SsangYong Rodius (2013 year). Manual - part 110

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(2) Rain Sensor Coupled Wiper

▶ System layout

This vehicle has a different wiper control logic compared to other models. As shown in the system 

diagram, the rain sensor unit does not control wiper directly. The rain sensor unit sends infrared rays 

signal through LED and then receives it with photo diode and then sends the returned signal to STICS 

and the STICS controls the wipers directly.

For more details, refer to rain sensing wiper section in this manual.

02-9

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▶ Rain sensing operation point

The wiper relay is turned on and the wiper motor runs one cycle when the ignition key is turned to 
“ON” position (while the wiper switch is in “AUTO” position).

The wiper relay (LO) is turned on and the wiper motor runs one cycle when changing the wiper 
switch to “AUTO” position from any other positions (while the ignition key is in “ON” 
position). When the wiper switch is turned to “AUTO” position again from other positions, 

the system drives the wiper relay (LO) to run the wiper motor one cycle only when the rain sensor 
detects the “Rain Detected” signal.

1) 

2)

02-10

The wiper relay is turned on and the wiper motor runs one cycle when the volume sensitivity is 
increased (ex: from 0 to 1) (while the ignition key is in “ON” position, the wiper switch is in 
“AUTO” position, and the wiper motor is in “Parked” position). However, the wiper motor can 
be operated only when the rain sensor detects the “Rain Detected” signal.

▶ Rain sensing sensitivity control

If the volume sensitivity is changed more than 2 stages within 2 seconds, the wiper motor runs only 

one cycle.

*

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The wiper system continuously outputs the parking signal of current sensitivity when the parking 
terminal is grounded (while the ignition key is in “ON” position and the wiper switch is in 
“AUTO” position).

1)

※ The wiper motor runs only when the rain sensor requires.

When the parking terminal is fixed to IGN (HIGH), the wiper system outputs the operating signal of 

current sensitivity for 2 seconds, then continuously outputs the parking signal of current sensitivity.

2)

※ The wiper motor runs only when the rain sensor requires.

▶ Wiper operation when the wiper parking terminal is grounded