Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / ABS with EBD system / Right/Left front speed sensor circuit / Circuit description
Toyota Corolla (E120): Circuit description
The speed sensor detects wheel speed and transmits the appropriate signals to the ecu. These signals are used for control of the abs control system. Each of the front and rear rotors has 48 serrations.
When the rotors rotate, the magnetic field generated by the permanent magnet in the speed sensor induces an ac voltage.
Since the frequency of this ac voltage changes in direct proportion to the speed of the rotor, the frequency is used by the ecu to detect the speed of each wheel.
Hint
: Dtc no. C0200/31 and c1235/35 is the right front speed sensor.
Dtc no. C0205/32 and c1236/36 is the left front speed sensor.
Wiring diagram
Other materials:
Selecting wheel set (vehicles
with a tire pressure
warning system)
Your vehicle is equipped with a
tire pressure warning system
with a function to register two
sets of ID codes. This allows for
registration of a second wheel
set, for example a winter set.
The wheel set can be changed
only if a second wheel set has
been registered to the system. If
a second wheel s ...
If a warning light turns on or a
warning buzzer sounds
Calmly perform the following actions if any of the warning
lights comes on or flashes. If a light comes on or flashes, but
then goes off, this does not necessarily indicate a malfunction
in the system. However, if this continues to occur, have the
vehicle inspected by your Toyota dealer.
Actions to ...
Outside rear view mirrors
The rear view mirror's position
can be adjusted to
enable sufficient confirmation
of the rear view.
■When using the outside rear
view mirrors in a cold weather
When it is cold and the outside rear
view mirrors are frozen, it may not
be possible to fold/extend them or
adjust the mirror surface. Rem ...