Shift Lock System: Inspection

WARNING: This page is about a different car, the 2007 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT KEY INTERLOCK SOLENOID
1. Disconnect the solenoid connector.
  
  Fig 1: Identifying Shift Lock Control ECU Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Connect the battery's positive (+) lead to terminal 4 (KLS+) and the battery's negative (-) lead to terminal 3 (KLS-). Check that the operating noise of the solenoid can be heard.
  If the result is not as specified, replace the solenoid.
  
  Fig 2: Identifying (KLS+) And (KLS-) Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002