SSANGYONG Rexton Y200 Manual page 1575

If the ignition switch is off and if wiper switch is
set on any position, turn ignition switch on, the
instant operation of wiper is occurred, signal to
driver beginning of wiper operating, due to lack of
rain drop, if wiper is not operated, rain sensor stay
on the automatic intermittent mode.
Check unit of rain sensor
Check selection of sensing (check position of nob
of variable resistent)
Check if variable resistent nob of multifunction switch
is positioned in the middle of between S of position
and F of position, if nob is positioned F (fast) or S
(slow),sensing is much higher or much lower, so
customer can complain this.
Self - diagnosis
1. Rain sensor has two kind of self diagnosis test
mode.
1) Self diagnosis of FAULT A
In case operating point of rain sensor servo is
beyond range of soft ware, that means sensor
has a fault, if part of wind shield glass has a
damage, or if sensor is removed from the
coupler.
2) Self diagnosis of FAULT B
While rain sensor does not reaction with signal
of rain, that means FAULT B, if wind shield glass
which is equipped coupler has a damage or
sensor is out of order.
2. Value of cohesion
While FAULT A is sensed, the cohesion is decided,
the value of cohesion is 140,in this case, except
heavily damage of wind shield glass, rain sensor
is operating in the all conditions.
3. Failure which is occurred with adjustment of
intermittent volume
Due to adjustment of sensing and motion of wiper,
self diagnosis is described as below.
1) Wiper switch is transferred the intermittent into
5 step stage, under the state of " ignition on "
2) Under this state, sensing is changed 5 step
stage into 4 step stage.
3) At this time, wiper is moving once, that means
self diagnosis of FAULT A, check if wind shield
glass has a damage or not, also check if sensor
is installed completely on the coupler.
4) After check 3) article, sensing is changed 4 step
stage into 3 step stage.
5) If wiper is operating once, this means self
diagnosis of FAULT OF B.
Replace new rain sensor.
SSANGYONG Y200
BODY ELECTRICAL 9D-47
Wiper blade
Check the state of wear of wiper blade, due to
excessive wear of wiper blade, if is not cleaned up
over section of sensor, quantity of rain is not sensed
accurately.
Coupler
Check if blister is shaped on the external section of
coupler which is stuck on the wind shield.
If there is a blister in the internal section of sensor, is
not sensed accurately, check if coupler is installed
the right position or not, specially check if section of
coupler sensor is positioned on the section of ceramic
coating or not, if the space of sensing is shielded,
infrared of sensor is not passed so sensing is not
available accurately.
Wind shield glass
Check if wind shield glass surface of the external
sensor has excessive wear,damage, and scratch or
not. Wear of sensor is compensated little bit, if there
come to beyond constant value, sensor is not sensing,
such a kind of diagnosis is used self diagnosis.
Exterior cover
Check the state of exterior cover of rain sensor, check
that sensor is impacted by shaking, owing to releasing
fixing section of cover, also check interference with
wind shield glass or head lining.
Spring clip
Check if rain sensor release from coupler or not, after
removing exterior cover, check the state of spring clip.
Connector
After check the state of tighting between terminal of
connector and wiring, check that the terminal is inserted
into connector as the state of locking. Check the state
of combination between the connector of wiring and
the connector of rain sensor, check interference between
them.
Relay
Check if low relay of wiper and high relay of wiper is
operating normally, as relay is damaged by fire so
motor of wiper is not operated, at the auto mode, blade
of wiper is not operated.
Circuit
Check circuit, specially check if the value of variable
resistence of multifunction switch is feeding properly
or not, this can see by moving nob of variable
resistence step by step from the state of slow to the
state of fast (This is called Instant Wipe ).