Power Window Switch Illumination (Passenger)
WARNING: This page is about a different car, the 2002 Lexus GS 430 and 2002 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
Connect the positive (+) lead from the battery to terminal No. 3 and the negative (-) lead to terminal No. 2, and check that the indicator light lights up. See CONNECTOR IDENTIFICATION . If the operation is not as specified, replace the switch. See POWER WINDOW MASTER SWITCH under REMOVAL & INSTALLATION.