2003 Lexus GS 430FACTORY OEM SERVICE PROCEDURE

Component Locations

COMPONENT LOCATIONS

Component Location
Anti-Theft Horn Fig 1
Anti-Theft Indicator Fig 1
Body ECU No. 1 Fig 1 & Fig 3
Body ECU No. 2 Fig 2 & Fig 4
Brake Fluid Level Warning Switch Fig 2
Clock Fig 2
DOME Fuse Fig 3
Driver Buckle Switch Fig 2
ECU-B2 Fuse Fig 3
ECU-IG Fuse Fig 4
Fog Light Relay Fig 2
Front Personal Light Fig 2
Hazard Switch Fig 1
Hood Courtesy Switch Fig 1
Horn Fig 1
Key Unlock Warning Switch Fig 2
Lamp Failure Sensor Fig 2
Light Control Sensor Fig 2
Light Control Switch Fig 2
Luggage Courtesy Switch Fig 1
Luggage Door Key Lock & Unlock Switch Fig 1
Luggage Opener Motor Fig 1
Luggage Opener Switch Fig 1
Mirror Switch Fig 2
P FR DOOR Fuse Fig 5
Parking Brake Switch Fig 1
Passenger Buckle Switch Fig 1
Pattern Select Switch Fig 1
RADIO NO. 2 Fuse Fig 4
Seat Belt Warning Occupant Detection Sensor Fig 1
Stop Light Switch Fig 2
Wireless Door Lock Buzzer Fig 1
Wireless Door Lock Tuner Fig 1
Fig 1: Identifying Body ECU No. 1 Control System Component Locations
G00184945Courtesy of Β© TOYOTA, LICENSE AGREEMENT TMS1002
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  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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