LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 1992 >> SC 400 >> Repair and Diagnosis >> Electrical >> Component Locations >> Electrical Component Locator >> Control Units
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Control Units

CONTROL UNITS LOCATION

Component Location
ABS ECU Under left front floorboard. See Figure.
A/C Control Unit Behind A/C control panel.
Anti-Theft/Door Lock ECU Behind instrument cluster. See Figure.
Cooling Fan ECU (SC400) Under right side of dash, behind glove compartment. See Figure.
Cruise Control ECU Behind left side of dash. See Figure.
Elec. Controlled Trans. (ECT) ECU Under left front floorboard. See Figure.
Engine ECU
View of Dash Under left front floorboard. See Figure.
Harness Layout Under left front floorboard. See Figure.
Fuel Pump ECU
Location of Control Units Behind left rear quarter panel. See Figure.
Harness Layout Behind left rear quarter panel. See Figure.
Power Seat ECU
Driver Seat Under driver's seat. See Figure.
Passenger Seat Under front passenger's seat. See Figure.
Progressive Power Steering (PPS) ECU Under right side of dash. See Figure.
Remote Control Mirror ECU Behind left center of dash. See Figure.
Shift Lock Control ECU
View of Dash Under center console, left of shifter. See Figure.
View of Dash From Passenger Side Under center console, left of shifter. See Figure.
Tilt & Power Telescopic Steering Column ECU Behind left side of dash. See Figure.
Traction Control System (TRAC) ECU Behind right side of dash. See Figure.
Wireless Door Lock ECU Behind right rear quarter panel, below window. See Figure.