Lexus GS300 & GS430

WARNING: This page is about a different variant/trim than selected.

Disconnect the solenoid connector. Using an ohmmeter, measure the resistance between terminals. See Fig 1. Resistance should be 12-17 ohms. If resistance value is not as specified, replace the solenoid. See KEY INTERLOCK SOLENOID under REMOVAL & INSTALLATION.
Momentarily supply battery positive voltage and ground at terminals. See Fig 2. Ensure an operating noise can be heard from the solenoid. If the solenoid does not operated, replace the solenoid. See KEY INTERLOCK SOLENOID under REMOVAL & INSTALLATION.

Fig 1: Measuring Resistance Of Key Interlock Solenoid (Lexus GS300 & GS430)

Fig 2: Testing Operation Of Key Interlock Solenoid (Lexus GS300 & GS430)