Page 3777 of 4323
AC3HA±02
I21386
I21385
I21393
I21389
AC±42
± AIR CONDITIONINGREAR A/C UNIT
3769 Author: Date:
2005 SEQUOIA (RM1146U)
DISASSEMBLY
1. REMOVE BLOWER MOTOR
2. REMOVE POWER TRANSISTOR
3. REMOVE THERMISTOR
4. REMOVE WATER VALVE
(a) Remove the packing.
(b) Remove the 3 screws and 2 brackets.
(c) Grip the claws of the hose clips and slide the hose clips
along the hoses.
(d) Disconnect the water hoses and pipes.
(e) Remove the 2 screws and 2 clamps.
(f) Remove the 3 screws and water valve.
5. REMOVE DRAIN HOSE
6. REMOVE EXPANSION VALVE
(a) Remove the 4 screws and 2 brackets.
(b) Pry out the packing.
HINT:
At the time of installation, refer to the following:
Do not refuse the packing.
(c) Using a hexagon wrench (5.0mm (0.20 in.)), remove the
2 bolts and expansion valve.
Torque: 5.4 N´m (55 kgf´cm, 48 in.´lbf)
Page 3778 of 4323
I21387
Nut A:
Nut B:
I21392
I21391
± AIR CONDITIONINGREAR A/C UNIT
AC±43
3770 Author: Date:
2005 SEQUOIA (RM1146U)
NOTICE:
Cap the openings immediately to keep moisture or dirt out
of the system.
HINT:
At the time of installation, refer to the following:
Lubricate 2 new O±rings with compressor oil and install them
to the tube and valve.
(d) Remove the holder and disconnect the heat sensing
tube.
(e) Loosen the 2 nuts and remove the expansion valve.
Torque:
Nut A: 13 N´m (135 kgf´cm, 10 ft´lbf)
Nut B: 22 N´m (235 kgf´cm, 16 ft´lbf)
HINT:
At the time of installation, refer to the following:
Lubricate 2 new O±rings with compressor oil and install them
to the expansion valve.
7. REMOVE EVAPORATOR
(a) Remove the 8 screws and cover.
(b) Pull out the evaporator.
8. REMOVE AIR OUTLET SERVOMOTOR
(a) Using a screwdriver, release the claw and remove the
plate.
HINT:
Tape the screwdriver tip before use.
(b) Remove the 3 screws and servomotor.
Page 3779 of 4323
I21390
X10 AC±44
± AIR CONDITIONINGREAR A/C UNIT
3771 Author: Date:
2005 SEQUOIA (RM1146U)
9. SEPARATE REAR A/C UNIT
(a) Remove the 2 screws, clamp and blower case.
(b) Remove the 10 screws and separate the A/C unit.
(c) Remove the sliding door and shaft.
(d) Remove the heater radiator and insulator.
Page 3780 of 4323
AC3HB±02
I22634
FACE 1
FACE 2
B/L 1
B/L 2
FOOT
1
2 3 4 5
7
8
± AIR CONDITIONINGREAR A/C UNIT
AC±45
3772 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. INSPECT EVAPORATOR
(a) Check evaporator fins for blockage.
If the fins are clogged, clean them with compressed air.
NOTICE:
Never use water to clean the evaporator.
(b) Check fitting for cracks or scratches.
If necessary, repair or replace.
2. INSPECT HEATER RADIATOR
Inspect fins for blockage.
If the fins are clogged, clean them with compressed air.
3. INSPECT WATER VALVE SERVOMOTOR CIRCUIT
(See page DI±2361)
4. INSPECT AIR OUTLET SERVOMOTOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
7 and the negative (±) lead to terminal 8.
(b) Connect the negative (±) lead from the battery to each ter-
minal and check that the shaft rotates at each position, as
shown in the illustration.
Connected terminalPosition
1FOOT
2B/L 2
3B/L 1
4FACE 2
5FACE 1
Page 3781 of 4323
I21390
X10
AC3HC±02
I21395
Marking A
B
I21396Marking B AC±46
± AIR CONDITIONINGREAR A/C UNIT
3773 Author: Date:
2005 SEQUOIA (RM1146U)
REASSEMBLY
1. ASSEMBLE REAR A/C UNIT
(a) Install the insulator and heater radiator.
(b) Install the shaft and sliding door.
(c) Assemble the A/C unit and install the 10 screws.
(d) Install the blower case, clamp and 2 screws.
2. INSTALL AIR OUTLET SERVOMOTOR
(a) Align marking A on the grid part of the case with the side
of sliding door rack B.
(b) Install the servomotor with the 3 screws.
HINT:
The projection on the gear (marking B) shall be positioned verti-
cally.
3. INSTALL EVAPORATOR
4. INSTALL EXPANSION VALVE
5. INSTALL WATER VALVE
6. INSTALL THERMISTOR
7. INSTALL POWER TRANSISTOR
8. INSTALL BLOWER MOTOR
Page 3782 of 4323
AC3HD±01
± AIR CONDITIONINGREAR A/C UNIT
AC±47
3774 Author: Date:
2005 SEQUOIA (RM1146U)
INSTALLATION
Installation is in the reverse order of removal (See page AC±40).
Page 3783 of 4323
AC1KT±05
I21425
Lower LH
Finish Panel
Cooling Unit
Blower Unit
Air Inlet Servomotor
Blower Motor
Heater to Register
Duct No. 4
Front Door Scuff Plate RH
Blower Unit Case
Lower Cover
Lower No. 2
Finish Panel
Glove Compartment Door
Cowl Side
Trim RH
Front
Console
Box
Console
Upper Panel
Rear
Console Box AC±48
± AIR CONDITIONINGBLOWER UNIT
3775 Author: Date:
2005 SEQUOIA (RM1146U)
BLOWER UNIT
COMPONENTS
Page 3784 of 4323
AC1KU±06
I21448
± AIR CONDITIONINGBLOWER UNIT
AC±49
3776 Author: Date:
2005 SEQUOIA (RM1146U)
REMOVAL
1. REMOVE CONSOLE UPPER PANEL
2. REMOVE REAR CONSOLE BOX
3. REMOVE FRONT CONSOLE BOX
4. REMOVE LOWER LH FINISH PANEL
5. REMOVE GLOVE COMPARTMENT DOOR
6. REMOVE LOWER NO. 2 FINISH PANEL
7. REMOVE LOWER COVER
8. REMOVE COOLING UNIT (See page AC±26)
9. REMOVE BLOWER UNIT
(a) Disconnect the connector from the blower motor.
(b) Disconnect the connector from the air inlet servomotor.
(c) Remove the nut, bolt and blower unit.