Windscreen wiper motor

Windscreen wiper motor

On the motor casing, there is a container with the switching circuit, consisting of a relay and a switch for the automatic return of the blades to the rest position.

Windscreen washer

When the right stalk unit lever is moved towards the driver, the windscreen washer pump is supplied. When the lever is released, the pump stops while the windscreen wiper remains on for about four seconds to finish wiping the window.

Windscreen washer pump

The windscreen washer pump is mounted directly on the fluid reservoir.

Rear window wiper

The rear window wiper and pump are controlled by the right stalk unit lever, which has two additional switches; one is of the ring type for controlling the rear window wiper and one controls the pump. The rear window wiper motor has a relay and a switch which constitute the control/reset circuit of the wiper blade.

• A When the ring switch located on the stalk unit lever is rotated, a terminal of the control relay is connected directly to earth by a cable which supplies the motor continuously.
• B When the lever is pushed towards the dashboard, the pump and rear window wiper are switched on simultaneously, and remain on until pressure on the lever stops.

Rear window washer

The pump is of the bidirectional type, and has two connections to which are connected two pipes conveying the fluid to the spray jets for the windscreen and the jet for the rear window.

The direction of the fluid and so its destination depend on the direction of rotation of the pump, which is determined by the position to which the stalk unit lever is pushed. In other words, by pushing the lever forwards in a horizontal direction, the pump is supplied sending the positive to the SN cable and the negative to the S cable.

The fluid is thus sent to the rear window and at the same time the rear window wiper is operated until the lever is released.

Headlamp washer

The headlamp washer system comprises a pump located on the windscreen washer fluid reservoir adjacent to the windscreen washer pump, to which two jets secured to the front bumper are connected via the appropriate pipes, and a timer.

With the dipped beam headlamps switched on, when the right stalk unit lever is moved towards the driver, in addition to activating the windscreen washer function, the headlamp washer function is also activated.

Operation

The timer is supplied by a 12 V positive coming directly from the battery and protected by a 20 A fuse connected to the front left earth via a terminal.

When the the dipped beam headlamps or front and rear fog lamps are switched on, by means of the stalk unit ring switch, a timer on its terminal is supplied, preparing the system for operation.