Removal & Installation (GS300 & GS430)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 Lexus SC 430, 2003 Lexus RX 300, 2003 Lexus LX 470, 2003 Lexus LS 430, and 2003 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
Fuel pump ECU is located on left side of luggage compartment. See Fig 1. Remove luggage compartment trim cover. Disconnect electrical connector at fuel pump ECU. Remove bolt and fuel pump ECU. To install, reverse removal procedure.