1994 Lexus GS 300FACTORY OEM SERVICE PROCEDURE

Control Units

CONTROL UNITS LOCATION

Component Location
ABS Control Unit Behind right side of dash, integral of TRAC ECU. See Figure.
A/C System Control Unit Behind center of console, integral of A/C control assembly.
Anti-Theft System Control Unit Behind left side of dash, above fuse/relay block. See Figure.
Cruise Control Control Unit Under center console. See Figure.
Engine Control Module (ECM) Below glove box, under carpet. See Figure & Figure .
Fuel Pump Control Unit On left side of luggage compartment, behind trim panel. See Figure.
Power Door Lock Control Unit Behind left side of dash, integral of anti-theft ECU.
Power Seat Control Unit Under driver's seat.
Power Steering Control Unit Behind left side of dash, near steering column. See Figure.
Shift Lock Control Unit Under center console, behind gear selector. See Figure.
Tilt/Telescopic Steering Column Control Unit Behind left side of dash, above steering column. See Figure.
TRAC System Control Unit Behind right side of dash. See Figure.
Wireless Door Lock Control Unit On right side of luggage compartment.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.