sensor TOYOTA LAND CRUISER 1998 Factory Repair Manual
[x] Cancel search | Manufacturer: TOYOTA, Model Year: 1998, Model line: LAND CRUISER, Model: TOYOTA LAND CRUISER 1998Pages: 3115, PDF Size: 54.88 MB
Page 16 of 3115
AC1HO-05
I24786
Pressure Switch Compressor and Magnetic Clutch
Ambient Temperature Sensor
CondenserNo.1 Junction Block
HTR Relay
RR HTR Relay
MG CLT Relay
- AIR CONDITIONINGAIR CONDITIONING SYSTEM
AC-13
2738 Author: Date:
2004 LAND CRUISER (RM1071U)
LOCATION
Page 17 of 3115
I24787
Front Heater Unit
Heater Radiator
Air Mix Servomotor
Air Outlet Servomotor Solar Sensor
Front Cooling Unit
Expansion Valve
Evaporator
Evaporator Temperature Sensor Rear Heater Unit
Blower Motor
Power Transistor
Heater Radiator
Air Mix Servomotor
Air Inlet Temperature Sensor
Room Temperature Sensor
(for Rear A/C)
Rear Cooling Unit
Blower Motor
Power Transister
Evaporator
Thermistor
Expansion Valve with Magnetic Valve
Blower Unit
Blower Motor
Blower Motor Control Rela
y
Air Inlet ServomotorA/C Amplifier
Integration Control Panel Room Temperature Sensor
(for Front A/C)
Rear A/C Control Switchw/ EMV:
w/o EMV:
A/C Control
A/C Amplifier
Cowl Side J/B LH
ACC Fuse
Cowl Side J/B RH
RR A/C AC-14
- AIR CONDITIONINGAIR CONDITIONING SYSTEM
2739 Author: Date:
2004 LAND CRUISER (RM1071U)
Page 24 of 3115
- AIR CONDITIONINGAIR CONDITIONING SYSTEM
AC-9
2734 Author: Date:
2004 LAND CRUISER (RM1071U)
3. INSPECT IDLE-UP SPEED
(a) Warm up engine
(b) Inspect idle-up speed when following conditions are es-
tablished.
Test conditions:
Fan speed selector at ºHIº position
Temperature control dial at ºCOOLº position
A/C switch ON
Put gear shift in neutral
Magnetic clutch conditionIdle-up speed
Magnetic clutch not engaged700 ± 50 rpm
Magnetic clutch engaged780 ± 50 rpm
If idle speed is not as specified, check the idle control system.
4. INSPECT FOR LEAKAGE OF REFRIGERANT
(a) Stop engine.
(b) Secure good ventilation (The gas leak detector may not
react to volatile gases which are not refrigerant, such as
evaporated gasoline and exhaust gas)
(c) Repeat the test 2 or 3 times
(d) Make sure that there is some refrigerant remaining in the
refrigeration system.
When compressor is OFF: approx. 392 - 588 kPa (4 - 6
kgf´cm
2, 57 - 85 psi)
(e) Bring the gas leak detector close to the drain hose before
performing the test.
HINT:
After the blower motor stops, leave the cooling for more
than 15 minutes.
Expose the gas leak detector sensor under the drain
hose.
When bring the gas leak detector close to the drain hose,
make sure that the gas leak detector does not react to the
volatile gases.
If gas leaks are detected, lift up the vehicle.
(f) If gas leaks are not detected on the drain hose, remove
the blower resistor from the cooling unit. Then insert the
gas leak detector sensor into the unit to perform the test.
(g) Disconnect the connector and leave the pressure switch
for approx. 20 minutes. Then bring the gas leak detector
close to the pressure switch to perform the test.
(h) Bring the gas leak detector close to the refrigerant lines.
Page 27 of 3115
AC1LQ-04
I08494
AC-90
- AIR CONDITIONINGAIR INLET TEMPERATURE SENSOR
2815 Author: Date:
2004 LAND CRUISER (RM1071U)
AIR INLET TEMPERATURE
SENSOR
INSPECTION
1. REMOVE FRONT SEATS
2. REMOVE REAR CONSOLE BOX
3. REMOVE FRONT CONSOLE BOX COVER
4. REMOVE LOWER CENTER CLUSTER FINISH PANEL
5. REMOVE FRONT DOOR SCUFF PLATES
6. REMOVE COWL SIDE TRIMS
7. REMOVE REAR DOOR SCUFF PATES
8. REMOVE CENTER PILLAR GARNISHES
9. REMOVE AIR INLET TEMPERATURE SENSOR
(a) Slide the floor carpet backward.
(b) Disconnect the connector.
(c) Remove the screw and the air inlet temperature sensor.
10. INSPECT AIR INLET TEMPERATURE SENSOR CIR-
CUIT (See page DI-1342)
11. INSTALL AIR INLET TEMPERATURE SENSOR
(a) Install the air inlet temperature sensor with the screw.
(b) Connect the connector.
(c) Install the floor carpet.
12. INSTALL CENTER PILLAR GARNISHES
13. INSTALL REAR DOOR SCUFF PLATES
14. INSTALL COWL SIDE TRIMS
15. INSTALL FRONT DOOR SCUFF PLATES
16. INSTALL REAR CONSOLE BOX
17. INSTALL FRONT SEATS
Page 28 of 3115
I06741
AC1LK-06
AC-84
- AIR CONDITIONINGAIR MIX SERVOMOTOR (for Front A/C)
2809 Author: Date:
2004 LAND CRUISER (RM1071U)
AIR MIX SERVOMOTOR (for Front
A/C)
INSPECTION
1. REMOVE AIR MIX SERVOMOTOR
(a) Disconnect the connector.
(b) Remove the 2 screws and the air mix servomotor.
2. INSPECT AIR MIX SERVOMOTOR OPERATION
(See page DI-1354)
3. INSPECT AIR MIX DAMPER POSITION SENSOR
(See page DI-1345)
4. INSTALL SERVOMOTOR
(a) Install the servomotor with the 3 screws.
(b) Connect the connector.
Page 30 of 3115
I06756
AC1LP-05
- AIR CONDITIONINGAMBIENT TEMPERATURE SENSOR
AC-89
2814 Author: Date:
2004 LAND CRUISER (RM1071U)
AMBIENT TEMPERATURE
SENSOR
INSPECTION
1. REMOVE AMBIENT TEMPERATURE SENSOR
(a) Disconnect the connector.
(b) Remove the bolt and the ambient temperature sensor.
2. INSPECT AMBIENT TEMPERATURE SENSOR CIR-
CUIT (See page DI-1319)
3. INSTALL AMBIENT TEMPERATURE SENSOR
(a) Install the ambient temperature sensor to the condenser
upper bracket.
(b) Connect the connector.
Page 33 of 3115
AC1KW-05
- AIR CONDITIONINGBLOWER UNIT
AC-57
2782 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION
1. INSPECT AIR INLET SERVOMOTOR OPERATION (See page DI-1357)
2. INSPECT AIR INLET DAMPER POSITION SENSOR CIRCUIT (See page DI-1348)
Page 44 of 3115
AC1IK-03
I068122
1
I06813
3
AC-60
- AIR CONDITIONINGCOMPRESSOR AND MAGNETIC CLUTCH
2785 Author: Date:
2004 LAND CRUISER (RM1071U)
COMPRESSOR AND MAGNETIC
CLUTCH
ON-VEHICLE INSPECTION
1. INSPECT COMPRESSOR FOR METALLIC SOUND
Check there is abnormal metallic sound from the compressor
when the A/C switch is ON.
If abnormal metallic sound is heard, replace the compressor as-
sembly.
2. INSPECT REFRIGERANT PRESSURE
(See page AC-3)
3. INSPECT VISUALLY FOR LEAKAGE OF REFRIGER-
ANT
Using a gas leak detector, check for leakage of refrigerant.
If there is any leakage, replace the compressor assembly.
4. INSPECT COMPRESSOR LOCK SENSOR RESIS-
TANCE
(a) Disconnect the connector.
(b) Measure resistance between terminal 1 and 2.
Standard resistance:
570 - 1,050 W at 20°C (68 °F)
If resistance is not as specified, replace the compressor.
5. CHECK FOR LEAKAGE OF GREASE FROM CLUTCH
BEARING
6. CHECK FOR SIGNS OF OIL ON PRESSURE PLATE OR
ROTOR
7. INSPECT MAGNETIC CLUTCH BEARING FOR NOISE
(a) Start engine.
(b) Check for abnormal noise from the compressor when the
A/C switch is OFF.
If abnormal noise is being emitted, replace the rotor of magnetic
clutch.
8. INSPECT MAGNETIC CLUTCH OPERATION
(a) Disconnect the connector.
(b) Connect the positive (+) lead from the battery to terminal
3 and the negative (-) lead to the body ground.
(c) Check that the magnetic clutch is energized.
If operation is not as specified, replace the magnetic clutch.
Page 56 of 3115
AC1LA-03
I06764
Antenna RelayNo.1 Cooler Cover
Evaporator O-RingSuction Tube
Liquid Tube
Clamp
Instrument Panel
Evaporator Temperature SensorEvaporatorExpansion Valve
N´m (kgf´cm, in.´lbf)Grommet
: Specified torque
3.4 (35, 30)
Clamp
O-Ring
O-Ring
Non-reusable part
Tube
AC-74
- AIR CONDITIONINGFRONT A/C EVAPORATOR
2799 Author: Date:
2004 LAND CRUISER (RM1071U)
COMPONENTS
Page 57 of 3115
AC1LC-02
I06698
I06699
AC-76
- AIR CONDITIONINGFRONT A/C EVAPORATOR
2801 Author: Date:
2004 LAND CRUISER (RM1071U)
DISASSEMBLY
1. PULL OUT EVAPORATOR TEMPERATURE SENSOR
2. REMOVE EXPANSION VALVE
Using a hexagon wrench (5.0mm, 0.20 in.), remove the 2 bolts
and separate the expansion valve and the evaporator.
Torque: 3.4 N´m (35 kgf´cm, 30 in.´lbf)
NOTICE:
Cap the open fittings immediately to keep moisture or dirt
out of the system.
HINT:
At the time of reassembly, lubricate 4 new O-rings with com-
pressor oil and install them to the valve. If evaporator is re-
placed, add compressor oil to the evaporator.
Add: 40 cc (1.4 fl.oz.)
Compressor oil: ND-OIL8 or equivalent