Brakelight Signal (Avalon, Camry, Camry Solara 2.4L 4-Cyl., Camry Solara 3.0L V6 With A/T, Celica With A/T, Corolla With 4-Speed A/T, ECHO With A/T, Highlander, Land Cruiser, Matrix With A/T, MR2, RAV4, Sequoia, Sienna, Tacoma, Tundra With A/T & 4Runner)
WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 2003 Toyota Tundra, 2003 Toyota Tacoma, 2003 Toyota Sienna, 2003 Toyota Sequoia, and 2003 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
Brakelight switch delivers an input signal to STP terminal of Engine Control Module (ECM) to indicate when brakes are applied. Input signal is mainly used for controlling fuel cut-off engine speed, as fuel cut-off engine speed is slightly reduced when brakes are applied. Brakelight switch may also be referred to as stoplight switch.