1991 LEXUS SC400 Service Repair Manual

Page 169 of 4087

LEXUS SC400 1991  Service Repair Manual 
BLOWER RESISTOR
REMOVAL OF BLOWER RESISTOR
1.  REMOVE GLOVE BOXSee page  BO±112
2. REMOVE RESISTOR
(a)  Disconnect the connector.
(b)  Remove the two screws and the resistor.
INSPECTION OF BLOWER RE

Page 170 of 4087

LEXUS SC400 1991  Service Repair Manual 
AMBIENT TEMPERATURE SENSOR
REMOVAL OF AMBIENT TEMPERATURE
SENSOR
1.  REMOVE ENGINE UNDER COVER
2. REMOVE SENSOR
(a)  Remove the clip and the sensor.
(b)  Disconnect the connector.
INSPECTION OF AMBIE

Page 171 of 4087

LEXUS SC400 1991  Service Repair Manual 
SOLAR SENSOR
REMOVAL OF SOLAR SENSOR
1.  REMOVE NO. 1 DEFROSTER GARNISHSee page  BO±109
2. REMOVE SENSOR Push out the sensor from the garnish.
INSPECTION OF SOLAR SENSOR
See page  AC±52
INSTALLATIO

Page 172 of 4087

LEXUS SC400 1991  Service Repair Manual 
REVOLUTION DETECTING SENSOR
INSPECTION OF REVOLUTION
DETECTING SENSOR
See page AC±55
REMOVAL OF REVOLUTION DETECTING
SENSOR
1. REMOVE COMPRESSOR
See page  AC±111
2. REMOVE SENSOR Remove the two bol

Page 173 of 4087

LEXUS SC400 1991  Service Repair Manual 
WATER TEMPERATURE SENSOR
REMOVAL OF WATER TEMPERATURE
SENSOR
1.  REMOVE A/C UNITSee page  AC±107
2. REMOVE SENSOR After taking off the clamp, take out the sensor.
INSPECTION OF WATER TEMPERATURE
SEN

Page 174 of 4087

LEXUS SC400 1991  Service Repair Manual 
INSTALLATION OF PRESSURE SWITCH
1.  INSTALL PRESSURE SWITCH
(a)  Install the pressure switch to the liquid tube.
Specified torque: 10 NVm (100 kgf Vcm, 7 ft Vlbf)
HINT: Lock the switch mount on the t

Page 175 of 4087

LEXUS SC400 1991  Service Repair Manual 
INSTALLATION OF PRESSURE SWITCH
1.  INSTALL PRESSURE SWITCH
(a)  Install the pressure switch to the liquid tube.
Specified torque: 10 NVm (100 kgf Vcm, 7 ft Vlbf)
HINT: Lock the switch mount on the t

Page 176 of 4087

LEXUS SC400 1991  Service Repair Manual 
A/C CONTROL ASSEMBLY
(A/C ECU)
REMOVAL OF A/C CONTROL ASSEMBLY
1.  REMOVE RADIO AND A/C CONTROL ASSEMBLYSee page  BO±112
2.  REMOVE A/C CONTROL ASSEMBLY Remove four screws and the A/C control assemb