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:
- 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.