1991 LEXUS SC400 Service Repair Manual

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Page 537 of 4087

LEXUS SC400 1991 Service Repair Manual
2. INSPECT BRAKE WARNING LIGHT(a) Disconnect the connector from the brake fluid warningswitch.
(b) Release the parking brake pedal.
(c) Connect terminals on the wire harness side of the level wa

Page 538 of 4087

LEXUS SC400 1991 Service Repair Manual
( Coolant Level Warning Switch)
REMOVAL AND INSTALLATION OF COOLANT
LEVEL WARNING SWITCH
1. REMOVE COOLANT LEVEL WARNING SWITCH(a) Disconnect the connector.
(b) Remove the boot.
(c) Using the not

Page 539 of 4087

$LEXUS SC400 1991 Service Repair Manual POWER WINDOW CONTROL SYSTEM Description The Power Window System raises and lowers the window glass in each door usi\ ng electrical power. The compo- nent parts of this system and their functions are$

Page 540 of 4087

LEXUS SC400 1991 Service Repair Manual
Wiring and Connector Diagrams
BE±148±
BODY ELECTRICAL SYSTEM Power Window Control System
WhereEverybodyKnowsYourName

Page 541 of 4087

LEXUS SC400 1991 Service Repair Manual
Parts Inspection
(Power Window Master Switch)
REMOVAL AND INSTALLATION OF
POWER WINDOW MASTER SWITCH
(See page BO±33)
INSPECTION OF POWER WINDOW
MASTER SWITCH
INSPECT POWER WINDOW MASTER SWITCH
(Con

Page 542 of 4087

LEXUS SC400 1991 Service Repair Manual
(c) Set the window lock switch to the lock position, checkthat all the passengers power window switch
illuminations go out.
If operation is not as specified, replace the master switch.
(One Touch P

Page 543 of 4087

LEXUS SC400 1991 Service Repair Manual
(Switch Circuit)
Disconnect the connector from the master switch and inspect
the connector on the wire harness side as shown.
Check forTester connectionConditionSpecified value
Voltage9±GroundIgnit

Page 544 of 4087

LEXUS SC400 1991 Service Repair Manual
(Power Window Main Relay)
REMOVAL AND INSTALLATION OF
POWER WINDOW MAIN RELAY
(See page BE±16)
INSPECTION OF POWER WINDOW MAIN
RELAY
INSPECT POWER WINDOW MAIN RELAY
(Continuity)
Inspect relay contin

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