Page 145 of 1807
N08734
AC0R3-01
N08738
- AIR CONDITIONINGBLOWER MOTOR
AC-59
2207 Author: Date:
1997 SUPRA (RM502U)
BLOWER MOTOR
REMOVAL
1. REMOVE THESE PARTS:
(a) Glove compartment parts
(See page BO-54)
(b) Heater to registor No.4 duct
(c) Front door scuff plate RH
(d) ECM cover
2. REMOVE BLOWER MOTOR
(a) Slide the floor carpet backward.
(b) Disconnect the connector.
(c) Remove the 3 screws and the blower motor.
Page 146 of 1807
AC0R6-01
N08742
AC-62
- AIR CONDITIONINGBLOWER MOTOR CONTROL RELAY
2210 Author: Date:
1997 SUPRA (RM502U)
BLOWER MOTOR CONTROL
RELAY
REMOVAL
1. REMOVE BLOWER MOTOR
(See page AC-59)
2. REMOVE BLOWER MOTOR CONTROL RELAY
(a) Disconnect the connector.
(b) Remove the 3 screws and the blower motor control relay.
Page 147 of 1807
AC0R9-01
N08381
N16964
- AIR CONDITIONINGSERVOMOTOR
AC-65
2213 Author: Date:
1997 SUPRA (RM502U)
SERVOMOTOR
REMOVAL
1. REMOVE AIR INLET SERVOMOTOR
(a) Remove instrument panel.
(See page BO-54)
(b) Remove air inlet servomotor.
(1) Disconnect the connector.
(2) Disconnect the control link.
(3) Remove the 3 screws and the air inlet servomotor.
2. REMOVE AIR MIX SERVOMOTOR
(a) Remove instrument panel.
(See page BO-54)
(b) Remove air mix servomotor.
(1) Remove the defroster duct.
(2) Remove the 3 screws and the water valve cover.
(3) Disconnect the connector.
(4) Remove the 3 screws and the servomotor then dis-
connect the control link.
Page 148 of 1807
N08404
AC-66
- AIR CONDITIONINGSERVOMOTOR
2214 Author: Date:
1997 SUPRA (RM502U)
3. REMOVE AIR OUTLET SERVOMOTOR
(a) Remove instrument panel.
(See page BO-54)
(b) Remove air outlet servomotor.
(1) Disconnect the connector.
(2) Remove the 3 screws and the air outlet servomotor.
Page 149 of 1807
AC0RC-01
N08535
N08693
N08540
- AIR CONDITIONINGSENSOR
AC-69
2217 Author: Date:
1997 SUPRA (RM502U)
SENSOR
REMOVAL
1. REMOVE SOLAR SENSOR
(a) Remove instrument panel.
(See page BO-54)
(b) Remove solar sensor.
Disconnect the connector pull the solar sensor upward
from instrument panel.
2. REMOVE ROOM TEMPERATURE SENSOR
(a) Remove center cluster panel.
(See page BO-50)
(b) Remove room temperature sensor.
(1) Disconnect the connector.
(2) Remove the aspirator hose.
(3) Remove the 2 screws and the room temperature
sensor.
3. REMOVE AMBIENT TEMPERATURE SENSOR
Remove ambient temperature sensor.
(1) Remove the ambient temperature sensor from the
bumper reinforcement.
(2) Disconnect the connector.
Page 150 of 1807
N08382
N08399
AC-70
- AIR CONDITIONINGSENSOR
2218 Author: Date:
1997 SUPRA (RM502U)
4. REMOVE ENGINE COOLANT TEMPERATURE SEN-
SOR
(a) Remove air conditioning unit.
(See page AC-25)
(b) Remove engine coolant temperature sensor.
(1) Disconnect the connector.
(2) After pulling off the clamp, pull out the sensor.
5. REMOVE EVAPORATOR TEMPERATURE SENSOR
(a) Remove evaporator.
(See page AC-47)
(b) Remove evaporator temperature sensor.
Pull out the evaporator temperature sensor from the
evaporator.
Page 151 of 1807

N08405
AC0RF-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
Cooling Fan Control
1, 520 kPa
(15.5 kgf´cm2, 220psi)
ON
(Continuity)
OFF
(No Continity)
1, 226 kPa
(12.5 kgf´cm
2, 178psi)
- AIR CONDITIONINGPRESSURE SWITCH
AC-73
2221 Author: Date:
1997 SUPRA (RM502U)
PRESSURE SWITCH
ON-VEHICLE INSPECTION
1. SET ON MANIFOLD GAUGE SET
(See page AC-18)
2. DISCONNECT CONNECTOR FROM PRESSURE
SWITCH
3. RUN ENGINE AT APPROX. 2,000 RPM
4. Magnetic Clutch Control:
INSPECT PRESSURE SWITCH OPERATION
( ): 2JZ-GTE
(a) Connect the positive (+) lead from the ohmmeter to termi-
nal 4 (1) and the negative (-) lead to terminal 1 (2).
(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. 2JZ-GTE Engine Models:
Condenser Fan Control:
INSPECT PRESSURE SWITCN 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 shwn 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
Page 152 of 1807
AC0RG-01
N08405
AC-74
- AIR CONDITIONINGPRESSURE SWITCH
2222 Author: Date:
1997 SUPRA (RM502U)
REMOVAL
1. DISCONNECT REFRIGERANT FROM REFRIGERA-
TION 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: 700 ± 50 g (24.69 ± 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 mounted 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.