Section 452 (Fuel Lid Opener System): Inspection

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT FUEL LID OPENER SWITCH CONTINUITY
1. Check the continuity exists between terminals with the switch ON.
2. Check that no continuity exists between terminals with the switch OFF.
  If continuity is not as specified, replace the switch assembly.
  
  Fig 1: Identifying Fuel Lid Opener Switch Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT FUEL LID OPENER MOTOR OPERATION
1. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1.
2. Check that the motor operates in the open direction.
  If operation is not as specified, replace the motor.
  
  Fig 2: Inspecting Fuel Lid Opener Motor Operation
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002