1991 LEXUS SC400 Service Repair Manual

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LEXUS SC400 1991  Service Repair Manual 
REAR DIFFERENTIAL
DESCRIPTION
SA091±07
The differential has an 8 inch ring gear to ensure accurate operation at high p\
ower output and high speed.
The differential is carried by a rear suspension m

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LEXUS SC400 1991  Service Repair Manual 
PREPARATION
SST (SPECIAL SERVICE TOOLS)
SA092±02
±
SUSPENSION AND AXLE REAR DIFFERENTIALSA±75 
WhereEverybodyKnowsYourName

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LEXUS SC400 1991  Service Repair Manual 
SA±76±
SUSPENSION AND AXLE REAR DIFFERENTIAL 
WhereEverybodyKnowsYourName

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LEXUS SC400 1991  Service Repair Manual 
RECOMMENDED TOOLS
SA093±02
EQUIPMENT
SA094±01\
 
\

\
Dial indicator with magnetic base 



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LEXUS SC400 1991  Service Repair Manual 
SSM (SPECIAL SERVICE MATERIALS)
SA095±04\
 
\


\


\

\

08826±00110

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LEXUS SC400 1991  Service Repair Manual 
ON±VEHICLE REPAIR
COMPONENTS
SA097±02
SIDE GEAR SHAFT OIL SEAL
REPLACEMENT
SA0V1±04
1.  DRAIN DIFFERENTIAL OIL
2.  REMOVE REAR DRIVE SHAFT(See page  SA±65)
3.  REMOVE SIDE GEAR SHAFT
(a)  Using S

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LEXUS SC400 1991  Service Repair Manual 
5.  INSTALL SIDE GEAR SHAFT OIL SEAL
(a)  Using SST and a hammer, drive in a new oil seal.SST 09608±32010, 09608±35014 (09608±06020)
(b)  Apply MP grease to the oil seal lip.
6.  INSTALL SIDE GEAR

Page 3344 of 4087

LEXUS SC400 1991  Service Repair Manual 
ECU Power Source Circuit
CIRCUIT DESCRIPTION
When the ignition switch is turned on, battery voltage
is applied to the terminal IG SW of the ECU, and the
main relay control circuit in the ECU sends a