1999 TOYOTA CAMRY air conditioning

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).

I09189
Heater Main
Relay
AC224±01
Z19533
34
5
1212 34 5 AC±70
± AIR CONDITIONINGHEATER MAIN RELAY
2552 Author: Date:
HEATER MAIN RELAY
INSPECTION
1. REMOVE HEATER MAIN RELAY FROM ENGINE
ROOM RELAY BLOCK NO. 1
2. INSPECT HEATER MAIN RELAY
(Marking: HTR RLY) CONTINUITY
ConditionTester connectionSpecified condition
Constant1 ± 3
2 ± 4Continuity
Apply B+ between
terminals 1 and 3.4 ± 5Continuity
If continuity is not as specified, replace the relay.

I09189
Magnetic Clutch
Relay
AC225±01
Z18060
35
1212 3
5
± AIR CONDITIONINGMAGNETIC CLUTCH RELAY
AC±71
2553 Author: Date:
MAGNETIC CLUTCH RELAY
INSPECTION
1. REMOVE MAGNETIC CLUTCH RELAY FROM ENGINE
ROOM RELAY BLOCK NO. 1
2. INSPECT HEATER MAIN RELAY
(Marking: MG CLT RLY) CONTINUITY
ConditionTester connectionSpecified condition
Constant1 ± 2Continuity
Apply B+ between
terminals 1 and 2.3 ± 5Continuity
If continuity is not as specified, replace the relay.