) output does not indicate RICH (more than 0.45 V)
even once when the following conditions continue for 65 sec.
or more:
(a) Engine speed: 1,400 rpm or more
(b) Vehicle speed: 25 to 81 mph (40 to 130 km/h) or more
(c) Throttle valve does not fully closed
(d) 180 sec. or more after starting engine
(e) Engine coolant temperature more than 40°C (104°F)

Open or short in heated oxygen sensor circuit

Heated oxygen sensor

Heated oxygen sensor heater

EFI or ECD relay

Air induction system

Fuel pressure

PCV hose connection

PCV valve and hose

Injector

Gas leakage on exhaust system

PCV piping

ECM
HINT:

Bank 1 refers to bank that includes cylinder No. 1.

Bank 2 refers to bank that does not includes cylinder No. 1.

Sensor 1 refers to the sensor closer to the engine assembly.

After confirming DTC P0134 and P0154, check the output voltage of the heated oxygen sensor in the
"DIAGNOSIS / ENHANCE OBD II / DATA LIST / ALL" using the OBD II scan tool or the hand-held tester.
If output voltage of the heated oxygen sensor is always less than 0.1 V, heated oxygen sensor circuit
may be open or short.
MONITOR DESCRIPTION
The ECM uses the heated oxygen sensor to optimize the air-fuel mixture in closed-loop fuel control. This
control helps decrease exhaust emissions by providing the catalyst with a nearly stoichiometric mixture.
The sensor detects the oxygen level in the exhaust gas and the ECM uses this data to control the air-fuel
ratio. The sensor output voltage ranges from 0 V to 1 V. If the signal voltage is less than 0.4 V, the air-fuel
ratio is LEAN. If the signal voltage is more than 0.55 V, the air-fuel ratio is RICH. If the conditions for the
closed-loop fuel control are met and after a specified time-period, the sensor's output signal never indicates
RICH, the ECM will conclude that the closed-loop fuel control is malfunctioning. The ECM will illuminate the
MIL and a DTC is set.
DIC28-01

- DIAGNOSTICSENGINE
DI-187
380 Author
: Date
:
2004 LAND CRUISER (RM1071U)
MONITOR DESCRIPTION
The knock sensor located on the cylinder block, detects spark knock.
When spark knock occurs, the sensor pick-up vibrates in a specific frequency range. When the ECM detects
the voltage in this frequency range, it retards the ignition timing to suppress the spark knock.
The ECM also senses background engine noise with the knock sensor and uses this noise to check for faults
in the sensor. If the knock sensor signal level is too low for more than 10 sec., and if the knock sensor output
voltage is out of normal range, the ECM interprets this as a fault in the knock sensor and sets a DTC.
MONITOR STRATEGY
RltdDTCP0325Knock sensor (Bank 1) range check or rationalityRelated DTCsP0330Knock sensor (Bank 2) range check or rationality
Main sensors/componentsKnock sensor
Required sensors/componentsRelated sensors/components
Crankshaft position sensor, Camshaft position
sensor, Engine coolant temperature sensor,
Mass air flow meter
Frequency of operationContinuous
Duration10 sec.
MIL operationImmediate
Sequence of operationNone
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The monitor will run whenever the follow-
ing DTCs are not presentSee ºList of disable a monitorº (on page DI-3)
Battery voltage10 V-
IdleOFF
Time after engine start5 sec.-
Engine coolant temperature60C (140F)-
Intake air amount per revolution0.45 g/rev-
Engine speed2,000 rpm5,400 rpm
TYPICAL MALFUNCTION THRESHOLDS
Detection CriteriaThreshold
Sensor failure is indicated when the knock sensor output
level is below the specific threshold for:10 sec.