LR3/Disco 3
Rear Wiper Speed Class Matrix
Front Wiper Speed Class Matrix
The rotary switch positions also influence the operation of the rain/light sensor (when fitted) by adjusting its sensitivity.
Refer to the Rain/Light Sensor section for details.
Normal (Slow) Speed
The normal (slow) speed continuous wiper operation is selected by moving the switch vertically to the second detente
position from 'OFF'. The wipers will operate continuously when the vehicle is moving. When the vehicle is stationary, or
less than 5 mph (8 km/h), the CJB operates the wipers in the intermittent mode (if speed dependant wipe mode is
configured), using a 3 second intermittent delay period.
Fast Speed
The fast speed continuous wiper operation is selected by moving the switch vertically to the third detente position. The
wipers will operate continuously at fast speed when the vehicle is moving. When the vehicle is stationary, or less than 5
mph (8 km/h), the CJB operates the wipers in normal (slow) speed mode (if speed dependant wipe mode is configured).
Wash/Wipe
When the non-latching wiper stalk button is pushed the front screen washer is operated. If the wipers are off and the
button is pressed for less than 0.5 seconds, only the washer will operate. If the button is pressed for more than 0.5
seconds, the wipers will come on and perform two wipes. When headlamp washers are fitted, the headlamp washers will
operate if the front windscreen washer is operated and the headlamps are on – refer to headlamp wash section for detail
of operation. The CJB monitors the wash/wipe switch operation and after the switch is released, if a programmed wipe is
enabled, the CJB allows two further wipe cycles to be completed.
Rear Wash/wipe
Moving the switch rearwards, towards the driver, selects the intermittent rear wash/wipe function. The intermittent delay
period will vary according to the sensitivity settings and vehicle speed.
When the switch is moved rearwards to the second position and held, the washer pump will operate. If the switch is
Rotary Position
Speed Class
0 1 2 3 4 5
Position 1
6 5 4 3 2 0
Position 2
10 8 6 4 2 1
Position 3
14 11 8 5 3 1
Position 4
18 15 11 8 5 2
Position 5
22 18 13 9 6 3
Position 6
26 21 16 11 7 4
Rotary Position
Speed Class
0
1
2 3 4 5
Position 1
3.5 3 2.5 2 1.5 1
Position 2
5
4 3.5 3 2.5 2
Position 3
7 6.5 6 5 4 3
Position 4
9
8
7 6 5 4
Position 5
11 9.5 8 7 6 5
Position 6
13 11 9 8 7 6
