engine TOYOTA AVALON 2001 Service User Guide
Page 53 of 1897
AC1N1-02
I12935
P19978
N20259
AC-44
- AIR CONDITIONINGCOMPRESSOR AND MAGNETIC CLUTCH
1966 Author: Date:
2001 AVALON (RM808U)
REMOVAL
1. RUN ENGINE AT IDLE SPEED WITH A/C ON FOR
APPROX. 10 MINUTES
2. STOP ENGINE
3. DISCONNECT NEGATIVE (- ) TERMINAL CABLE
FROM BATTERY
4. DISCHARGE REFRIGERANT FROM REFRIGERATION
SYSTEM
5. REMOVE DRIVE BELT
(See page AC-18)
6. DISCONNECT DISCHARGE AND SUCTION HOSES
Remove the 2 nuts and disconnect the both hoses.
NOTICE:
Cap the open fittings immediately to keep moisture or dirt
out of the system.
7. REMOVE GENERATOR
(a) Disconnect the generator connector.
(b) Remove the nut, and disconnect the generator wire.
(c) Disconnect the wire harness from the clamp.
(d) Remove the pivot bolt, adjusting lock bolt and generator.
8. REMOVE COMPRESSOR
(a) Disconnect the connector.
(b) Disconnect the wire harness clamp.
(c) Remove the 2 bolts, nut and drive belt adjusting bar
bracket.
Page 59 of 1897
AC2G6-01
I12299
I12300
- AIR CONDITIONINGCONDENSER
AC-53
1975 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 RADIATOR AND CONDENSER FANS
(See page AC-46)
3. REMOVE 2 RADIATOR UPPER SUPPORTS
4. DISCONNECT DISCHARGE HOSE AND LIQUID TUBE
Remove the 2 bolts and disconnect the hose and tube.
Torque: 10 N´m (100 kgf´cm, 7 ft´lbf)
NOTICE:
Cap the open fittings immediately to keep moisture or dirt
out of the system.
HINT:
At the time of installation, please refer to the following item.
Lubricate 2 new O-rings with compressor oil and install them
to the hose.
5. REMOVE CONDENSER
(a) Remove the 2 condenser set bolts.
(b) Push the radiator toward the engine.
(c) Push the condenser toward the radiator and pull it up-
ward.
HINT:
At the time of installation, please refer to the following item.
If condenser is replaced, add compressor oil to the condenser.
Add 40 cc (1.4 fl.oz.)
Compressor oil: ND-OIL 8 or equivalent
Page 62 of 1897
AC104-03
I12942
1 2
- AIR CONDITIONINGCONDENSER FAN
AC-71
1993 Author: Date:
2001 AVALON (RM808U)
CONDENSER FAN
ON-VEHICLE INSPECTION
1. INSPECT CONDENSER FAN OPERATION
Inspect the fan operation at these conditions, as shown in the
chart.
Test conditions:
Start engine
Blower speed control switch position ºHIº
Temperature control dial at ºCOOLº position
Set on manifold gauge set
A/C switch ON
ConditionFan operation (Fan speed)
Engine coolant temperature
88 °C (190 °F) or belowRotate (Low speed)
Engine coolant temperature
98 °C (208 °F) or aboveRotate (High speed)
Refrigerant pressure is less than
1,520 kPa (15.5 kgf/cm2, 220 psi)Rotate (Low speed)
Refrigerant pressure is 1,520 kPa
(15.5 kgf/cm2, 220 psi) or aboveRotate (High speed)
If operation is not as specified, proceed to the next inspection.
2. INSPECT CONDENSER FAN MOTOR OPERATION
(a) Disconnect the fan connector.
(b) Connect battery and ammeter.
(c) Check that the fan rotates smoothly, and then check the
reading on the ammeter.
Specified amperage: 9.2 - 11.0 A at 20 °C (68 °F)
If operation is not as specified, replace the fan motor.
If operation is as specified, check the pressure switch, cooling
fan relays and water temp. switch.
Page 64 of 1897
CH0086
Wrong Correct
AC0YF-03
I14032
Generator
Crankshaft PulleyCompressor
N01881
DENSOBorroughs
- AIR CONDITIONINGDRIVE BELT
AC-17
1939 Author: Date:
2001 AVALON (RM808U)
DRIVE BELT
ON-VEHICLE INSPECTION
1. INSPECT DRIVE BELT'S INSTALLATION CONDITION
Check that the drive belt fits properly in the ribbed grooves.
2. INSPECT DRIVE BELT TENSION
Using a belt tension gauge, check the drive belt tension.
Drive belt tension:
New belt: 165 ± 22 lbf
Used belt: 88 ± 22 lbf
HINT:
ºNew beltº refers to a belt which has been used less than
5 minutes on the running engine.
ºUsed beltº refer to a belt which has been on a running en-
gine for 5 minutes or more.
After installing the drive belt, check that it fits properly in
the ribbed grooves.
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 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 91 of 1897
AC2FV-01
- AIR CONDITIONINGTROUBLESHOOTING (Manual A/C)
AC-15
1937 Author: Date:
2001 AVALON (RM808U)
TROUBLESHOOTING (Manual A/C)
PROBLEM SYMPTOMS TABLE
Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely
cause of the problem. Check each part in order If necessary , replace these parts.
SymptomSuspect AreaSee page
No blower operation
2. HTR Fuse
3. Heater main relay
4. Blower motor
5. Blower resistor
6. Blower speed control switch
7. Wire harness-
AC-68
AC-56
AC-57
AC-83
-
No blower control
1. Blower motor
2. Blower resistor
3. Blower speed control switch
4. Wire harnessAC-56
AC-57
AC-83
-
No air temperature control1. Engine coolant volume
2. Heater control assembly-
AC-80
No compressor operation
1. Refrigerant volume
2. A.C Fuse
3. Magnetic clutch
4. Compressor lock sensor
5. Compressor
6. Pressure switch
7. Heater main relay
8. Blower speed control switch
9. A/C switch
10.A/C amplifier
11. Evaporator temp. sensor
12.Wire harnessAC-3
-
AC-42
AC-42
AC-42
AC-65
AC-68
AC-83
AC-83
AC-77
AC-64
-
No cool air comes out
1. Refrigerant volume
2. Refrigerant pressure
3. Drive belt
4. Magnetic clutch
5. Compressor lock sensor
6. Pressure switch
7. Evaporator temp. sensor
8. A/C switch
9. A/C amplifier
10.Heater control assembly
11. Wire harnessAC-3
AC-3
AC-17
AC-42
AC-42
AC-65
AC-64
AC-83
AC-77
AC-80
-
No engine idle-up when A/C switch ON
1. A/C amplifier
2. Idle control system
3. Wire harnessAC-77
DI-102
-
No air inlet control
1. Air inlet servomotor
2. Heater control assembly
3. Wire harnessAC-39
AC-80
-
No mode control
1. Air outlet servomotor
2. Heater control assembly
3. Wire harnessAC-60
AC-80
-
Page 95 of 1897
AX03X-05
D07233
Engine Hood
Cruise Control
Actuator RH Drive ShaftAir Cleaner
Assembly
Shift Control
Cable
LH Drive Shaft
Plug for Line
Pressure TestBattery
TrayBatteryBattery
Insulator Snap Ring
Exhaust Manifold
BracketHole Cover Torque Converter
ClutchShift Control
Cable Clamp
Starter
ClipHold-Down
Clamp
N´m (kgf´cm, ft´lbf) : Specified
Non-reusable part Snap Ring
x5
26 (265, 19)
48 (490, 35)66 (670, 48)20 (200, 15)
15 (150, 11)
7.5 (80, 69 in.´lbf)
Automatic Transaxle
39 (400, 29)
20 (200, 14)
Clip
32 (330, 24)
13 (130, 9)Cap Nut
V-bank CoverV-bank Fastener
41 (420, 30)
41 (420, 30)
Clip
- AUTOMATIC TRANSAXLEAUTOMATIC TRANSAXLE UNIT
AX-33
1323 Author: Date:
2001 AVALON (RM808U)
AUTOMATIC TRANSAXLE UNIT
COMPONENTS
Page 96 of 1897
D07770
RH Fender
Apron SealRH Rear
Lower BraceRear Side Engine
Mounting Insulator
PS Reservoir
Pipe
Front Side Engine
Mounting Insulator
RH Front
Lower Brace
LH Front
Lower Brace
Exhaust Front Pipe Support Bracket
RH Fender LinerGrommet
Gasket
Front Exhaust Pipe
Exhaust Front Pipe
Support Stay
Engine Under CoverCenter Engine
Under CoverLH Fender LinerStabilizer Bar
Stabilizer Bar Link
LH Fender Apron Seal
LH Rear
Lower Brace
Tie Rod End
Cotter Pin
Cotter Pin
Gasket
Gasket
Spring
N´m (kgf´cm, ft´lbf) : Specified torque
Non-reusable part
Lock Cap
36 (370, 27)
32 (330, 24)
10 (100, 7)
181 (1,850, 134)
80 (820, 59)
80 (820, 59)
181 (1,850, 134)
48 (490, 35)
36 (370, 27)
66 (670, 48)
80 (820, 59)
127 (1,300, 94)
62 (630, 46)
33 (330, 24)
19 (195, 14)
39 (400, 29)
181 (1,850, 134)
49 (500, 36)
62 (630, 46)
294 (3,000, 217)
21 (210, 15)
43 (440, 32)
AX-34
- AUTOMATIC TRANSAXLEAUTOMATIC TRANSAXLE UNIT
1324 Author: Date:
2001 AVALON (RM808U)
Page 98 of 1897
AX0KA-01
A07441
5 mm
Hexagon
Wrench
D04381
V-bank Cover
Fastener
D07234
Q09982
- AUTOMATIC TRANSAXLEAUTOMATIC TRANSAXLE UNIT
AX-35
1325 Author: Date:
2001 AVALON (RM808U)
REMOVAL
1. REMOVE ENGINE HOOD
Torque: 26 N´m (265 kgf´cm, 19 ft´lbf)
2. REMOVE BATTERY
3. REMOVE AIR CLEANER ASSEMBLY
4. REMOVE V-BANK COVER
(a) Using a 5 mm hexagon wrench, remove the 3 cap nuts.
(b) Turn the V-bank cover fastener counterclockwise and
loosen it.
(c) Remove the V-bank cover.
HINT:
At the time of installation, please refer to the following item.
When installing the V-bank cover fastener, remove the fasten-
er once, then position and push in it.
5. REMOVE THROTTLE CABLE FROM THROTTLE
BODY
Torque: 15 N´m (150 kgf´cm, 11 ft´lbf)
6. REMOVE CRUISE CONTROL ACTUATOR
(a) Disconnect the connector.
(b) Remove the 3 bolts and disconnect cruise control actua-
tor with the bracket.
Torque: 13 N´m (130 kgf´cm, 9 ft´lbf)