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08-78610-11
▶ Rain sensing operation point
The wiper relay is turned on and the wiper motor runs one cycle when the ignition key is
<009b009c00990095008c008b0047009b0096004702c80076007502c9004700970096009a0090009b0090009600950047004f009e008f00900093008c0047009b008f008c0047009e00900097008c00990047009a009e0090009b008a008f00470090009a00
4700900095004702c80068007c007b007602c9004700970096>sition).
The wiper relay (LO) is turned on and the wiper motor runs one cycle when changing the
<009e00900097008c00990047009a009e0090009b008a008f0047009b0096004702c80068007c007b007602c9004700970096009a0090009b0090009600950047008d00990096009400470088009500a000470096009b008f008c0099004700970096009a00
90009b009000960095009a0047004f009e008f00900093008c> the ignition key is in “ON”
<00970096009a0090009b009000960095005000550047007e008f008c00950047009b008f008c0047009e00900097008c00990047009a009e0090009b008a008f00470090009a0047009b009c00990095008c008b0047009b0096004702c80068007c007b00
7602c9004700970096009a0090009b00900096009500470088>gain from other positions, the
system drives the wiper relay (LO) to run the wiper motor one cycle only when the rain sensor
detects the “Rain Detected” signal. 1)
2)
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08-10
The wiper relay (LO) is turned on and the wiper motor runs one cycle when the wiper sensitivity is
changed to 2 from 3 during receiving the malfunction signal (1) from the rain sensor. However,
the wiper motor can be operated only when the rain sensor detects the "Rain Detected" signal. 1)
If the volume sensitivity is changed more than 2 stages within 2 seconds, the wiper motor
runs only one cycle. ▶ Defective rain sensor
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08-118610-11
The wiper relay (LO) is turned on and the wiper motor runs one cycle when the wiper
sensitivity is changed to 3 from 4 during receiving the malfunction signal (2) from the rain
sensor (while the ignition key is in “ON” position and the wiper switch is in “AUTO” position). 2)
The wiper relay (LO) is turned on and the wiper motor runs one cycle when the wiper sensitivity
is changed to 2 from 1 during receiving the malfunction signal (3) from the rain sensor (while
<009b008f008c00470090008e00950090009b00900096009500470092008c00a000470090009a004700900095004702c80076007502c9004700970096009a0090009b009000960095004700880095008b0047009b008f008c0047009e00900097008c009900
47009a009e0090009b008a008f00470090009a004700900095> “AUTO” position). Also, the wiper
relay (LO) is turned on and the wiper motor runs one cycle when the wiper sensitivity is
changed to 2 from 1 during receiving the ground fixed or IGN fixed signal from the rain sensor. 3)
Page 505 of 715

08-138610-11
4. FUNCTIONS OF RAIN SENSOR
1) Windshield Glass and Coupler Attachment
Check the outer windshield surface of sensing area for wear, damage and scratch. The sensor is
able to compensate the wear up to a specific level. Check the coupler attached surface of
windshield for porosity. If the porosity exists, the sensor cannot function properly.
2) Recognition of AUTO Mode
3) Instant Wipe Function
When the variable resistance knob on the multifunction wiper switch is turned by each 1 stage
from low sensitivity (Smark) to high sensitivity (F mark), the wiper operates one cycle.
And, the wiper also operates during raining up to 5 minutes after rain stops.When the engine is started with the wi
per switch “AUTO” position, the wiper operates one cycle
<009b009600470099008c009400900095008b004700880047008b00990090009d008c00990047009b008f0088009b0047009b008f008c0047009e00900097008c00990047009a009e0090009b008a008f00470090009a004700900095004702c80068007c00
7b007602c9004700970096009a0090009b0090009600950055>
<007e008f008c00950047009b008f008c0047009e00900097008c00990047009a009e0090009b008a008f00470090009a0047009b009c00990095008c008b0047009b0096004702c80068007c007b007602c90047008d00990096009400470076006d006d00
530047009b008f008c0047009e00900097008c009900470096>perates one cycle. It always
operates one cycle for the initial operation, however, the wiper does not operate afterwards to
<00970099008c009d008c0095009b0047009b008f008c0047009e00900097008c00990047008900930088008b008c0047009e008c0088009900470090008d004700950096009b0047009900880090009500900095008e0047009e008f008c00950047009b00
9c0099009500900095008e0047009b008f008c0047009e0090>per switch to “AUTO” from
<02c80076006d006d02c900550047006f0096009e008c009d008c009900530047009b008f008c0047009e00900097008c0099004700960097008c00990088009b008c009a0047009c00970047009b00960047005c0047009400900095009c009b008c009a00
470088008d009b008c0099004700990088009000950047009a>tops.
If this function does not occur, check No. 2 terminal on the rain sensor. If any defective cannot
be found, check the wiper relay (LOW) for defective. 1.
2.
3.If the installed wiper brushes are out of specification (size and length), the rain sensing area
<008a0088009500950096009b00470089008c0047008d009c0093009300a00047009e00900097008c008b005500470047007000950047009b008f0090009a0047008a0088009a008c00530047009b008f008c004700990088009000950047009a008c009500
9a0096009902c5009a0047009a008c0095009a0090009b0090>vity could be decreased and the
wipers are not properly operated - The followings are the detailed description of the functions and operations of the rain sensing
wiper control.
<0068009a0047008b008c009a008a009900900089008c008b00530047009b008f008c0047007a007b0070006a007a00470099008c008a0096008e0095009000a1008c009a0047009b008f008c0047009e00900097008c00990047009a009e0090009b008a00
8f004702c80068007c007b007602c9004700970096009a0090>tion. If there are not any
problem, go to diagnosis mode in STICS and check the terminal that receives signal from
wiper and communication lines between rain sensor unit and STICS. -
When the variable resistance knob is rotated by 4 stage from 0 stage without stoping, the
wiper operates one cycle. The wiper operates one cycle when changing the wiping stage (0
→ 1, 1 → 2, 2 → 3). -
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08-14
4) Washer Coupled Wiper Function
Check the washer coupled wiper operation by pressing the washer switch.
5) Irregular Operations (Abrupt Operations)
6) Self Diagnosis
Position the wiper switch to “AUTO” position and rotate the variable resistance knob from “FAST”
toward “SLOW” by one step.
At this moment, check if the wiper operates one cycle.
The wiper operates when the windshield glass is excessively worn or scratched, the windshield
glass is not cleared wiped due to using worn wiper blade or different wiper blade, or the rain
sensor is not improperly installed.Check the sensor for coming off.
Check the rain sensor cover installation.
Check that the customer is familiar to how to control the wiper sensitivity. -
-
-
If the wiper blade cannot wipe the glass uniformly and clearly, the irregular operations could be
occurred. And, the wiper blade should be replaced with new one with same specifications. Check that the customer can select the sensitivity by selecting the variable resistance value
(stage 1 to stage 5), that is, the wiper sensitivity control value. And, also check whether the
sensitivity is selected to the highest value of FAST (stage 5).
Check the wiper blade for wear. -
▶Poor sensing
▶Poor sensor
Rotate the variable resistance knob toward “SLOW” by 2 more steps. At this moment, check if
the wiper operates one cycle.
The wiper operates when the sensor is defective.
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08-16
6. RAIN SENSOR RELATED CIRCUIT
The rain sensor has one connector with 4 pins and each pin has following function as shown in
the circuit diagram.
However, in this vehicle, the terminal No. 1 and No. 2 are for communications between STIC
S
and the rain sensor; the No. 1 terminal sends the detected value from the rain sensor to STICS
then the STICS drives wiper motor.
to the rain sensor to recognize whether it is actual rain or it is in rain sensing wiper operation
mode.
No.2 terminal sends the wiper and washer operation information such as
washer operation mode,
MIST mode, or
AUTO wiper position -
-
-
Page 510 of 715
09-38790-01
1. SPECIFICATIONS
1) Parking Aid Unit
Detecting type :
Detecting distance : Ultrasonic wave
Description Specification
Rated voltage DC 12V
Operating voltage DC 9V ~ 16V
Current consumption Unit below 100 mA
Sensor below 20 mA (for each sensor)
Sensor insulating resistanceover 5 MΩ
Operating temperature-30˚C ~ +80˚C
Storage temperature-40˚C ~ +85˚C
Relative humidity 95% RH max
Weight Unit160g ± 10g max
Sensor70g ± 10g max
25 ~ 120 cm (distance
between sensor and
obstacle)
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09-4
2) Parking Aid Sensor
Type: Piezo ceramic element
Frequency: 40 kHz ± 2 kHz
Detecting range (13.5 V) -
-
-
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47005c0057004700b70047005c0047008a0094>
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4700b70047005c0047008a0094>