Stop Light Switch
WARNING: This page is about a different car, the 2002 Toyota Land Cruiser, 2002 Lexus LX 470, 2001 Toyota Land Cruiser, and 2001 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
Disconnect electrical connector from stop light switch, located near brake pedal. Using ohmmeter, ensure continuity exists between switch terminals No. 1 and 2 with brake pedal depressed. Continuity should exist between terminals No. 3 and 4 with pedal released. See Fig 1.