TOYOTA CAMRY 1999 Service Manual PDF

AC220±01
N20246Expansion Valve AC±60
± AIR CONDITIONINGEXPANSION VALVE
2542 Author: Date:
REMOVAL
1. DISCHARGE REFRIGERANT FROM REFRIGERATION
SYSTEM
2. DISCONNECT LIQUID AND SUCTION TUBES FROM
A/C UNIT (See page AC±27)
3. REMOVE BLOWER UNIT (See page AC±35)
4. REMOVE EXPANSION VALVE
(a) Remove the piping clamp.
(b) Ply out the packing.
HINT:
Do not reuse the packing.
(c) Using a hexagon wrench, remove the 2 bolts and sepa-
rate the expansion valve and evaporator.

AC0MO±02
N21046
N21045
N21044
± AIR CONDITIONINGEXPANSION VALVE
AC±61
2543 Author: Date:
INSTALLATION
1. INSTALL LIQUID TUBE AND SUCTION TUBE TO EX-
PANSION VALVE
HINT:
Lubricate 4 new O±rings with compressor oil and install the
tubes.
2. INSTALL NEW PACKING ON EXPANSION VALVE
(a) Cut off packing paper and peel off the packing paper, as
shown in the illustration.
HINT:
Leave the packing paper untaped on the tube side so that the
installing bolt hole for remains visible.
(b) Apply the packing on the expansion valve.
NOTICE:
Do not overtape the packing beyond the expansion valve
edge.

N20246
AC±62
± AIR CONDITIONINGEXPANSION VALVE
2544 Author: Date:
3. INSTALL EXPANSION VALVE
(a) Install the expnaion valve with the 2 bolts.
Torque: 5.4 N´m (55 kgf´cm, 48 in.´lbf)
NOTICE:
When installing the expansion valve, take care so that the
packing is not jammed with the evaporator.
HINT:
Lubricate 2 new O±rings with compressor oil and install O±rings
on the expansion valve.
(b) Peel off the remaing packing paper and apply the packing
to expansion valve.
4. INSTALL BLOWER UNIT (See page AC±38)
5. INSTALL GLOVE COMPARTMENT
(See page BO±81)
6. CONNECT LIQUID TUBE AND SUCTION TUBES TO
A/C UNIT (See page AC±33)
7. EVACUATE AIR FROM REFRIGERATION SYSTEM
AND CHARGE SYSTEM WITH REFRIGERANT
Specified amount: 800 ± 50 g (28.22 ± 1.76 oz.)
8. INSPECT FOR LEAKAGE OF REFRIGERANT
Using a gas leak detector, check for leakage of refrigerant.
If there is leakage, check the tightning torque at the joints.

AC221±01
N20295
N16762
21
N20295
± AIR CONDITIONINGBLOWER MOTOR
AC±63
2545 Author: Date:
BLOWER MOTOR
INSPECTION
1. REMOVE GLOVE COMPARTMENT
(See page BO±75)
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
the negative (±) lead to terminal 1, then check that the motor op-
erations 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
(See page BO±81)

AC222±01
N20296
Z19190
1 2
3 4
N20296
AC±64
± AIR CONDITIONINGBLOWER RESISTOR
2546 Author: Date:
BLOWER RESISTOR
INSPECTION
1. REMOVE GLOVE COMPARTMENT
(See page BO±75)
2. REMOVE BLOWER RESISTOR
(a) Disconnect the connector.
(b) Remove the 2 screws and blower resistor.
3. INSPECT BLOWER RESISTOR RESISTANCE
Tester connectionConditionSpecified condition
2 ± 4ConstantApprox. 0.38 W
2 ± 3ConstantApprox. 1.12 W
1 ± 3ConstantApprox. 1.74 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
(See page BO±81)

AC223±01
N20287
N20278
Z19151
DEF.FOOT/DEF.
FOOT BI±LEVEL
FACE
1
2
3
4 5 6
736°
0 ± 2.5° 36° 40°53°
± AIR CONDITIONINGAIR OUTLET SERVOMOTOR
AC±65
2547 Author: Date:
AIR OUTLET SERVOMOTOR
INSPECTION
1. REMOVE NO. 1 LOWER INSTRUMENT PANEL
2. REMOVE LH INSTRUMENT LOWER PANEL
(See page BO±75)
3. REMOVE SERVOMOTOR
(a) Release the claw and pull out the plate.
(b) Disconnect the connector.
(c) Remove the 3 screws and servomotor.
4. INSPECT SERVOMOTOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
6 and the negative (±) lead to terminal 7.
(b) Connect the negative (±) lead from the battery to each ter-
minal and check that the shaft rotates at each position, as
shown in the illustration.
Connected terminalPosition
5DEF.
4FOOT/DEF.
3FOOT
2B/L
1FACE
If operation is not as specified, replace the servomotor.

N20278
N20287
N20245
Pin
Pin AC±66
± AIR CONDITIONINGAIR OUTLET SERVOMOTOR
2548 Author: Date:
5. INSTALL SERVOMOTOR
(a) Install servomotor with the 3 screws.
(b) Connect he connector.
(c) Install the plate, then restraint the claw.
(d) Insert the drain of plate to the lever pin.
6. INSTALL LH INSTRUMENT LOWER PANEL
7. INSTALL NO. 1 LOWER INSTRUMENT PANEL
(See page BO±81)

N20291
AC0N2±02
Z13470
Magnetic clutch control
Low pressure side
ON (Continuity)
196 kPa
(2.0 kgf/cm
2, 28 psi)High pressure side
3, 140 kPa
(32.0kgf/cm2, 455 psi)
OFF (No Continuity)
Z13471
1, 226 kPa
(12.5 kgf/cm2, 178 psi)OFF
(No Continuity) Condenser fan control
ON
(Continuity)150 kPa
(15.5 kgf/cm
2, 220 psi)
± AIR CONDITIONINGPRESSURE SWITCH
AC±67
2549 Author: Date:
PRESSURE SWITCH
ON±VEHICLE INSPECTION
1. SET ON MANIFOLD GAUGE SET
(See page AC±19)
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 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. Condenser fan control:
INSPECT PRESSURE SWITCH OPERATION
(a) Connect the positive (+) lead from the ohmmeter to termi-
nal 2 and 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 REMOVE MANIFOLD GAUGE
SET
7. CONNECT CONNECTOR TO PRESSURE SWITCH

AC0N3±02
N20292
AC±68
± AIR CONDITIONINGPRESSURE SWITCH
2550 Author: Date:
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: 800 ± 50 g (28.22 ± 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 mount 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
the switch.

AC0N4±01
± AIR CONDITIONINGPRESSURE SWITCH
AC±69
2551 Author: Date:
INSTALLATION
Installation is in the reverse order of removal (See page AC±68).