Wireless Door Lock Buzzer
WARNING: This page is about a different car, the 2003 Lexus RX 300 and 2002 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.
Inspect the wireless door lock buzzer operation. Connect the positive (+) lead from the ohmmeter to terminal 1 and the negative (-) lead to terminal 2, and measure resistance of approximately 1000 ohms. See CONNECTOR IDENTIFICATION . If resistance is not as specified, replace the buzzer.