Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Sfi system / Stop light switch circuit / Circuit description
Toyota Corolla (E120): Circuit description
This signal is used to detect that the brakes have been applied. The stp signal voltage is the same as the one supplied to the stop lights.
The stp signal is used mainly to control the fuel cut–off engine speed (the fuel cut–off engine speed is reduced slightly when the vehicle is braking.).
Wiring diagram

Other materials:
Things you should know
■ If you notice any symptoms
If you notice any of the following symptoms, refer to the likely cause and the
solution, and re-check.
If the symptom is not resolved by the solution, have the vehicle inspected by
your Toyota dealer.
CAUTION
■When using the rear view monitor system ...
Fastening and releasing
the seat belt
To fasten the seat belt, push
the plate into the buckle until
a click sound is heard.
To release the seat belt,
press the release button A.
■Emergency locking retractor
(ELR)
The retractor will lock the belt during
a sudden stop or on impact. It may
also lock if you lean forward too
quickl ...
Taking out the spare tire
1 Remove the luggage floor cover.
2 Remove the tool tray.
3 Loosen the center fastener that secures the spare tire.
CAUTION
■When storing the spare tire
Be careful not to catch fingers or other body parts between the spare tire and
the body of the vehicle. ...


