FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Rain Sensor Circuit

Rain Sensor Circuit

DESCRIPTION
This circuit provides power to operate the rain sensor.

The auto wiper system operates when the wiper switch is in the AUTO position.

The rain sensor is connected to each ECU through the multiplex communication line.

When the rain sensor detects raindrops in the detection area of the windshield glass, the sensor sends a wiper control signal according to the amount of raindrops to the cowl side junction block ECU LH.

The rain sensor also sends signals to the adaptive laser radar cruise control system and the mirror defogger system.

Wiring Diagram:






INSPECTION PROCEDURE

HINT: Before the procedure, check that Multiplex Communication System (MPX) DTCs are not output.

Step 1-2: