1996 TOYOTA TERCEL Service Repair Manual

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).

Z06166
12 34
5
12 345
AC2X8-02
AC-62
- AIR CONDITIONINGHEATER MAIN RELAY
1214 Author
: Date
:
1996 TERCEL (RM440U)
HEATER MAIN RELAY
INSPECTION
INSPECT HEATER MAIN RELAY CONTINUITY
ConditionTester connectionSpecified condition
Constant1 - 3
2 - 4Continuity
Apply B+ between
terminals 3 and 5.4 - 5Continuity
If continuity is not as specified, replace the relay.

Z06346
1
2
3 41 2
3 4
AC2X9-01
- AIR CONDITIONINGMAGNETIC CLUTCH RELAY
AC-63
1215 Author
: Date
:
1996 TERCEL (RM440U)
MAGNETIC CLUTCH RELAY
INSPECTION
INSPECT MAGNETIC CLUTCH RELAY CONTINUITY
ConditionTester connectionSpecified condition
Constant1 - 3Continuity
Apply B+ between
terminals 3 and 5.2 - 4Continuity
If continuity is not as specified, replace the relay.