heater BMW X5 2001 E53 Central Body Electronics Workshop Manual

OPTIONAL RAIN SENSOR (AIC)
The Windshield Wiping System will also be 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.
COMPONENTS:
The rain sensor 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 time driving
The control module requires four signals for operation; KL R, KL 31, Windshield Wiper
Motor Park Signal Feedback and K Bus interface.
ZKE - 10
GM III