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.