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). -
Page 506 of 715

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.
Page 507 of 715
08-158610-11
5. DIAGNOSIS PROCEDURES
Page 508 of 715
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 509 of 715
08-178610-11
7. RAIN SENSING WIPER
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)
Page 511 of 715
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>
<00510047007d008c0099009b0090008a0088009300610047007400900095005500470059005700b600470088009b0047005800580057004700b70047005c0047008a00940053004700740090009500550047005d005700b600470088009b0047005c005700
4700b70047005c0047008a0094>
Page 512 of 715

09-58790-01
2. CAUTIONS
The parking aid system is just a supplemental device to help your parking.
Always keep the safety precautions.
Do not press or shock the sensors by hitting or using a high-pressure water gun while
washing, since it may damage the sensors.
If the system is in normal operating condition, a short beep sounds when the shift lever is
moved into "R" position with the ignition key "ON".
If the system is defective, the warning buzzer sounds for 3 seconds when moving the gear
<009a008f0090008d009b00470093008c009d008c00990047009b0096004702c8007902c9004700970096009a0090009b0090009600950047009e0090009b008f0047009b008f008c00470090008e00950090009b0090009600950047007600750055004700
69008c0047008a00880099008c008d009c0093004700950096>t to confuse this and the parking
aid alarm (in 50 cm). 1.
2.
3.
4.
5.
· Note that the display does not show everything in the rear area. Always check
nobody, especially animals and children, is behind the vehicle when parking or
reversing.
· If you can not properly check the vehicle behind, get out of the vehicle and then
visually check it.
The parking aid system will not work or improperly work under following cases: ▶
1) Certain obstacles that sensors can not detect
Thin and narrow objects, such as wires, ropes, chains
Cotton, sponge, clothes, snow; that absorb ultrasonic waves
Obstacles lower than the bumper (ex. drain ditch or mud puddle) -
-
-
2) Not defective but improperly working
When the sensing portion is frozen (operates normally after thawed)
When the sensing portion is covered by rain, water drops, snow or mud (operates normally
after cleaned)
When receiving other ultrasonic signals (metal sound or air braking noises from heavy
commercial vehicles)
When a high-power radio is turned on -
-
-
-
3) Narrowed sensing area
When the sensing portion is partially covered by snow or mud (operates normally after cleaned)
<007a009c009900990096009c0095008b00900095008e0047009b008c00940097008c00990088009b009c0099008c00470096008d0047009a008c0095009a0096009900470090009a0047009b009600960047008f0090008e008f0047004f00880097009700
990096009f005500470096009d008c00990047005f005700b6>C) or too low
(approx. below -30°C) -
-
4) Not defective but may cause malfunction
When driving on the rough roads, gravel road, hill and grass
When the bumper height is changed due to heavy load
When the sensing portion is frozen
When the sensing portion is covered by rain, water drops, snow or mud
When receiving other ultrasonic signals (metal sound or air braking noises from heavy
commercial vehicles)
When a high-power radio is turned on
When some accessories are attached in detecting ranges -
-
-
-
-
-
-