deployed. For complete Air Bag Safety precautions see AIR
BAGS article in ACCESSORIES/SAFETY EQUIPMENT Section.
BUZZERS, RELAYS & TIMERS
----------------------------------------------------------------------
Component Component Location
----------------------------------------------------------------------
ABS
Actuator Relay In ABS/TRAC relay block, on
left side of firewall.
Motor Relay In ABS/TRAC relay block, on
left side of firewall.
A/C Clutch Relay In engine compartment
fuse/relay block.
Auto. Antenna Motor Relay On antenna motor, on left side
of luggage compartment.
PDF created with FinePrint pdfFactory trial version
http://www.pdffactory.com ELECTRICAL COMPONENT LOCATORArticle Text (p. 2)
1992 Lexus SC 400For Lextreme Powertrain 2020 S. Hacienda Blvd. # D Hacienda Heights California 91745
Cellular Phone Speaker Relay In left side of luggage
compartment, near transceiver.
Cornering Light Relay In passenger compartment
fuse/relay block.
Defogger Relay In engine compartment
fuse/relay block.
Dimmer Relay In engine compartment
fuse/relay block.
EFI Relay In engine compartment
fuse/relay block.
Headlight Relay In engine compartment
fuse/relay block.
Heater Relay In engine compartment
fuse/relay block.
PDF created with FinePrint pdfFactory trial version
http://www.pdffactory.com ELECTRICAL COMPONENT LOCATOR
Horn Relay In passenger compartment
fuse/relay block.
Integration Relay In passenger compartment
fuse/relay block.
Power Window Main Relay In passenger compartment
fuse/relay block.
Seat Heater Relay In passenger compartment
fuse/relay block.
Starter Relay In engine compartment
fuse/relay block.
Sun Roof Control Relay On left of sun roof control
switch.
Taillight Control Relay In passenger compartment
fuse/relay block.
TRAC System
PDF created with FinePrint pdfFactory trial version
http://www.pdffactory.com ELECTRICAL COMPONENT LOCATORArticle Text (p. 4)
1992 Lexus SC 400For Lextreme Powertrain 2020 S. Hacienda Blvd. # D Hacienda Heights California 91745
Main Relay In ABS/TRAC relay block, on
left side of firewall.
Motor Relay In ABS/TRAC relay block, on
left side of firewall.
Turn Signal/Hazard Flasher Relay In passenger compartment
fuse/relay block.
----------------------------------------------------------------------
CIRCUIT PROTECTION DEVICES
----------------------------------------------------------------------
Component Component Location
----------------------------------------------------------------------
Fuse/Relay Blocks
Engine Compartment On left front of engine
compartment, behind battery.
Passenger Compartment Behind left kick panel.
Relay Block (ABS & TRAC) On left side of firewall.
----------------------------------------------------------------------
CONTROL UNITS
----------------------------------------------------------------------
Component Component Location
PDF created with FinePrint pdfFactory trial version
http://www.pdffactory.com ELECTRICAL COMPONENT LOCATOR
----------------------------------------------------------------------
ABS ECU Under left front floorboard.
A/C Control Unit Behind A/C control panel.
Anti-Theft/Door Lock ECU Behind instrument cluster.
PDF created with FinePrint pdfFactory trial version
http://www.pdffactory.com ELECTRICAL COMPONENT LOCATORArticle Text (p. 6)
1992 Lexus SC 400For Lextreme Powertrain 2020 S. Hacienda Blvd. # D Hacienda Heights California 91745
Cooling Fan ECU (SC400) Under right side of dash,
behind glove compartment.
Cruise Control ECU Behind left side of dash.
PDF created with FinePrint pdfFactory trial version
http://www.pdffactory.com ELECTRICAL COMPONENT LOCATORArticle Text (p. 7)
1992 Lexus SC 400For Lextreme Powertrain 2020 S. Hacienda Blvd. # D Hacienda Heights California 91745
Elec. Controlled Trans. (ECT) ECUUnder left front floorboard.
Engine ECU
View of Dash Under left front floorboard.
PDF created with FinePrint pdfFactory trial version
http://www.pdffactory.com ELECTRICAL COMPONENT LOCATORArticle Text (p. 8)
1992 Lexus SC 400For Lextreme Powertrain 2020 S. Hacienda Blvd. # D Hacienda Heights California 91745
Harness Layout Under left front floorboard.
Fuel Pump ECU
Location of Control Units Behind left rear quarter
panel.
PDF created with FinePrint pdfFactory trial version
http://www.pdffactory.com ELECTRICAL COMPONENT LOCATORArticle Text (p. 9)
1992 Lexus SC 400For Lextreme Powertrain 2020 S. Hacienda Blvd. # D Hacienda Heights California 91745
Harness Layout Behind left rear quarter
panel.
Power Seat ECU
Driver Seat Under driver's seat.
PDF created with FinePrint pdfFactory trial version
http://www.pdffactory.com ELECTRICAL COMPONENT LOCATORArticle Text (p. 10)
1992 Lexus SC 400For Lextreme Powertrain 2020 S. Hacienda Blvd. # D Hacienda Heights California 91745
Passenger Seat Under front passenger's seat.
Progressive Power
Steering (PPS) ECU Under right side of dash.
PDF created with FinePrint pdfFactory trial version
http://www.pdffactory.com ELECTRICAL COMPONENT LOCATORArticle Text (p. 11)
1992 Lexus SC 400For Lextreme Powertrain 2020 S. Hacienda Blvd. # D Hacienda Heights California 91745
Remote Control Mirror ECU Behind left center of dash.
Shift Lock Control ECU
View of Dash Under center console, left of
shifter.
PDF created with FinePrint pdfFactory trial version
http://www.pdffactory.com ELECTRICAL COMPONENT LOCATORArticle Text (p. 12)
1992 Lexus SC 400For Lextreme Powertrain 2020 S. Hacienda Blvd. # D Hacienda Heights California 91745
View of Dash From Passenger SideUnder center console, left of
shifter.
Tilt & Power Telescopic
Steering Column ECU Behind left side of dash.
PDF created with FinePrint pdfFactory trial version
http://www.pdffactory.com ELECTRICAL COMPONENT LOCATORArticle Text (p. 13)
1992 Lexus SC 400For Lextreme Powertrain 2020 S. Hacienda Blvd. # D Hacienda Heights California 91745
Traction Control
System (TRAC) ECU Behind right side of dash.
Wireless Door Lock ECU Behind right rear quarter
panel, below window.
----------------------------------------------------------------------
PDF created with FinePrint pdfFactory trial version
http://www.pdffactory.com ELECTRICAL COMPONENT LOCATOR
MOTORS
----------------------------------------------------------------------
Component Component Location
----------------------------------------------------------------------
A/C-Heater System
Air Inlet Servomotor Under right side of dash, on
blower motor housing.
PDF created with FinePrint pdfFactory trial version
http://www.pdffactory.com ELECTRICAL COMPONENT LOCATORArticle Text (p. 15)
1992 Lexus SC 400For Lextreme Powertrain 2020 S. Hacienda Blvd. # D Hacienda Heights California 91745
Air Mix Servomotor Behind right side of center
console, behind heater case.
PDF created with FinePrint pdfFactory trial version
http://www.pdffactory.com ELECTRICAL COMPONENT LOCATORArticle Text (p. 16)
1992 Lexus SC 400For Lextreme Powertrain 2020 S. Hacienda Blvd. # D Hacienda Heights California 91745
Air Outlet Servomotor Behind right side of center
console, near aspirator.
PDF created with FinePrint pdfFactory trial version
http:/