TOYOTA AVALON 2001 Service Manual PDF

AC105-03
I12957I12958
I12968
Non reusable part
N´m (kgf´cm, in.´lbf)
: Specified toque
Condenser Fan Connector
Condenser Fan
FanFan Shroud
Fan Motor
Upper Hose AC-72
- AIR CONDITIONINGCONDENSER FAN
1994 Author
: Date
:
2001 AVALON (RM808U)
COMPONENTS

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.

AC2FW-01
P00763
Pivot Bolt
Adjusting Lock Bolt
- AIR CONDITIONINGDRIVE BELT
AC-19
1941 Author
: Date
:
2001 AVALON (RM808U)
INSTALLATION
INSTALL DRIVE BELT
(a) Install the drive belt.
(b) Apply drive belt tension by adjusting bolt.
Drive belt tension:
New belt: 165 ± 22 lbf
Used belt: 110 ± 22 lbf
(c) Tighten the adjusting lock bolt and pivot bolt.
Torque:
Pivot bolt: 56 N´m (570 kgf´cm, 41 ft´lbf)
Adjusting lock bolt: 18 N´m (185 kgf´cm, 13 ft´lbf)

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.

AC0YG-03
P00763
Pivot Bolt
Adjusting Lock Bolt
AC-18
- AIR CONDITIONINGDRIVE BELT
1940 Author
: Date
:
2001 AVALON (RM808U)
REMOVAL
REMOVE DRIVE BELT
(a) Loosen the pivot bolt and adjusting lock nut.
(b) Loosen the drive belt tension by adjusting bolt and re-
move the drive belt.

AC2GG-01
I12917
AC0175
Thermometer
Ice
Ohmmeter
Sensor
10 cm
(3.94 in.)
Z04352
5,000
500
0
0 4,500
4,000
3,500
3,000
2,500
2,000
1,500
1,000
51015 2025
32 41 50 59 68 77 (W)
(°C)
(°F)
AC-64
- AIR CONDITIONINGEVAPORATOR TEMPERATURE SENSOR
1986 Author
: Date
:
2001 AVALON (RM808U)
EVAPORATOR TEMPERATURE
SENSOR
INSPECTION
1. REMOVE EVAPORATOR TEMPERATURE SENSOR
(a) Remove the blower unit (See page AC-37).
(b) Remove evaporator temperature sensor.
(1) Disconnect the connector.
(2) Pull out the sensor.
2. INSPECT EVAPORATOR TEMPERATURE SENSOR
Inspect evaporator temperature sensor resistance.
(1) Place the sensor in cold water, and while changing
the temperature of the water, measure resistance at
the connector and at the same time, measure tem-
perature of the water with a thermometer.
(2) Compare the 2 readings on the chart.
If resistance value is not as specified, replace the sensor.
3. INSTALL EVAPORATOR TEMPERATURE SENSOR
(a) Install the evaporator temperature sensor.
(1) Install the sensor.
(2) Connect the connector.
(b) Install the blower unit. (See page AC-41)

AC2GO-01
I12961I12955I12970
Instrument Panel Register
RadioBracket
Bucket seat type:
Flash Receptacle
Bench seat type:
Instrument Lower Cover
Heater Control Assembly Bracket
Heater Control Cover
Bulb
Air Conditioning Panel
Air Mix Damper Control Cable
(Color: Blue) Heater Control Housing Air Mix Damper Control Cable
(Color: Black)
Heater Control Name Sheet
Bulb
Knobs
- AIR CONDITIONINGHEATER CONTROL ASSEMBLY (Manual A/C)
AC-81
2003 Author
: Date
:
2001 AVALON (RM808U)
COMPONENTS

I12971
91 : Bulb
AC2GQ-01
I07872
I12972
11
10
I12973
11
10
1
- AIR CONDITIONINGHEATER CONTROL ASSEMBLY (Manual A/C)
AC-83
2005 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION
1. INSPECT ILLUMINATION OPERATION
Connect the positive (+) lead from the battery to terminal 1 and
negative (-) lead to terminal 9 then check that the illuminations
lights up.
If operation is not as specified, check the faulty bulb.
2. INSPECT BULB
Apply the tester as shown in the illustration to the test for conti-
nuity.
If continuity exists, replace the heater control.
If no continuity exists, replace the bulb.
3. INSPECT A/C INDICATOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
10 and the negative (-) lead to terminal 11.
(b) Push the A/C button in and then check that the indicator
lights up.
If operation is not as specified, replace the switch.
4. INSPECT DIMMING OPERATION
(a) Connect the positive (+) lead from the battery to terminal
10 and the negative (-) lead to terminal 11 while press the
switch.
(b) Connect the positive (+) lead from the battery to terminal
1 and then check that the indicator dims.
If operation is not as specified, replace the switch.

I12974
I12975
10 8
I12976
10 8
1
I12977
I12978
10 7 AC-84
- AIR CONDITIONINGHEATER CONTROL ASSEMBLY (Manual A/C)
2006 Author
: Date
:
2001 AVALON (RM808U)
5. INSPECT A/C SWITCH CONTINUITY
Condition / CircuitTester connectionSpecified condition
OFF5 - 6No continuity
ON5 - 6Continuity
If operation is not as specified, replace the switch circuit board.
6. INSPECT RECIRC INDICATOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
10 and the negative (-) lead to terminal 8.
(b) Push the REC button in and then check that the indicator
lights up.
If operation is not as specified, replace the switch circuit board.
7. INSPECT DIMMING OPERATION
(a) Connect the positive (+) lead from the battery to terminal
10 and the negative (-) lead to terminal 8 while press the
switch.
(b) Connect the positive (+) lead from the battery to terminal
4 and then check that the indicator dims.
If operation is not as specified, replace the switch circuit board.
8. INSPECT RECIRC SWITCH CONTINUITY
Condition / CircuitTester connectionSpecified condition
OFF18 - 8No continuity
ON18 - 8Continuity
If operation is not as specified, replace the switch circuit board.
9. INSPECT FRESH INDICATOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
10 and the negative (-) lead to terminal 8.
(b) Push the FRS button in and then check that the indicator
lights up.
If operation is not as specified, replace the switch circuit board.

I12979
10 8
1
I12977
I12980
10 8
4
I12981
10 8
41
I12982
- AIR CONDITIONINGHEATER CONTROL ASSEMBLY (Manual A/C)
AC-85
2007 Author
: Date
:
2001 AVALON (RM808U)
10. INSPECT DIMMING OPERATION
(a) Connect the positive (+) lead from the battery to terminal
10 and the negative (-) lead to terminal 8 while press the
switch.
(b) Connect the positive (+) lead from the battery to terminal
1 and then check that the indicator dims.
If operation is not as specified, replace the switch circuit board.
11. INSPECT FRESH SWITCH CONTINUITY
Condition / CircuitTester connectionSpecified condition
OFF17 - 8No continuity
ON17 - 8Continuity
If operation is not as specified, replace the switch circuit board.
12. INSPECT REAR DEFOGGER INDICATOR OPERA-
TION
(a) Connect the positive (+) lead from the battery to terminal
10, 4 and negative (-) lead to terminal 8.
(b) Push the RDEF button in and then check that the indicator
lights up.
If operation is not as specified, replace the switch circuit board.
13. INSPECT DIMMING OPERATION
(a) Connect the positive (+) lead from the battery to terminal
10, 4 and negative (-) lead to terminal 8 while press the
switch.
(b) Connect the positive (+) lead from the battery to terminal
1 and then check that the indicator dims.
If operation is not as specified, replace the switch circuit board.
14. INSPECT REAR DEFOGGER SWITCH CONTINUITY
Condition / CircuitTester connectionSpecified condition
OFF4 - 8No continuity
ON4 - 8Continuity
If operation is not as specified, replace the switch circuit board.