TOYOTA AVALON 2001 Service Manual Online
AVALON 2001
TOYOTA
TOYOTA
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TOYOTA AVALON 2001 Service Manual Online
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Page 81 of 1897
I12940
1
23 4
AC100-03
Z13470
Magnetic clutch control
Low pressure side
ON (Continuity)
196 kpa
(2.0 kgf/cm
2, 28 psi)
OFF (No Continuity)High pressure side
3,140 kpa
(32.0 kgf/cm2, 455 psi)
OFF (No Continuity)
Z13471
Cooling fan control
ON1,520 kpa
(15.5 kgf/cm
2, 220 psi)
(No Continuity) (Continuity)
OFF
1,226 kpa
(12.5 kgf/cm
2, 178 psi)
- AIR CONDITIONINGPRESSURE SWITCH
AC-65
1987 Author: Date:
2001 AVALON (RM808U)
PRESSURE SWITCH
ON-VEHICLE INSPECTION
1. SET ON MANIFOLD GAUGE SET (See page AC-20)
2. DISCONNECT CONNECTOR FROM PRESSURE
SWITCH
3. RUN ENGINE AT APPROX. 1,500 RPM
4. Magnetic clutch control:
INSPECT PRESSURE SWITCH OPERATION
(a) Connect the positive (+) lead from the ohmmeter to termi-
nal 4 and the negative (-) lead to terminal 1.
(b) Check continuity between terminals when refrigerant
pressure is changed, as shown in the illustration.
If operation is not as specified, replace the pressure switch.
5. Cooling fan control:
INSPECT PRESSURE SWITCH OPERATION
(a) Connect the positive (+) lead from the ohmmeter to termi-
nal 2 and the negative (-) lead to terminal 3.
(b) Check continuity between terminals when refrigerant
pressure is changed, as shown in the illustration.
If operation is not as specified, replace the pressure switch.
6. STOP ENGINE AND SET OFF MANIFOLD GAUGE SET
7. CONNECT CONNECTOR TO PRESSURE SWITCH
Page 82 of 1897
AC101-03
I12941
AC-66
- AIR CONDITIONINGPRESSURE SWITCH
1988 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. REMOVE PRESSURE SWITCH FROM LIQUID TUBE
Disconnect the connector and remove the pressure switch.
Torque: 10 N´m (100 kgf´cm, 7 ft´lbf)
HINT:
Lock the switch mounted on the tube with an open end
wrench, being careful not to deform the tube and remove
the switch.
At the time of installation, please refer to the following
item.
Lubricate a new O-ring with the compressor oil and install
them to the switch.
Page 83 of 1897
AC102-02
- AIR CONDITIONINGPRESSURE SWITCH
AC-67
1989 Author: Date:
2001 AVALON (RM808U)
INSTALLATION
Installation is in the reverse order of removal (See page AC-66).
Page 84 of 1897
I12940
1
23 4
AC100-03
Z13470
Magnetic clutch control
Low pressure side
ON (Continuity)
196 kpa
(2.0 kgf/cm
2, 28 psi)
OFF (No Continuity)High pressure side
3,140 kpa
(32.0 kgf/cm2, 455 psi)
OFF (No Continuity)
Z13471
Cooling fan control
ON1,520 kpa
(15.5 kgf/cm
2, 220 psi)
(No Continuity) (Continuity)
OFF
1,226 kpa
(12.5 kgf/cm
2, 178 psi)
- AIR CONDITIONINGPRESSURE SWITCH
AC-65
1987 Author: Date:
2001 AVALON (RM808U)
PRESSURE SWITCH
ON-VEHICLE INSPECTION
1. SET ON MANIFOLD GAUGE SET (See page AC-20)
2. DISCONNECT CONNECTOR FROM PRESSURE
SWITCH
3. RUN ENGINE AT APPROX. 1,500 RPM
4. Magnetic clutch control:
INSPECT PRESSURE SWITCH OPERATION
(a) Connect the positive (+) lead from the ohmmeter to termi-
nal 4 and the negative (-) lead to terminal 1.
(b) Check continuity between terminals when refrigerant
pressure is changed, as shown in the illustration.
If operation is not as specified, replace the pressure switch.
5. Cooling fan control:
INSPECT PRESSURE SWITCH OPERATION
(a) Connect the positive (+) lead from the ohmmeter to termi-
nal 2 and the negative (-) lead to terminal 3.
(b) Check continuity between terminals when refrigerant
pressure is changed, as shown in the illustration.
If operation is not as specified, replace the pressure switch.
6. STOP ENGINE AND SET OFF MANIFOLD GAUGE SET
7. CONNECT CONNECTOR TO PRESSURE SWITCH
Page 85 of 1897
AC101-03
I12941
AC-66
- AIR CONDITIONINGPRESSURE SWITCH
1988 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. REMOVE PRESSURE SWITCH FROM LIQUID TUBE
Disconnect the connector and remove the pressure switch.
Torque: 10 N´m (100 kgf´cm, 7 ft´lbf)
HINT:
Lock the switch mounted on the tube with an open end
wrench, being careful not to deform the tube and remove
the switch.
At the time of installation, please refer to the following
item.
Lubricate a new O-ring with the compressor oil and install
them to the switch.
Page 86 of 1897
AC0YL-02
I12948
Liquid Tube
Suction Hose
Discharge Hose
10 (100, 7)
10 (100, 7)
5.4 (55, 48 in.´lbf)
5.4 (55, 48 in.´lbf)
N´m (kgf´cm, ft´lbf) : Specified torque
- AIR CONDITIONINGREFRIGERANT LINE
AC-23
1945 Author: Date:
2001 AVALON (RM808U)
LOCATION
Page 87 of 1897
AC0YK-01
AC-22
- AIR CONDITIONINGREFRIGERANT LINE
1944 Author: Date:
2001 AVALON (RM808U)
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 88 of 1897
AC0YM-02
AC-24
- AIR CONDITIONINGREFRIGERANT LINE
1946 Author: Date:
2001 AVALON (RM808U)
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:
Connections should not be torqued tighter than the specified torqued.
Part tightenedN´mkgf´cmft´lbf
Condenser x Discharge hose5.45548 in.´lbf
Condenser x Liquid tube5.45548 in.´lbf
Compressor x Discharge hose101007
Compressor x Suction hose101007
Expansion valve x Evaporator5.45548 in.´lbf
Suction line (Block joint)101007
Liquid line (Block joint)101007
4. EVACUATE AIR IN REFRIGERATION SYSTEM AND CHARGE SYSTEM WITH REFRIGERANT
Specified amount: 600 ± 50g (21.16 ± 1.76 oz.)
5. INSPECT FOR LEAKAGE OF REFRIGERANT
Using a gas leak detector, check for leakage of refrigerant.
6. INSPECT A/C OPERATION
Page 89 of 1897
AC2GE-01
I12305
AC-62
- AIR CONDITIONINGROOM TEMPERATURE SENSOR
1984 Author: Date:
2001 AVALON (RM808U)
ROOM TEMPERATURE SENSOR
INSPECTION
1. REMOVE ROOM TEMPERATURE SENSOR
(a) Remove the lower No. 1 panel (See page BO-90).
(b) Disconnect the connector.
(c) Remove the sensor from the aspirator hose.
2. INSPECT ROOM TEMPERATURE SENSOR CIRCUIT
(See page DI-763)
3. INSTALL ROOM TEMPERATURE SENSOR
(a) Install the sensor to the aspirator hose.
(b) Connect the connector.
(c) Install the lower No. 1 panel (See page BO-97).
Page 90 of 1897
I12304
AC2GD-01
- AIR CONDITIONINGSOLAR SENSOR
AC-61
1983 Author: Date:
2001 AVALON (RM808U)
SOLAR SENSOR
INSPECTION
1. REMOVE SOLAR SENSOR
Using a screwdriver, pull out the sensor, then disconnect
the connector.
HINT:
Tape the screwdriver tip before use.
2. INSPECT SOLAR SENSOR CIRCUIT
(See page DI-784, DI-775)
3. INSTALL SOLAR SENSOR
Install the solar sensor, then connect the connector.
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