LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 1994 >> LS 400 >> Repair and Diagnosis >> Quick Lookups >> 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 Behind right side of dash. See Figure & Figure .
A/C Control Assembly Behind center of console, integral of A/C control assembly. See Figure & Figure .
Anti-Theft ECU Behind left side of dash, above fuse/relay block. See Figure & Figure .
Coolant Level Warning ECU Behind left side of dash, left of steering column. See Figure.
Cruise Control ECU Behind left side of dash. See Figure & Figure .
Elect. Side Mirrors ECU Behind right side of dash. See Figure & Figure .
Electronic Modulated Air Suspension ECU In right rear corner of luggage compartment. See Figure.
Engine ECU Behind right side of dash. See Figure, Figure & Figure .
Power Door Lock ECU Behind left side of dash, integral of anti-theft ECU. See Figure & Figure .
Power Seat ECU Under driver's seat. See Figure.
Progressive Power Steering ECU Behind center of dash. See Figure & Figure .
Shift Lock ECU Under center console, on base of gear selector. See Figure & Figure .
Tilt & Telescopic Steering Column ECU Behind left side of dash, above steering column. See Figure & Figure .
TRAC ECU Behind right side of dash, integral of ABS ECU. See Figure & Figure .
Transmission ECU Behind right side of dash, integral with engine ECU. See Figure, Figure & Figure .
Wireless Door Lock Control Unit In left side of luggage compartment.