Toyota Sequoia (2005). Manual — part 940
I21437
Dual A/C:
Rear Side:
Liquid Tube
Suction Tube
5.4 (55, 48)
N·m (kgf·cm, in.·lbf) : Specified torque
AC–22
–
AIR CONDITIONING
REFRIGERANT LINE
3749
AC1K4–04
–
AIR CONDITIONING
REFRIGERANT LINE
AC–23
3750
REPLACEMENT
1.
DISCHARGE REFRIGERANT FROM REFRIGERATION SYSTEM
2.
REPLACE FAULTY TUBE OR HOSE
NOTICE:
Cap the openings immediately to keep moisture or dirt out of the system.
3.
TIGHTEN JOINT OF BOLT OR NUT TO SPECIFIED TORQUE
NOTICE:
Do not exceed specified torque.
Part tightened
N·m
kgf·cm
ft·lbf
Receiver x Liquid tube
5.4
55
48 in.·lbf
Condenser x Discharge hose
5.4
55
48 in.·lbf
Condenser x Liquid tube
5.4
55
48 in.·lbf
Compressor x Discharge hose
10
100
7
Compressor x Suction hose
10
100
7
Liquid and suction tube (Nut)
5.4
55
48 in.·lbf
Liquid and suction tube x Rear A/C unit
5.4
55
48 in.·lbf
4.
EVACUATE AIR IN REFRIGERATION SYSTEM AND CHARGE SYSTEM WITH REFRIGERANT
Specified amount:
Single A/C: 750
±
50 g (26.45
±
1.76 oz.)
Dual A/C: 1050
±
50 g (37.03
±
1.76 oz.)
5.
INSPECT FOR LEAKAGE OF REFRIGERANT
Using a gas leak detector, check for leakage of refrigerant.
6.
INSPECT AIR CONDITIONING OPERATION
AC3GV–02
I21372
I21373
AC–24
–
AIR CONDITIONING
COOLING UNIT
3751
COOLING UNIT
ON–VEHICLE INSPECTION
1.
INSPECT FOR LEAKAGE OF REFRIGERANT
(a)
Remove the console box assembly.
(b)
Remove the glove compartment door.
(c)
Remove the lower No. 2 finish panel.
(d)
Remove the heater to register duct No. 4.
(e)
Remove the lower LH finish panel.
(f)
Remove the lower cover (See page
).
(g)
Remove the blower controller.
(1)
Disconnect the connector.
(2)
Remove the 2 screws and blower motor linear con-
troller.
(h)
Using a gas leak detector, check for leakage.
If there is leakage, check the tightening torque at the joints or
check the evaporator.
(i)
Install the blower motor linear controller with the 2 screws.
(j)
Install the lower cover.
(k)
Install the lower LH finish panel.
(l)
Install the lower No.2 finish panel.
(m)
Install the glove compartment door (See page
2.
INSPECT EXPANSION VALVE
(a)
Set the manifold gauge set.
(b)
Run the engine.
(c)
Check quantity of gas with the sight glass in refrigeration
cycle.
(1)
Run the engine at 1,500 rpm for at least 5 minutes.
(2)
Then check that the high pressure reading is 1.37
to 1.57 Mpa (14 to 16 kgm/cm
2
, 199 to 228 psi).
(d)
Check the expansion valve.
If the expansion valve is faulty, the low pressure reading will
drop to 0 kPa (0 kgf/cm
2
, 0 psi).
HINT:
When the low pressure reading drops to 0 kPa (0 kgf/cm
2
, 0
psi), there is no difference in temperature between the IN and
OUT sides of the receiver.
3.
INSPECT THERMISTOR RESISTANCE
(a)
Disconnect the connector.
(b)
Measure the resistance between terminals.
Standard resistance: 1,500
Ω
at 25
°
C (77
°
F)
If resistance is not as specified, replace the thermistor.
AC3GW–02
I21420
Lower LH
Finish Panel
Lower Cover
O–Ring
Suction
Tube
Liquid Tube
O–Ring
Clamp
Cooling Unit
Heater to Register
Duct No. 4
Cowl Side Trim RH
Front Door Scuff Plate RH
Lower No. 2
Finish Panel
Glove Compartment Door
Upper Unit Case
Evaporator
Thermistor
Lower Unit Case
Packing
O–Ring
Grommet
Drain Hose
Packing
Blower Controller
N·m (kgf·cm, in.·lbf) : Specified torque
Non–reusable part
3.5 (36, 31)
Liquid and Suction Tube
Expansion
Valve
Clamp
Grommet
Insulator
Front
Console
Box
Console
Upper
Panel
Rear
Console
Box
–
AIR CONDITIONING
COOLING UNIT
AC–25
3752
COMPONENTS
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