General Information

Component Location





General Description

In IGN2 ON state, If the AUTO sw input (LIN communication) is ON, then wiper low and high relay outputs are controlled by the rain sensor input signal.
If the wiper switch is set to the AUTO position, then the multi-function switch sends a time combination (INT2, INT1, INT0) via LIN communication.
The BCM sends to the rain sensor a pulse width modulated waveform. The total period of the waveform is greater than 10 milliseconds.




The rain sensor sends back to the BCM a pulse width modulated waveform with one distinct period.




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






DTC Description

The BCM sets DTC RAIN SENSOR MALFUNCTION 3 if the BCM detects no input signal fault from BCM to rain sensor.

DTC Detecting Condition





Schematic Diagram





Signal Waveform