SsangYong Stavic / SsangYong Rodius (2005 year). Manual — part 235
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
RAIN SENSING WIPER
STAVIC - 2004.09
5
2D
3. 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 STICS and the rain sensor; the
No. 1 terminal sends the detected value from the rain sensor to STICS then the STICS drives wiper motor.
No.2 terminal sends the wiper and washer operation information such as
- washer operation mode,
- MIST mode, or
- AUTO wiper position
to the rain sensor to recognize whether it is actual rain or it is in rain sensing wiper operation mode.
Multifunction switch
Wiper relay
(HI)
Wiper
relay (LO)
Rain sensor unit
Wiper
motor
Washer motor
STICS
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
RAIN SENSING WIPER
STAVIC - 2004.09
6
2D
As long as the switch is in MIST position, the wiper motor operates in
low speed. The wiper blade returns to parking position if the switch
returns to the original position. The rain sensor ignores inputs during
parking signal periods.
The wiper motor rotates in low speed until it returns to parking position.
When the system is in manual mode, the sensitivity of sensor will be
set to 2 (AUTO 2) internally. By doing so, immediate wiping with proper
intervals is possible when a driver sets the system from OFF to AUTO.
Auto delay/auto speed control. Low sensitivity against rains on
windshield. When the switch is in AUTO position, the sensor trans-
mits the wiping request signal to STICS.
Auto delay/auto speed control.
Low/medium sensitivity against rains on windshield.
Auto delay/auto speed control.
Medium sensitivity against rains on windshield.
Auto delay/auto speed control.
Medium/high sensitivity against rains on windshield.
Auto delay/auto speed control.
High sensitivity against rains on windshield.
The wiper motor rotates continuously in low speed of approx. 45 rev./
minute at B+=13.5V. The rain sensor operations are same as in MIST.
The wiper motor rotates continuously in high speed of approx. 70 rev./
minute at B+=13.5V. The rain sensor operations are same as in MIST.
The washer can be operated as long as the washer switch is pressed.
And, the wiper operates several times as specified. When releasing
the washer switch, the wiper returns back to the parking position. The
STICS transmits the washer signal during its whole washing period
(including dry wiping operation). The rain sensor ignores the rain de-
tection during the washing period.
MIST (Transmits the manual operation
mode signal to sensor)
OFF (Transmits the manual operation
mode signal to sensor)
AUTO 1
(Low sensitivity)
AUTO 2
(Low/medium sensitivity)
AUTO 3
(Medium sensitivity)
AUTO 4
(Medium/High sensitivity)
AUTO 5
(High sensitivity)
LOW SPEED (transmits the manual
operation mode signal to sensor)
HI SPEED (transmits the manual operation
mode signal to sensor)
Washer switch
Switch positions
4. OPERATION MODE OF RAIN SENSING WIPER SYSTEM
Operation mode
SLOW
FAST
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
RAIN SENSING WIPER
STAVIC - 2004.09
9
2D
6. DIAGNOSIS PROCEDURES
1. Check the glass and coupler for proper installation.
2. Check the power up function.
3. Check the instant wipe function.
4. Check the washer coupled wiper function.
5. Check the high speed.
6. Find the causes for irregular operations (abrupt operations).
7. Check the system with self-diagnosis function.
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
RAIN SENSING WIPER
STAVIC - 2004.09
10
2D
7. TROUBLESHOOTING
1) When Ig2 with the wiper switch “AUTO” position, the wiper operates one cycle to remind a driver that the wiper
switch is in “AUTO” position.
2) When the wiper switch is turned to “AUTO” from OFF, the wiper operates one cycle. It always operates one cycle
for the initial operation, however, the wiper does not operate afterwards to prevent the wiper blade wear if not raining
when turning the wiper switch to “AUTO” from “OFF”. However, the wiper operates up to 5 minutes after rain stops.
If this function does not occur, check No. 1 pin. If the pin is normal, check the wiper relay related terminals in ICM
box.
1. The wiper should not operate one cycle when turning the wiper switch to “AUTO” from “OFF” position
or Ig S/W (Ig2) while the wiper switch is in “AUTO” position.
2. It rains but the system does not work in “AUTO” position.
1) Check whether the wiper switch is in “AUTO” position.
2) Check the power to sensor. Check the conditions of pin 3 (Ground) and pin 4 (IGN).
3) Check the wiper relay for defective.
3. The wiper operates 3 or 4 times with high speed abruptly.
4. The wiper operates continuously even on the dry glass.
Check whether the variable resistance knob on the wiper switch is set in “FAST”. The “FAST” is the highest stage
of sensitivity and very sensitive to small amount of rain drops. Therefore, change the knob to low sensitivity.
1) Check the wiper blade for wear. If the wiper blade cannot wipe the glass uniformly and clearly, this problem could
be occurred. In this case, replace the wiper blade with new one.
2) Check whether the variable resistance knob on the wiper switch is set in “FAST”. The “FAST” is the highest stage
of sensitivity and very sensitive to small amount of rain drops. Therefore, change the knob to low sensitivity.
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