TOYOTA AVALON 2001 Service Owner's Guide

I06919
Disconnect the tube
using hand
Screw
Driver
Tube
I12290
I12291Hose Clip
Second Ridge
Water Hose
Heater Radiator
PipeUpper
Lower LHRH
LHRH45 ± 10°
I12292
- AIR CONDITIONINGAIR CONDITIONING UNIT
AC-29
1951 Author
: Date
:
2001 AVALON (RM808U)
NOTICE:

Do not use tools like screwdriver to remove the tube.

Cap the open fittings immediately to keep moisture or
dirt out of the system.
4. REMOVE INSTRUMENT PANEL AND REINFORCE-
MENT (See page BO-90)
5. DISCONNECT WATER HOSES FROM HEATER RA-
DIATOR PIPES
(a) Using pliers, grip the claw of the hose clip and slide the
hose clip along the hose.
(b) Disconnect the water hoses.
HINT:
At the time of installation, please refer to the following item.
Push the water hose onto the heater radiator pipe as far as se-
cond ridge on the pipe and install the hose clip.
6. REMOVE BLOWER UNIT (See page AC-37)
7. REMOVE A/C UNIT
(a) Remove the duct.
(b) Disconnect the connectors.
(c) Remove the 2 nuts and A/C unit.

I12301
AC2GB-01
I12302
- AIR CONDITIONINGAIR MIX SERVOMOTOR (Auto A/C)
AC-59
1981 Author
: Date
:
2001 AVALON (RM808U)
AIR MIX SERVOMOTOR (Auto A/C)
INSPECTION
1. Drive side:
REMOVE AIR MIX SERVOMOTOR
(a) Remove the lower No. 1 panel.
(b) Remove the lower LH panel insert.
(c) Disconnect the connector.
(d) Remove the 3 screws and the servomotor.
2. INSPECT AIR MIX DAMPER POSITION SENSOR CIR-
CUIT (See page DI-796)
3. INSPECT AIR MIX CONTROL SERVOMOTOR CIRCUIT
(See page DI-799)
4. Passenger side:
REMOVE AIR MIX SERVOMOTOR
(a) Remove the blower unit (See page AC-37).
(b) Disconnect the connector.
(c) Remove the 3 screws and the servomotor.
5. INSPECT AIR MIX DAMPER POSITION SENSOR CIR-
CUIT (See page DI-787)
6. INSPECT AIR MIX CONTROL SERVOMOTOR CIRCUIT
(See page DI-799)
7. Driver side:
INSTALL AIR MIX SERVOMOTOR
(a) Install the servomotor with the 3 screws.
(b) Connect the connector.
(c) Install the lower LH panel insert.
(d) Install the lower No. 1 panel.
8. Passenger side:
INSTALL AIR MIX SERVOMOTOR
(a) Install the servomotor with the 3 screws.
(b) Connect the connector.
(c) Install the blower unit (See page AC-37).

AC2GC-01
I12303
AC-60
- AIR CONDITIONINGAIR OUTLET SERVOMOTOR
1982 Author
: Date
:
2001 AVALON (RM808U)
AIR OUTLET SERVOMOTOR
INSPECTION
1. REMOVE AIR OUTLET SERVOMOTOR
(a) Remove the instrument panel (See page BO-90).
(b) Disconnect the connector.
(c) Remove the 3 screws and servomotor.
2. INSPECT AIR OUTLET DAMPER POSITION SENSOR
CIRCUIT (See page DI-793)
3. INSPECT AIR OUTLET DAMPER CONTROL SERVO-
MOTOR CIRCUIT (See page DI-808)
4. INSTALL AIR OUTLET SERVOMOTOR
(a) Install the 3 screws with the 3 screws.
(b) Connect the connector.
(c) Install the instrument panel (See page BO-97).

AC2GS-01
I12986
- AIR CONDITIONINGAIR REFINER FILTER
AC-89
2011 Author
: Date
:
2001 AVALON (RM808U)
AIR REFINER FILTER
REPLACEMENT
1. REMOVE GLOVE COMPARTMENT PARTS
(See page BO-90)
2. REMOVE AIR REFINER FILTER
(a) Remove the filter cover.
(b) Pull out the filter.
(c) Remove the filter from the frame.
3. INSTALL AIR REFINER FILTER
(a) Install the filter to the frame.
(b) Install the filter.
(c) Install the filter cover.
4. INSTALL GLOVE COMPARTMENT PARTS
(See page BO-97)

I12306
AC2GF-01
- AIR CONDITIONINGAMBIENT TEMPERATURE SENSOR
AC-63
1985 Author
: Date
:
2001 AVALON (RM808U)
AMBIENT TEMPERATURE
SENSOR
INSPECTION
1. REMOVE AMBIENT TEMPERATURE SENSOR
(a) Disconnect the connector.
(b) Remove the sensor.
2. INSPECT AMBIENT TEMPERATURE SENSOR CIR-
CUIT (See page DI-766)
3. INSTALL AMBIENT TEMPERATURE SENSOR
(a) Install the sensor.
(b) Connect the connector.

AC2G8-01
I12927
N16762
21 AC-56
- AIR CONDITIONINGBLOWER MOTOR
1978 Author
: Date
:
2001 AVALON (RM808U)
BLOWER MOTOR
INSPECTION
1. REMOVE GLOVE COMPARTMENT PARTS
(See page BO-90)
2. REMOVE BLOWER MOTOR
(a) Disconnect the connector.
(b) Remove the 3 screws and blower motor.
3. INSPECT BLOWER MOTOR OPERATION
Connect the positive (+) lead from the battery to terminal 2 and
negative (-) lead to terminal 1, then check that the motor opera-
tions smoothly.
If operation is not as specified, replace the blower motor.
4. INSTALL BLOWER MOTOR
(a) Install the blower motor with the 3 screws.
(b) Connect the connector.
5. INSTALL GLOVE COMPARTMENT PARTS
(See page BO-97)

AC2G9-01
I12966
I12963
1
23 4
- AIR CONDITIONINGBLOWER RESISTOR (Manual A/C)
AC-57
1979 Author
: Date
:
2001 AVALON (RM808U)
BLOWER RESISTOR (Manual A/C)
INSPECTION
1. REMOVE GLOVE COMPARTMENT PARTS
(See page BO-90)
2. REMOVE BLOWER RESISTOR
(a) Disconnect the connector.
(b) Remove the 2 screws and blower resistor.
3. INSPECT BLOWER RESISTOR RESISTANCE
Measure resistance between terminals, as shown in the chart
below.
Tester connectionConditionSpecified condition
1 - 3ConstantApprox. 0.42 W
1 - 4ConstantApprox. 1.42 W
2 - 4ConstantApprox. 2.24 W
If resistance is not as specified, replace the blower resistor.
4. INSTALL BLOWER RESISTOR
(a) Install the blower resistor with the 2 screws.
(b) Connect the connector.
5. INSTALL GLOVE COMPARTMENT PARTS
(See page BO-97)

AC2G1-01
I12959
Instrument Panel
Blower Unit
Security ECU
ECM
VSC Translate ECU
Junction Connector
- AIR CONDITIONINGBLOWER UNIT
AC-35
1957 Author
: Date
:
2001 AVALON (RM808U)
BLOWER UNIT
COMPONENTS

I12954
Auto A/C models:
Air Refiner FilterBlower Unit Case
Air Inlet Servomotor
Blower Motor
Wire Harness
Auto A/C:
Blower Motor
Linear ControllerManual A/C:
Blower Resister AC-36
- AIR CONDITIONINGBLOWER UNIT
1958 Author
: Date
:
2001 AVALON (RM808U)

AC2G2-01
I12927
I12985
AC-38
- AIR CONDITIONINGBLOWER UNIT
1960 Author
: Date
:
2001 AVALON (RM808U)
DISASSEMBLY
1. REMOVE AIR REFINER FILTER
(a) Release the 2 claws and remove the cover.
(b) Pull out the air refiner filter.
(c) Remove the filter from filter case.
2. REMOVE BLOWER MOTOR
Remove the 3 screws and motor.
3. REMOVE AIR INLET SERVOMOTOR
Remove the 3 screws and servomotor.