1991 LEXUS SC400 Service Repair Manual

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Page 553 of 4087

LEXUS SC400 1991 Service Repair Manual
ELECTRIC TENSION REDUCER
SYSTEM
Parts Location
Wiring and Connector Diagrams
±
BODY ELECTRICAL SYSTEM Electronic Tension Reducer SystemBE±167
WhereEverybodyKnowsYourName

Page 554 of 4087

LEXUS SC400 1991 Service Repair Manual
Parts Inspection
(Tension Reducer Solenoid)
REMOVAL AND INSTALLATION OF
TENSION REDUCER SOLENOID
(See page BO±71)
INSPECTION OF TENSION REDUCER
SOLENOID
INSPECT TENSION REDUCER SOLENOID
(Operation)

Page 555 of 4087

LEXUS SC400 1991 Service Repair Manual
(Buckle Switch)
REMOVAL AND INSTALLATION OF
BUCKLE SWITCH
1. REMOVE BUCKLE SWITCH(a) Remove the driver or front passengers seat.
(b) Disconnect buckle switch connector.
(c) Remove seat belt inne

Page 556 of 4087

$LEXUS SC400 1991 Service Repair Manual Troubleshooting You will find the cause of trouble more easily properly using the table sho\ wn below. In this table, the numbers indicate the order priority of the causes of trouble. Check each part$

Page 557 of 4087

$LEXUS SC400 1991 Service Repair Manual DEFOGGER SYSTEM Description The component parts of this system and their functions are described in the\ following table. Parts NameFunction DefoggerWhen over current flows in the defogger circuit,$

Page 558 of 4087

LEXUS SC400 1991 Service Repair Manual
Wiring and Connector Diagrams
Parts Inspection
(Defogger Switch)
REMOVAL AND INSTALLATION OF AIR
CONDITIONER CONTROL PANEL
ASSEMBLY
(See Instrument Panel on page BO±111)
INSPECTION OF DEFOGGER SWITC

Page 559 of 4087

LEXUS SC400 1991 Service Repair Manual
(c) Turn the defogger switch ON and check that the testbulb and indicator light turn ON, then turn OFF after
about 15 minutes.
If operation is not as specified, replace the air conditioner
control

Page 560 of 4087

LEXUS SC400 1991 Service Repair Manual
(d) Place the voltmeter positive (+) lead against thedefogger positive (+) terminal.
(e) Place the voltmeter negative (±) lead with the foil strip
against the heat wire at the positive (+) termin

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