General Information

Component Location





General Description

In IGN2 ON state, If the wiper auto switch input is ON, then wiper low and high relay outputs are controlled by BCM. (BCM control the relay according to the rain sensor input signal.)

CAUTION:
Rain sensor is mounted on front windshield glass.
If the wiper switch is set to the auto position, then the multi-function switch sends auto signal to BCM via LIN communication line.
One of the five sensitivity through wiper auto switch positions will be sent rain sensor from BCM. The slowest mode of the wiper auto switch refers to the least sensitive state, while the fast mode refers to the most sensitive state.
The rain sensor sends a duty cycle signal (rain detected, low speed request, high speed request) to BCM according wiper to auto switch position.





[BCM input signal (Rain sensor to BCM)]
The rain sensor sends back a signal (rain detected, low speed request, high speed request) to the BCM. The signal of the rains sensor consists of a modulated plus waveform.




The rain sensor shall output the various modes according to the following chart:






DTC Description

The BCM sets DTC RAIN SENSOR MALFUNCTION 1 if the BCM detects internal fault of the rain sensor.

DTC Detecting Condition





Schematic Diagram