Specifications

85A-4
WIPING - WASHING
Wiping and washing: Function
85A
I - AUTOMATIC OPERATION
vehicles may be fitted with a wiper stalk with a sensitiv-
ity adjustment ring for the rain sensor.
In this instance the vehicles have:
-a sensor sensitivity ring on the wipers stalk,
- rain and light sensors.
To operate the system, move the wiper stalk to the
« intermittent » position.
If switching the ignition off, reposition the stalk at
« stop » then « intermittent » .
II - OPERATING NOTES
If there is too much stress on the wiper arms (e.g.: at
high speed), the Protection and Switching unit auto-
matically commands wiping at a lower speed.
If the wiper mechanism is jammed (e.g.: icy wind-
screen), the protection and switching unit automatically
cuts the supply to the motor.
If the windscreen wipers have been requested (by the
stalk or by the rain sensor), changing to reverse gear
will activate the rear wiper.
Any movement of the wiper stalk overrides and cancels
any UCH commands from the Protection and Switch-
ing Unit.
The intermittent rear wiper system is governed by the
vehicle speed.
If the UCH does not detect any signal from the steering
column control, the wiper speed selected before the
fault is maintained.
The UCH has configurations which are specific to the
washing - wiping function (see Fault finding - Config-
urations and programming) (MR 394, 87B, Connec-
tion unit).
Note:
Vehicles not fitted with a rain sensor have an inter-
mittent automatic system with a timing modification
ring.