TOYOTA AVALON 2001 Service Owner's Manual

AC-2
- AIR CONDITIONINGAIR CONDITIONING SYSTEM
1924 Author
: Date
:
2001 AVALON (RM808U)
9. SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
The AVALON is equipped with an SRS (Supplemental Restraint
System) such as the driver and front passenger airbag. Failure
to carry out service operation in the correct sequence could
cause the SRS to unexpectedly deploy during servicing, possi-
bly leading to a serious accident. Before servicing ( including re-
moval or installation of parts, inspection or replacement), be
sure to read the precautionary notices in the RS section.

AC2FY-01
I12951
N´m (kgf´cm, ft´lbf): Specified torque

Non-reusable part
Instrument Panel
Reinforcement
Brace
A/C Unit
Rear Heater Duct
Piping Clamp

O-RingSuction Tube
Liquid Tube
Piping Clamp
Blower Unit
No. 3 Heater to Register Duct
DuctBrace

O-Ring
AC-26
- AIR CONDITIONINGAIR CONDITIONING UNIT
1948 Author
: Date
:
2001 AVALON (RM808U)
COMPONENTS

I12952
Air DuctHeater Radiator
Unit Case LH
Evaporator
Unit Case RHExpansion Valve
Liquid and
Suction Tube
Air Outlet Servomotor
Air Vent Duct
Auto A/C:
Aspirator HoseDrain Hose
Evaporator Temp.
Sensor
5.4 (55, 48 in.´lbf)
N´m (kgf´cm, ft´lbf) : Specified torque

Non-reusable part
x 10

O-Rings
AspiratorAuto A/C:
Air Mix Servomotor
(Passenger side)

O-Rings
Auto A/C
Air Mix Servomotor
(Driver side)
Air Duct
Plate
- AIR CONDITIONINGAIR CONDITIONING UNIT
AC-27
1949 Author
: Date
:
2001 AVALON (RM808U)

AC2HX-01
I14049
I14050
AC-30
- AIR CONDITIONINGAIR CONDITIONING UNIT
1952 Author
: Date
:
2001 AVALON (RM808U)
DISASSEMBLY
1. REMOVE AIR VENT DUCT
2. REMOVE EVAPORATOR TEMP. SENSOR
Pull out the sensor.
3. REMOVE EXPANSION VALVE
Using a hexagon wrench, remove the 2 bolts and separate the
evaporator, expansion valve, liquid and suction tube.
Torque: 5.4 N´m (55 kgf´cm, 48 in.´lbf)
HINT:
At the time of reassembly, please refer to the following item.
Lubricate 4 new O-rings with compressor oil and install them
to the valve.
4. Auto A/C only:
REMOVE BLOWER MOTOR LINEAR CONTROLLER
Remove the 2 screws and controller.
5. REMOVE BLOWER RESISTOR
Remove the 2 screws and blower resistor.
6. Auto A/C only:
REMOVE AIR MIX SERVOMOTOR (Driver side)
Remove the 3 screws and servomotor.
7. Auto A/C only:
REMOVE AIR MIX SERVOMOTOR (Passenger side)
Remove the 3 screws and servomotor.
8. REMOVE AIR OUTLET SERVOMOTOR
Remove the 3 screws and servomotor.
9. REMOVE ASPIRATOR
Remove the screw and aspirator.
10. REMOVE HEATER RADIATOR
(a) Remove the air duct.
(b) Remove the 2 screws and 2 clamps.
(c) Pull out the heater radiator.

- AIR CONDITIONINGAIR CONDITIONING UNIT
AC-31
1953 Author
: Date
:
2001 AVALON (RM808U)
11. REMOVE EVAPORATOR
(a) Remove the 10 screws and separate the A/C unit case.
(b) Pull out the evaporator.
HINT:
At the time of reassembly, please refer to the following item.
If evaporator is replaced, add compressor oil to evaporator.
Add 40 cc (1.4 fl.oz.)
Compressor oil: ND-OIL 8 or equivalent

AC2G0-01
I03338
Sensor
Ice
10 cm
(0.39 in.)
ThermistorOhmmeter
Z04352
(W)
0 500 1,000 1,500 2,000
2,500
3,000 3,500 4,000 4,500 5,000
0510152025(°C)
32 41 50 59 68 77 (°F)
AC-32
- AIR CONDITIONINGAIR CONDITIONING UNIT
1954 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION
1. CHECK EVAPORATOR FINS FOR BLOCKAGE
If the fins are clogged, clean them with compressed air.
NOTICE:
Never use water to clean the evaporator.
2. CHECK FITTINGS FOR CRACKS OR SCRATCHES
Repair as necessary.
3. INSPECT EVAPORATOR TEMPERATURE SENSOR
(a) Place the sensor in cold water, and while changing the
temperature of water, measure resistance at the connec-
tor and at the same time, measure temperature of water
with a thermometer.
(b) Compare the 2 readings on the chart.
If resistance is not as specified, replace the thermistor.

AC0YR-02
AC-34
- AIR CONDITIONINGAIR CONDITIONING UNIT
1956 Author
: Date
:
2001 AVALON (RM808U)
INSTALLATION
Installation is in the reverse order of removal (See page AC-28).

AC2FX-01
- AIR CONDITIONINGAIR CONDITIONING UNIT
AC-25
1947 Author
: Date
:
2001 AVALON (RM808U)
AIR CONDITIONING UNIT
ON-VEHICLE INSPECTION
INSPECT FOR LEAKAGE OF REFRIGERANT
(a) Remove the glove compartment door (See page BO-90).
(b) Remove the blower resister.
(c) Using a gas leak detector, check for leakage of refrigerant.
If there is leakage, check the tightening torque at the joints or check the evaporator.

AC2HI-01
- AIR CONDITIONINGAIR CONDITIONING UNIT
AC-33
1955 Author
: Date
:
2001 AVALON (RM808U)
REASSEMBLY
Reassembly is in the reverse order of disassembly (See page AC-30).

AC2KB-01
I12289
I03838
SST
I03839
SST
Push
SSTPull
Release
Lever AC-28
- AIR CONDITIONINGAIR CONDITIONING UNIT
1950 Author
: Date
:
2001 AVALON (RM808U)
REMOVAL
1. DISCHARGE REFRIGERANT FROM REFRIGERATION
SYSTEM
HINT:
At the time of installation, please refer to the following item.
Evacuate air from refrigeration system.
Charge system with refrigerant and inspect for leakage of refrig-
erant.
Specified amount: 600 ± 50 g (21.16 ± 1.76 oz.)
2. DRAIN ENGINE COOLANT FROM RADIATOR
HINT:
It is not necessary to drain out all coolant.
3. DISCONNECT LIQUID AND SUCTION TUBES
(a) Using SST, remove the 2 piping clamps.
SST 09870-00015 (Suction tube)
09870-00025 (Liquid tube)
(1) Insert SST to piping clamp.
HINT:
Confirm the direction of the piping clamp claw and SST using
the illustration showing on the caution label.
(2) Push down SST and release the clamp lock.
NOTICE:
Be careful not to deform the tubes, when pushing SST.
(3) Pull SST slightly and push the release lever, then re-
move the piping clamp with SST.
(4) Remove the piping clamp from SST.
(b) Disconnect the both tubes.