SsangYong Korando III (2010 year). Manual — part 438
03-36
Rain sensor malfunction (no rain sensor signal)
▶
The AUTO switch speed level is adjusted (ex: speed level 4 → level 3)
The wiper LO relay is operated once (T1).
A.
B.
Operation 1.
("no signal detected" signal received from the rain sensor)
Basic conditions
IGN ON and AUTO switch ON
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Operating process
- IGN ON/Wiper AUTO switch ON
03-38
Speed sensitive AUTO wiper
▶
The speed sensitive AUTO wiper is operated as follows for the vehicles without rain sensor or the
vehicles without rain sensor coupled wiper operation because of faulty rain sensor.
Intermittent wiper operation by the values from vehicle speed and speed level of the wiper speed
control.
-
Speed sensitivity AUTO switch rest time
AUTO switch level
Level
Resistance
Remarks
0%
3 kΩ or less
FAST
25%
8 kΩ to 13 KΩ
50%
18 kΩ to 30 KΩ
75%
35 kΩ to 43 KΩ
100%
45 kΩ or more
SLOW
There are HYSTERISIS ranges between the
levels.
The wiper remains activated for the time remaining when the AUTO switch is turned OFF during the
speed sensitive wiper operation.
The intermittent operation is reactivated when the AUTO switch is turned ON with IGN ON.
The intermittent operation is reactivated when the AUTO switch is turned ON with IGN ON.
-
-
-
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Wiper troubleshooting
▶
The wiper does not cycle one time when turning the multi-function wiper
switch from OFF to AUTO position or when starting the engine with the multi-
function wiper switch in AUTO position.
Symptom 1.
When starting the engine with the multi-function wiper switch in AUTO position, the wiper always
cycles one time to remind the driver of system in AUTO mode.
This wiper operation is performed only for the first time when turning the multi-function wiper switch
from OFF to AUTO position with IGN ON. If the switch is turned from OFF to AUTO again after
that, the wiper is operated only when raining to prevent the wiper blade from wearing.
1.
2.
It rains but the wiper does not work with the wiper switch in AUTO position.
Symptom 2.
Check if the multi-function wiper switch is in AUTO position.
Check the power to the rain sensor. That is, check the pin no. 3 (GND) and pin no. 4 (IGN).
Check that the wiper relay is intact.
1.
2.
3.
The wiper operates 3 or 4 times with high speed abruptly.
Symptom 3.
Check if the wiper speed control switch is set to the fast side.
The fast stage has the highest sensitivity and is very sensitive to the small change of amount of rain
drops. Therefore, adjust the knob to lower the sensitivity level.
The wiper continues work even if the windshield glass is dry.
Symptom 4.
Check the wiper blade for wear. If the wiper blade cannot wipe the glass uniformly and clearly, this
problem could occur. In this case, replace the wiper blade with a new one.
Check if the wiper speed control switch is set to the fast side.
1.
2.
The fast stage has the highest sensitivity and is very sensitive to the small change of amount of rain
drops. Therefore, adjust the knob to lower the sensitivity level.
The overall wiper response is too fast or slow.
Symptom 5.
Check if the wiper speed control switch is set to the fast or slow side.
Notify that the user can select the sensitivity by selecting the variable resistance value. And, select a
proper stage.
The wiper also cycles one time when the multi-function wiper switch is turned from OFF to AUTO
position during 5 minutes after the rain stops.
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