SSANGYONG 2004 Rexton 2.7XDi Workshop Manual page 1229

(4) Pressure sensor
a. The pressure sensor senses the driver's braking
intentions (braking while an ESP intervention is in
progress) and controls the precharging pressure.
b. The sensor consists of two ceramic disks, one of which
is stationary and the other movable. The distance
between these disks changes when pressure is applied.
c. The pressure sensors operate on the principle of changing
capacitance (a).
The distance (s) between the disks and, thus, the
capacitance changes when pressure is applied to the
movable disk by a braking intervention.
d. When brake pressure is applied from the master cylinder,
the ceramic disk moves towards the fixed ceramic disk
and the electric charge volume changes accordingly.
ESP SYSTEM
REXTON SM - 2004.4
8E2-31
Y220_8E2040
Y220_8E2041
Brake not
applied
Y220_8E2042
Brake
applied
Y220_8E2043
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN