Operational Characteristics Of Rain Sensor - SSANGYONG 2004 Rexton 2.7XDi Workshop Manual

4. Automatic low speed
AUTO LO mode operates when rains on windshield exceed critical value of AUTO INT and AUTO LO. This critical
value has magnetization characteristics that prevents repeating operation between AUTO INT and AUTO LO while
accumulating rain.
5. Automatic high speed
AUTO HI mode operates when rains on windshield exceed critical value of AUTO LO and AUTO HI. This critical value
has magnetization characteristics that prevents repeating operation between AUTO LO and AUTO HI while accumulating
rain.
6. Washer mode
Rain sensor monitors whether the wiper switch has selected washer function. When washer switch on the wiper
switch in wiper system is pressed on for over 0.6 sec., wiper operates for 2.5 ~ 3.8 sec. and, if not, operates once
only. Under washer mode, wiper motor operates in low speed to clean the windshield.
7. Manual mode
If the driver operates switch, the wiper motor operates in low or high speed. At this moment, the wiper operation is
controlled by direct ground from wiper switch, not by rain sensor controls.
NOTE
When rain sensor is defective, wiper operates in low/high speed normally.

Operational Characteristics of Rain Sensor

1. Power stabilization time
When power is supplied, rain sensor outputs OFF signal until there is effective output within 250 msec. Effective
output is available after 2 sec. from the power supply.
2. Control of wiper speed and frequency
Main function of rain sensor is controlling wiping speed and delay time between wiping operations and maintaining
level of rains (degree of rains that covering windshield) that driver has selected. According to set sensitivity and
level of rains, rain sensor algorism determines operation mode among AUTO INT, AUTO LO and AUTO HI. When
sensitivity is set, wiper operation continues without driver's switch operations.
3. Shifts between modes
Rain sensor algorism shifts among AUTO INT, AUTO LO and AUTO HI at lower so does not make shocks.
4. Adjustable sensitivity performance
Sensitivity of rain sensor can be set by increasing/decreasing INT on wiper switch. Sensitivity can be set from
stage 1 to stage 5 according to actual system. Each stage can be identified so that can satisfy every driver's desire
on level of rains. Adjustable ranges are from short delay time (1 ~ 5 sec.) to long delay time (over 20 sec.), so that
can meet very small amount of rain. However, if rains heavily, wiper operates continuously in high speed regardless
of set sensor sensitivity.
5. Response characteristics of AUTO LO
If rains and the wiper should be operated from 0 to AUTO LO, rain sensor's high speed demand signal output period
does not exceed 9 sec.
6. Response characteristics of AUTO HI
If rains and the wiper should be operated from 0 to AUTO HI, rain sensor's high speed demand signal output period
does not exceed 9 sec.
7. Response characteristics when shifting from AUTO LO to AUTO HI
If rains and wiper operation changes from AUTO LO to AUTO HI, rain sensor's high speed demand signal output
period does not exceed 9 sec.
8. Response characteristics when shifting from AUTO HI to OFF
If rains and wiper operation changes from AUTO HI to 0, the system counts wiping times when it is high and low (12-time)
and when it is changing from INT to OFF (7-time) not to exceed 19 times in total.
SWITCHES
REXTON SM - 2004.4
9D-33
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN