TOYOTA TERCEL 1996 Service Repair Manual

AC2X0-02
AC-52
- AIR CONDITIONINGEVAPORATOR
1204 Author
: Date
:
1996 TERCEL (RM440U)
EVAPORATOR
INSPECTION
1. REMOVE EVAPORATOR (See page AC-27)
2. INSPECT FINS FOR BLOCKAGE
If the fins are clogged, clean them with compressed air.
NOTICE:
Never use water to clean the evaporator.
3. INSPECT FITTINGS FOR CRACKS OR SCRATCHES
Repair as necessary.
4. REINSTALL EVAPORATOR (See page AC-30)

AC2WX-02
- AIR CONDITIONINGHEATER RADIATOR
AC-53
1205 Author
: Date
:
1996 TERCEL (RM440U)
HEATER RADIATOR
INSPECTION
1. REMOVE HEATER RADIATOR (See page AC-32)
2. INSPECT FINS FOR BLOCKAGE
If the fins are clogged, clean them with compressed air.
3. REINSTALL HEATER RADIATOR (See page AC-32)

AC2XI-01
AC-54
- AIR CONDITIONINGEXPANSION VALVE
1206 Author
: Date
:
1996 TERCEL (RM440U)
EXPANSION VALVE
ON-VEHICLE INSPECTION
1. CHECK QUANTITY OF GAS DURING REFRIGERATION CYCLE
2. INSTALL MANIFOLD GAUGE SET
3. RUN ENGINE
Run the engine at 1,500 rpm for at least 5 minutes. Then check that the high pressure reading is 1.37 - 1.57
MPa (14 - 16 kgf/cm
2, 199 - 228 psi).
4. CHECK EXPANSION VALVE
If the expansion valve is faulty, the low pressure reading will drop to 0 kgf/cm
2, 0 psi), otherwise it is OK.
HINT:
When the low pressure drops to 0 kPa (0 kgf/cm
2, 0 psi), feel the receiver's IN and OUT sides for 0 tempera-
ture difference.

AC3IS-01
N12551
- AIR CONDITIONINGBLOWER MOTOR
AC-55
1207 Author
: Date
:
1996 TERCEL (RM440U)
BLOWER MOTOR
INSPECTION
1. REMOVE BLOWER MOTOR
(a) Remove the glove compartment parts.
(b) Remove the A/C amplifier.
(c) Disconnect the connector from the blower motor.
(d) Remove the 3 screws and the blower motor.
2. INSPECT BLOWER MOTOR OPERATION
Connect the positive (+) lead from the battery to terminal 1 and
the negative (-) lead to terminal 2, then check that the motor op-
erations smoothly.
If operation is not as specified, replace the blower motor.
3. REINSTALL BLOWER MOTOR
Install the motor in the reverse order of step1.

N12245
AC3IT-01
N09039
1 2
3 4 AC-56
- AIR CONDITIONINGBLOWER RESISTOR
1208 Author
: Date
:
1996 TERCEL (RM440U)
BLOWER RESISTOR
INSPECTION
1. REMOVE BLOWER RESISTOR
(a) Remove the lower finish panel.
(b) Disconnect the connector from the blower resistor.
(c) Remove the 2 screws and blower resistor.
2. INSPECT BLOWER RESISTOR CONTINUITY
ConditionTester connectionSpecified condition
Constant1 - 2 - 3 - 4Continuity
If continuity is not as specified, replace the blower resistor.

N12244
21
AC2XM-01
- AIR CONDITIONINGTHERMISTOR
AC-57
1209 Author
: Date
:
1996 TERCEL (RM440U)
THERMISTOR
ON-VEHICLE INSPECTION
1. REMOVE GLOVE COMPARTMENT PARTS
(See page BO-45)
2. INSPECT THERMISTOR'S RESISTANCE
Measure resistance between terminals.
Standard resistance:
1,500 W at 25°C (77°F)
If resistance is not as specified, replace the thermistor.

AC2XO-02
AC0175
Thermometer
Ice
ThermistorMore than
10 cm (3.94 in.)Ohmmeter
AC0548
5,500
5,000
4,500
4,000
3,500
Temperature
Resistance (W)
-1
300
321
342
363
384
40°F 5°C
AC-58
- AIR CONDITIONINGTHERMISTOR
1996 TERCEL (RM440U)
INSPECTION
1. REMOVE THERMISTOR (See page AC-27)
2. INSPECT THERMISTOR RESISTANCE
(a) Place the thermistor in cold water. While changing tem-
perature of the 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.
3. REINSTALL THERMISTOR (See page AC-27)

AC1D2-02
Z13470
Magnetic Clutch Control
Low Pressure Side High Pressure Side
ON (Continuity)
196 kPa
(2.0 kgf´cm
2, 28 psi)
OFF (No Continuity)3, 140 kPa
(32.0 kgf´cm2, 455 psi)
OFF (No Continuity)
Z13471
1, 520 kPa
(15.5 kgf´cm2, 220psi)
ON
(Continuity)
OFF
(No Continity)
1, 226 kPa
(12.5 kgf´cm
2, 178psi) Condenser Fan Control
- AIR CONDITIONINGPRESSURE SWITCH
AC-59
1211 Author
: Date
:
1996 TERCEL (RM440U)
PRESSURE SWITCH
ON-VEHICLE INSPECTION
1. SET ON MANIFOLD GAUGE SET
(See page AC-21)
2. DISCONNECT CONNECTOR FROM PRESSURE
SWITCH
3. RUN ENGINE AT APPROX. 2,000 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 charged, 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 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

AC1D3-02
I06959
Pressure Switch AC-60
- AIR CONDITIONINGPRESSURE SWITCH
1996 TERCEL (RM440U)
REMOVAL
1. DISCHARGE REFRIGERANT FROM REFRIGERANT
SYSTEM
Charge system with refrigerant and inspect for leakage of refrig-
erant.
HINT:
At the time of installation, evacuate air from refrigeration sys-
tem.
Specified amount: 600 ± 50 g (21.16 ± 1.76 oz.)
2. REMOVE PRESSURE SWITCH FROM LIQUID TUBE
(a) Disconnect the connector.
(b) Remove the pressure switch from the liquid tube.
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, lubricate a new O-ring with
compressor oil and install them to the switch.

AC1D4-02
- AIR CONDITIONINGPRESSURE SWITCH
AC-61
1996 TERCEL (RM440U)
INSTALLATION
Installation is in the reverse order of removal procedure (See page AC-60).