Page 89 of 3115
I07785
A/C AmplifierCooling Unit CaseBlower Motor
Blower Motor Case
Power Transistor O-RingEvaporator
5.4 (55, 48 in.´lbf)
Thermistor
Expansion Valve O-Ring
O-Ring
A/C Tube
14 (140, 10)
A/C Tube
Drain HoseCooling Unit Case x11
Cooling Unit Case
Grommet
N´m (kgf´cm, ft´lbf) : Specified torque
Non-reusable part
32 (330, 24)
x10 Wire Harness
x7
- AIR CONDITIONINGREAR COOLING UNIT
AC-31
2756 Author: Date:
2004 LAND CRUISER (RM1071U)
Page 90 of 3115
AC1KD-05
I06876
I06760
I06701
I06758
I06877x10 AC-34
- AIR CONDITIONINGREAR COOLING UNIT
2759 Author: Date:
2004 LAND CRUISER (RM1071U)
DISASSEMBLY
1. REMOVE A/C AMPLIFIER
Remove the 2 screws and the A/C amplifier.
2. REMOVE POWER TRANSISTOR
(a) Disconnect the connector.
(b) Remove the 2 screws and the power transistor.
3. REMOVE BLOWER CASE
(a) Remove the wire harness.
(b) Remove the 11 screws, 3 holding springs and separate
the cooling unit cases.
(c) Disconnect the connector.
(d) Remove the blower case.
4. REMOVE BLOWER MOTOR
Remove the 3 screws and the blower motor.
5. REMOVE EVAPORATOR
(a) Disconnect the 2 connector clamps.
(b) Remove the 10 screws and the 2 holding springs, and
separate the cooling unit cases.
Page 91 of 3115

I06703
I06702
I06704
I06705
- AIR CONDITIONINGREAR COOLING UNIT
AC-35
2760 Author: Date:
2004 LAND CRUISER (RM1071U)
(c) Pull out the thermistor from the evaporator.
(d) Remove the screw and the piping clamp.
(e) Loosen the 2 nuts and remove the tube and accessory.
Torque:
Liquid line: 14 N´m (140 kgf´cm, 10 ft´lbf)
Suction line: 32 N´m (330 kgf´cm, 24 ft´lbf)
NOTICE:
Cap the open fittings immediately to keep moisture or dirt
out of the system.
HINT:
At the time of reassembly, lubricate 2 new O-rings with com-
pressor oil and install them in the tubes.
(f) Remove the evaporator.
HINT:
At the time of reassembly, if evaporator was replaced, add com-
pressor oil to the new evaporator.
Add 40 cc: (1.4 fl.oz.)
Compressor oil: ND-OIL 8 or equivalent
6. REMOVE EXPANSION VALVE
Using a hexagon wrench (5.0 mm, 0.20 in.), remove the 2 bolts
and separate the expansion valve and evaporator.
Torque: 5.4 N´m (55 kgf´cm, 48 in.´lbf)
HINT:
At the time of reassembly, lubricate 4 new O-rings with com-
pressor oil and install them in the tubes.
Page 92 of 3115

AC1KE-05
I04936
2 1
I03338
Thermometer
Ice
ThermistorOhmmeter
10 cm
(0.39 in.)
Z04352
5,000
500
0
0 4,500
4,000
3,500
3,000
2,500
2,000
1,500
1,000
51015 2025
32 41 50 59 68 77 (W)
(°C)
(°F)
I06706
1 2 AC-36
- AIR CONDITIONINGREAR COOLING UNIT
2761 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION
1. INSPECT BLOWER MOTOR OPERATION
Connect the battery positive (+) lead to terminal 1 and battery
negative (-) lead to terminal 2, then check that the motor rotates
smoothly.
If the motor rotates smoothly, check the wire harness.
Otherwise, replace the blower motor.
2. INSPECT THERMISTOR RESISTANCE
(a) Place the thermistor in cold water.
(b) Measure resistance of the thermistor as the water tem-
perature increases.
(c) Compare the readings with the chart.
If the values meet the specifications, check the wire harness.
Otherwise, replace the thermistor.
3. INSPECT MAGNETIC VALVE OPERATION
Check the air passage through the valve, with and without the
battery positive voltage applied, between terminals as shown
in the chart.
ConditionAir passage
Apply B+ between terminalsFree passage
Not apply B+ between terminalsNo passage
Otherwise replace the magnetic valve with the expansion valve.
If operation is as specified, check the wire harness.
4. INSPECT EVAPORATOR
(a) Check the evaporator fins for blockage.
If the fins are clogged, remove them with compressed air.
NOTICE:
Never use water to clean the evaporator.
(b) Check the fitting for cracks or scratches.
If necessary, repair or replace.
Page 93 of 3115
AC1KG-02
AC-38
- AIR CONDITIONINGREAR COOLING UNIT
2763 Author: Date:
2004 LAND CRUISER (RM1071U)
INSTALLATION
Installation is in the reverse of removal (See page AC-32).
Page 94 of 3115

AC1KA-04
I06684
43
W
I06685
1 2
I06686
- AIR CONDITIONINGREAR COOLING UNIT
AC-29
2754 Author: Date:
2004 LAND CRUISER (RM1071U)
REAR COOLING UNIT
ON-VEHICLE INSPECTION
1. INSPECT EXPANSION VALVE
(a) Check amount of gas during refrigeration cycle.
(b) Set on manifold gauge set.
(c) Start the engine.
(d) Operate the A/C system.
(e) Inspect the expansion valve.
(1) Run the engine at 1,500 rpm for at least 5 minutes.
(2) Check the high pressure reading is 1.37 - 1.57 MPa
(14 - 16 kgf/cm
2, 199 - 288 psi).
(3) Check the low pressure reading.
If the low pressure reading is 0 kPa (0 kgf/cm
2, 0psi), replace
the expansion valve.
2. REMOVE REAR DOOR SCUFF PLATE RH
3. REMOVE REAR FLOOR MAT SUPPORT PLATE
4. REMOVE QUARTER TRIM PANEL RH
5. INSPECT THERMISTOR RESISTANCE
(a) Disconnect the connector.
(b) Measure resistance between terminal 3 and 4.
Standard resistance: Approx. 1.5 kW at 25 °C (77 °F)
If resistance is not as specified, proceed ºINSPECTIONº on
page AC-36.
6. INSPECT MAGNETIC VALVE CONTINUITY
(a) Disconnect the connector.
(b) Check the continuity exists between terminal 1 and 2.
If resistance is not as specified, proceed ºINSPECTIONº on
page AC-36.
7. CHECK FOR LEAKAGE OF REFRIGERANT
(a) Remove the power transistor.
(b) Using a gas leak detector, check for leaks of refrigerant.
If there is a leakage, check the evaporator or tightening torque
at the joints.
Page 95 of 3115
AC1KF-02
- AIR CONDITIONINGREAR COOLING UNIT
AC-37
2762 Author: Date:
2004 LAND CRUISER (RM1071U)
REASSEMBLY
Reassembly is in the reverse of disassembly (See page AC-34).
Page 96 of 3115

AC1KC-05
I06687
I15822
I15823
AC-32
- AIR CONDITIONINGREAR COOLING UNIT
2757 Author: Date:
2004 LAND CRUISER (RM1071U)
REMOVAL
1. DISCHARGE REFRIGERANT FROM REFRIGERATION
SYSTEM
HINT:
At the time of installation, first evacuate air from refrigeration
system.
Then, charge the system with the refrigerant and inspect for
leaks of the refrigerant.
Specified amount: 1,050 ± 50 g (37.04 ± 1.76 oz.)
2. DISCONNECT LIQUID AND SUCTION TUBES
Remove the bolt and slide the plate, then disconnect both
tubes.
Torque: 10 N´m (100 kgf´cm, 7 ft´lbf)
NOTICE:
Cap the open fittings immediately to keep moisture or dirt
out of the system.
HINT:
At the time of installation, lubricate 2 new O-rings with com-
pressor oil and install them to the tubes.
3. REMOVE REAR DOOR SCUFF PLATE RH
4. REMOVE REAR FLOOR MAT SUPPORT PLATE
5. REMOVE ROOF HEADLINING REAR TRIM
6. REMOVE QUARTER TRIM PANEL RH
7. REMOVE ROOF SIDE INNER UPPER GARNISH
(See page BO-97)
8. REMOVE NO. 1 COOLER AIR DUCT
(a) Remove the 3 roof headlining set clips.
(b) Remove the 5 clips and the No. 1 cooler air duct.