TOYOTA CAMRY 1999 Service Owner's Manual

AC0LR±01
± AIR CONDITIONINGREFRIGERANT LINE
AC±21
2503 Author: Date:
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.

AC0LS±02
I07049
Suction TubeLiquid Tube
Piping Clamp
Liquid Tube
Suction Hose
Discharge Hose
N´m (kgf´cm, ft´lbf) : Specified torque
32 (330, 24)
5.4 (55, 48 in.´lbf)
5.4 (55, 48 in.´lbf)
10 (100, 7)
10 (100, 7)
10 (100, 7)
14 (140, 10)
5.4 (55, 48 in.´lbf)
AC±22
± AIR CONDITIONINGREFRIGERANT LINE
2504 Author: Date:
LOCATION

AC0LT±03
± AIR CONDITIONINGREFRIGERANT LINE
AC±23
2505 Author: Date:
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 torque.
Part tightenedN´mkgf´cmft´lbf
Receiver x Liquid tube5.45548 in.´lbf
Condenser x Discharge hose101007
Condenser x Liquid tube1414010
Compressor x Discharge hose101007
Compressor x Suction hose101007
Expansion valve x Evaporator5.45548 in.´lbf
Suction line (Piping joint)3233024
Suction line (Block joint)101007
4. EVACUATE AIR FROM REFRIGERATION SYSTEM AND CHARGE WITH REFRIGERANT
Specified amount : 800 ± 50g (28.22 ± 1.76 oz.)
5. INSPECT FOR LEAKAGE OF REFRIGERANT
Using a gas leak detector, check for leakage of refrigerant.
6. INSPECT AIR CONDITIONING OPERATION

AC21U±01
N20296
N20294
AC±24
± AIR CONDITIONINGAIR CONDITIONING UNIT
2506 Author: Date:
AIR CONDITIONING UNIT
ON±VEHICLE INSPECTION
1. INSPECT FOR LEAKAGE OF REFRIGERANT
(a) Remove glove compartment (See page BO±75).
(b) Remove the blower resistor.
(1) Disconnect the connector.
(2) Remove the 2 screws and blower resistor.
(c) Using a gas leak detector, check for leakage.
If there is leakage, check the tightening torque at the joints or
check the evaporator.
(d) Install the blower resistor.
(e) Install the lower No. 2 finish panel (See page BO±81).
2. INSPECT THERMISTOR RESISTANCE
(a) Disconnect the connector.
(b) Measure resistance between terminals.
Standard resistance: 1,500 W at 25°C (77°F)
If resistance is not as specified, replace the thermistor.

AC21V±01
I07050
ReinforcementInstrument Panel
No. 1 Brace
No. 2 Brace
A/C Unit
Piping Clamp
Suction Tube
Liquid Tube
Piping Clamp

O±ring
O±ring
Air Duct (Rear Foot)
Air Duct (Foot)Blower Motor
Connector Bracket
Non±reusable partWater Hose
± AIR CONDITIONINGAIR CONDITIONING UNIT
AC±25
2507 Author: Date:
COMPONENTS

I07051
Heater Protector
Heater Radiator
Pipe

Packing

O±ring

O±ring
Heater Radiator
Plate
Heater CaseGrommet

Packing
x13
Air Outlet Servomotor
Water Seal
Air Duct (Foot)
Holder
Thermistor
5.4 (55, 48)
5.4 (55, 48)

O±ring

O±ring
Tube and Accessory
Expansion Valve
Drain Hose
Insulator
Plate
Evaporator
Heater Case
N´m (kgf´cm, in:lbf) : Specified torque

Non±reusable part
AC±26
± AIR CONDITIONINGAIR CONDITIONING UNIT
2508 Author: Date:

AC21W±01
N20288
N20237
Water Hose
MarkingUpper
LH
Hose ClipRH Heater Radiator Pipe
45 ± 10°
Lower
I09160
± AIR CONDITIONINGAIR CONDITIONING UNIT
AC±27
2509 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. DRAIN ENGINE COOLANT FROM RADIATOR
HINT:
It is not necessary to drain out all the coolant.
3. DISCONNECT WATER HOSE FROM HEATER RADIA-
TOR PIPES
(a) Using pliers, grip the claws of the hose clip and slide the
hose clip along the hose.
(b) Disconnect the water hose.
HINT:
At the time of installation, please refer to the following items.

Push the water hose onto the heater radiator pipe as far
as ridge on the pipe and install the hose clip.

Install the hose clip in a position, as shown in the illustra-
tion.
4. REMOVE BLOWER UNIT (See page AC±35)
5. REMOVE INSTRUMENT PANEL AND REINFORCE-
MENT (See page BO±75)
6. DISCONNECT LIQUID AND SUCTION TUBES
(a) Using SST, remove the 2 piping clamps.
SST 09870±00015 (Suction tube)
09870±00025 (Liquid tube)

I03838
SST
I03839
PushSST
Pull
SST
Release
Lever
I06919
Disconnect the tube
using hand
Screw
Driver
Tube
I06878
Correct Wrong
Gap
N20281
AC±28
± AIR CONDITIONINGAIR CONDITIONING UNIT
2510 Author: Date:
(1) Inert SST to piping clamp.
HINT:
Confirm the direction of the piping clamp claw and SST using
the illustration showing on the caution label.
(2) Push down SST and release the clamp lock.
NOTICE:
Be careful not to deform the tubes, when pushing SST.
(3) Pull SST slightly and push the release lever, then re-
move the piping clamp with SST.
(4) Remove the piping clamp from SST.
(b) Disconnect the both tubes.
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.
HINT:
At the time of installation, please refer to the following item.

Lubricate 4 new O±rings with compressor oil and install
the tubes.

After connection, check the fitting for claw of the piping
clamp.
7. REMOVE A/C UNIT
(a) Disconnect the connector.
(b) Slide the floor carpet backward.
(c) Remove the rear heater duct.
(d) Remove the 2 nuts and A/C unit.

AC21X±01
N20287
N20283
N20243
x13Water Seal
Plate
EvaporatorInsurator
N20293
± AIR CONDITIONINGAIR CONDITIONING UNIT
AC±29
2511 Author: Date:
DISASSEMBLY
1. REMOVE AIR OUTLET SERVOMOTOR
(a) Release the claw and pull out the plate.
(b) Remove the 3 screws and servomotor.
2. REMOVE HEATER RADIATOR
(a) Remove the 3 screws and 3 plates.
(b) Remove the 2 clips and heater radiator pipes.
(c) Pull out the heater radiator.
3. REMOVE THESE FOOT AIR DUCT LH
4. REMOVE EXPANSION VALVE
(a) Remove piping clamp.
(b) Remove the packings.
(c) Using a hexagon wrench (5.0 mm, 0.20 in.), remove the
2 bolts and separate the expansion valve and evaporator.
5. REMOVE EVAPORATOR
(a) Remove the grommet from the evaporator.
(b) Using a knife, cut off each packings.
HINT:
Do not reuse the packing.
(c) Remove the 13 screws and separate the heater cases,
then remove the evaporator and water seal.
(d) Release the 4 claws and remove the plate from the evap-
orator.
6. PEEL OFF THE WATER SEAL FROM HEATER UNIT
7. REMOVE THERMISTOR
Pull out the thermistor with the holders.

AC21Y±01
I03338
Thermometer
Ice
10 cm
(0.39 in.)
Ohmmeter
Thermistor
Z04352
(W)
5,000
0 500 1,0001,500 2,000 2,500 3,000 3,500 4,000 4,500
5 010152025(°C)
32
4150 68
77(°F) 59
AC±30
± AIR CONDITIONINGAIR CONDITIONING UNIT
2512 Author: Date:
INSPECTION
1. CHECK EVAPORATOR FINS FOR BLOCKAGE
If the fins are clogged, clean them with compressed air.
NOTICE:
Never use water to clean the evaporator.
2. CHECK FITTING FOR CRACKS OR SCRATCHES
Repair as necessary.
3. INSPECT THERMISTOR RESISTANCE
(a) Place the thermistor in cold water, and while changing the
temperature of water, measure resistance at the connec-
tor and at the same time, measure temperature of water
with a thermometer.
(b) Compare the 2 readings on the chart.
If resistance value is not as specified, replace the thermistor.