Pic. 1.67. Control circuit with adjustable pause in intermittent operation: 1 - pause ring
Set the wiper control to position «INT» and select the duration of the pause between strokes of the brushes by turning the ring (pic. 1.67).
Pic. 1.68. Rain sensor sensitivity control mode: 1 – ring regulator; 2 - rain sensor
Controls for external lighting and signaling devices, windshield and headlight wipers and washers, electric rear window defroster The sensitivity of the rain sensor can be changed by turning the ring knob on the wiper control lever (pic. 1.68). From the middle position (corresponds to normal sensor sensitivity) turn the knob to the mark (+) to increase the sensitivity and to the mark (–) – to reduce the sensitivity of the sensor.
The automatic wiper control mode may not work if the temperature of the rain sensor is about -10°C or lower, or about +85°C or more. If the windshield is coated with a water repellent, the rain sensor may not correctly judge the amount of precipitation on the glass. This can lead to disruption of the normal operation of the wiper in automatic mode.
If dirt or other foreign matter (e.g. ice or road salt particles) stuck to the windshield above the rain sensor, or the windshield is covered with frost, this may cause the wiper to automatically turn on. However, if the wiper blades cannot remove ice, dirt or other foreign matter from the glass, the automatic wiper control will turn off. In such cases, it is necessary to operate the wiper continuously by moving the control lever to the first or second detent position, or remove ice, dirt and other foreign matter manually before returning the wiper to automatic mode.