Rain Sensor Circuit

Rain Sensor Circuit

DESCRIPTION
This circuit provides power to operate the rain sensor.
The auto wiper system operates when the windshield wiper switch assembly is in the AUTO position. The rain sensor is connected to other ECUs through the multiplex communication line (BEAN). When the rain sensor detects raindrops in the detection area on the windshield glass, the sensor sends a wiper control signal according to the amount of raindrops to the main body ECU LH (cowl side J/B LH). The rain sensor also sends signals to the adaptive radar cruise control system and the mirror defogger system.

HINT:
- Before starting the following procedure, check that multiplex communication system (MPX) DTCs are not output.
- Before starting the following procedure, verify that the rain sensor tape is correctly installed.

Wiring Diagram:

Step 1-2:

INSPECTION PROCEDURE