Rain Sensor
Purpose of the System
The Windshield Wiping System is also available with an optionally equipped Rain Sensor. The Rain Sensor provides added driver convenience and enhances safety by automatically activating the intermittent function of the windshield wipers when water droplets are detected on the windshield.
Rain Sensor: The unit is mounted on the top center area of the interior windshield surface directly behind the rear view mirror. The unit contains
Scheme 313
- Optical Prism Body: This portion of the unit is permanently fixed to the windshield. It can not be removed and can only be replaced with a replacement windshield. The prism body has a reflective surface that faces the back of the windshield. The prism body also acts as the windshield mount for the Rain Sensor Control Module.
- Rain Sensor Control Module: The control module incorporates the following: Infra Red Emitter and Detector Diodes. Optics heater (prevents condensation from forming on diodes and prism). Optics evaluation and control electronics. Photo cell to detect night driving.
The control module requires four signals for operation; KLR, KL31, Windshield Wiper Motor Park Signal Feedback and K-Bus interface.
