Wheel Speed Sensor; Stop Light Switch - Mitsubishi Eclipse Technical Information Manual

WHEEL SPEED SENSOR

The wheel speed sensor is a type of pulse generator
consisting of a rotor rotating at the same soeed
as the wheel and a speed sensor secured to the
knuckle.
For a front wheel, the rotor (43 teeth) is mounted
l
on the front drive shaft and the speed sensor
mounted on the knuckle.
FRONT
Knuckle ,
Drive shaft

Stop light switch

To stop light
, ,
sensor
STOP LIGHT SWITCH
The signal from the stop light switch is input to the ABS-ECU
as a brake pedal movement signal.
When the brake pedal is depressed, the stop light switch circuit
contact closes (ON), and when the brake pedal is released,
it opens (OFF). When the contact is closed, the output voltage
is at the battery voltage level (HIGH), and when it is opened,
the output voltage is at about 0 V (LOW).
A B S <FWB>
For a rear wheel, the rotor (43 teeth) is mounted
l
on the rear hub, and the speed sensor mounted
on the knuckle.
For both front and rear wheels, the spacing
l
between the sensor and rotor is adjustment-free.
REAR
Knuckle
Rear hub
sensor