Page 97 of 3115
I06700
- AIR CONDITIONINGREAR COOLING UNIT
AC-33
2758 Author: Date:
2004 LAND CRUISER (RM1071U)
9. REMOVE REAR COOLING UNIT
(a) Disconnect the connectors.
(b) Remove the 3 bolts and the rear cooling unit.
Page 98 of 3115
AC3OV-01
I24791
14 (140, 10)
Liquid Tube
Discharge Tube
Discharge Tube
Suction House
10 (100, 7)
22 (225, 16)
14 (140, 10)
Suction Hose
: Specified torque
N´m (kgf´cm, ft´lbf)
32 (330, 24)
10 (100, 7)
10 (100, 7)
10 (100, 7)
10 (100, 7)
32 (330, 24)
14 (140, 10)
32 (330, 24)
14 (140, 10)
- AIR CONDITIONINGREFRIGERANT LINE
AC-21
2746 Author: Date:
2004 LAND CRUISER (RM1071U)
COMPONENTS
Page 99 of 3115
AC1HU-01
AC-20
- AIR CONDITIONINGREFRIGERANT LINE
2745 Author: Date:
2004 LAND CRUISER (RM1071U)
REFRIGERANT LINE
ON-VEHICLE INSPECTION
1. INSPECTION HOSE AND TUBE CONNECTIONS FOR LOOSENESS
2. INSPECT HOSES AND TUBES FOR LEAKAGE
Using a gas leak detector, check for leakage of refrigerant.
Page 100 of 3115

AC1HW-04
AC-22
- AIR CONDITIONINGREFRIGERANT LINE
2747 Author: Date:
2004 LAND CRUISER (RM1071U)
REPLACEMENT
1. DISCHARGE REFRIGERANT FROM REFRIGERATION SYSTEM
2. REPLACE FAULTY TUBE OR HOSE
NOTICE:
Cap the open fittings immediately to keep moisture or dirt out of the system.
3. TIGHTEN JOINT OF BOLT OR NUT TO SPECIFIED TORQUE
NOTICE:
Do not tighten the connections more than specified.
Part tightenedN´mkgf´cmft´lbf
Compressor x Discharge hose101007
Compressor x Suction hose101007
Condenser x Discharge tube5.45548 in.´lbf
Condenser x Liquid tube101007
Liquid line Nut1414010Liquid line Nut
Bolt101007
Discharge line Nut2222516
Suction line Nut (5/8º)3233024Suction line Nut (5/8 )
Nut (3/4º)4242531Nut (3/4 )
Bolt101007
4. EVACUATE AIR FROM REFRIGERATION SYSTEM AND CHARGE SYSTEM WITH REFRIGERANT
Specified amount: 1,050 ± 50 g (37.03 ± 1.76 oz.)
5. INSPECT FOR LEAKAGE OF REFRIGERANT
Using a gas leak detector, check for leaks of refrigerant
If there is leakage, check the tightening torque at the joints.
6. INSPECT AIR CONDITIONING OPERATION
Page 101 of 3115
I25040
Relay BlockJunction Block
(Built-in Relay)
AC3OY-01
I25183
Engine Room J/B
31 29 3 2
- AIR CONDITIONINGREAR HEATER RELAY
AC-95
2820 Author: Date:
2004 LAND CRUISER (RM1071U)
REAR HEATER RELAY
INSPECTION
HINT:
The rear heater relay is built in the engine room junction block.
Since the relay is constructed with a relay block that is in the
junction block as a unit, it is impossible to disconnect the wire
harness connecting with the relay block.
If the relay has a malfunction, replace it with the junction block
assembly wire harness together.
1. REMOVE ENGINE ROOM J/B
2. INSPECT REAR HEATER RELAY CONTINUITY
ConditionTester connectionSpecified condition
Constant29 - 31Continuity
Apply B+ between
terminals 29 and 31.2 - 3Continuity
If continuity is not as specified, replace the engine room J/B.
3. INSTALL ENGINE ROOM J/B
Page 102 of 3115
AC1KN-05
I15824
Cowl Side Trim
Front Door Scuff PlateCenter Pillar Garnish
Rear Door Scuff plate
Console Upper Panel
Lower Center Cluster
Finish Panel
Audio Amplifier
Front Console Box Rear Heater Unit
Rear Console
End Panel
Cooler Bracket Rear Heater Duct
Rear Console Box
- AIR CONDITIONINGREAR HEATER UNIT
AC-45
2770 Author: Date:
2004 LAND CRUISER (RM1071U)
REAR HEATER UNIT
COMPONENTS
Page 103 of 3115
I08487
Power Transistor
Air Inlet Temperature
Sensor
Cover
Fan
Heater Case
Blower Motor Heater Case Heater Radiator O-Ring
Heater Radiator Pipe
Air Mix Servomotor
Non - reusable part
AC-46
- AIR CONDITIONINGREAR HEATER UNIT
2771 Author: Date:
2004 LAND CRUISER (RM1071U)
Page 104 of 3115
AC1KP-03
I06819
I06821
I06681
I06818
I07896
- AIR CONDITIONINGREAR HEATER UNIT
AC-49
2774 Author: Date:
2004 LAND CRUISER (RM1071U)
DISASSEMBLY
1. REMOVE AIR MIX SERVOMOTOR
Remove the 3 screws and the air mix servomotor.
2. REMOVE HEATER RADIATOR
(a) Remove the 3 screws and 2 clamps
(b) Pull out the heater radiator.
(c) Remove the 2 screws, 2 clamps and the heater radiator
pipes.
(d) Remove the 2 O-rings.
HINT:
At the time of reassembly, do not reuse the O-rings
3. REMOVE POWER TRANSISTOR
Remove the 2 screws and the power transistor.
4. REMOVE BLOWER MOTOR
(a) Remove the 3 screws and the cover.
(b) Remove the 4 screws, the 3 holding springs and separate
the heater cases.