Rain Sensor Circuit

RAIN SENSOR CIRCUIT

CIRCUIT DESCRIPTION

This circuit provides power to operate the rain sensor.

The auto wiper system is operated by the wiper switch being in the AUTO position.

The rain sensor is connected to each ECU at the multiplex communication circuit.

When it detects raindrops in the detection area of the windshield glass, it sends a wiper control signal according to the amount of raindrops to the passenger side J/B ECU.

It also sends signals to the adaptive laser radar cruise control system, the mirror defogger system and others.

Wiring Diagram:

Step 1:

INSPECTION PROCEDURE

HINT: Before the procedure, check that DTCs are not output of multiplex communication system.