1991 LEXUS SC300 Service Repair Manual

Page 849 of 4087

LEXUS SC300 1991  Service Repair Manual 
(c)  Turn the defogger switch ON and check that the test bulb andindicator light turn ON, then turn OFF after about 15 minutes.
If operation is not as specified, replace the air conditioner control
p

Page 850 of 4087

LEXUS SC300 1991  Service Repair Manual 
(d)  Place the voltmeter positive (+) lead against the defoggerpositive (+) terminal.
(e) Place  the voltmeter negative (±) lead with the foil strip against
the heat wire at the positive (+) termina

Page 851 of 4087

LEXUS SC300 1991  Service Repair Manual 
INSPECTION OF MIRROR DEFOGGER
INSPECT MIRROR DEFOGGER
(a) Connect  the positive (+) lead from the battery to terminal 7 (4)
and the negative (±) lead to terminal 8 (5).
(b)  Check that the mirror be

Page 852 of 4087

LEXUS SC300 1991  Service Repair Manual 
(TAILLIGHT SYSTEM)
Description ± Taillight System
The component parts of this system and their function are as shown in the f\
ollowing table.
 Parts Name\


Page 853 of 4087

LEXUS SC300 1991  Service Repair Manual 
WIRING AND CONNECTOR DIAGRAMS ±
Taillight System
BE±54±
BODY ELECTRICAL SYSTEM Lighting System 
WhereEverybodyKnowsYourName

Page 854 of 4087

LEXUS SC300 1991  Service Repair Manual 
Parts Replacement ± Taillights
(Clearance Light)
REPLACEMENT OF CLEARANCE LIGHT
(See page BE±37)
HINT: Replacement of Headlight (LO±Beam).
(FRONT SIDE MARKER LIGHT)
REPLACEMENT OF FRONT SIDE
MARKE

Page 855 of 4087

LEXUS SC300 1991  Service Repair Manual 
(b) Remove the luggage compartment trim.
(c)Disconnect connector.
(d) Remove four nuts and rear combination light assembly.
2.  INSTALL REAR COMBINATION LIGHT ASSEMBLY Follow the removal procedure in

Page 856 of 4087

LEXUS SC300 1991  Service Repair Manual 
Parts Inspection ± Taillights
(Combination Switch Assembly)
(See page BE±46
HINT:     Inspect light control switch.
(Taillight Control Relay)
REMOVAL AND INSTALLATION OF
TAILLIGHT CONTROL RELAY
(Se