Headlight Wiper/Washer

Headlamp Wiper Diagrams:

Headlamp Wiper Components:

Locations of components

7 Earthing point
On the radiator cross-member

22A Fuse holder
In the electrical distribution box, in the engine compartment, on the left-hand wheel housing

57 3-pole connector
One at each wiper motor, at the front of the engine compartment.

61 Windscreen wiper stalk switch
On the right-hand side of the steering column

63 Washer motor
In the washer fluid container, forward of the right-hand wheel housing

66 Headlamp wiper motor
On the left-hand and right-hand sides of the grille

83 Relay for intermittent operation of the windscreen wipers
Under the fascia, to the left of the steering column (behind the knee shield)

152B 29-pole red connector
152C 29-pole black connector
In the electrical distribution box in the engine compartment, on the left-hand wheel housing. The connectors are accessible from the interior of the car.

Operation
Headlamp wipers are available on cars for certain markets only.

When the ignition switch is in the drive position, current will flow:

- from fuse 5, via 29-pole red connector i52B, to switch 61 for the headlamp wipers and washers, and
- from fuse 8 to each headlamp wiper motor 66.

When the stalk switch is moved towards the steering wheel rim, contacts "A" will close. Headlamp wiper motors 66 and and washer motor 63 will start simultaneously.

When the stalk is released and the circuit is opened, the wiper motors will still be energized (across fuse 8). When the wiper motors have completed five strokes, the limit switches incorporated into the motors will open the circuit and the wipers will stop in the parked position.

A diode in each motor prevents the current from the feedback circuit of the motor from flowing back to the washer motor.

Each wiper motor incorporates overload protection with a protective switch which is actuated by a resistor. The switch is in series with the motor and will trip if the load should exceed a predetermined value (e.g. if the wiper blades have frozen to the lenses).

Fault-tracing hints
The headlamp wipers and the washer motor will be operative when the ignition switch is in the drive position.

1. Check fuses 5 and 8 and check that the supply to them is live.
2. Check that terminal 53A of the switch is live, and that the supply is reaching the wiper motors.
3. Move the stalk switch towards the steering wheel rim and check that the wiper motors and the washer motor are live.
4. Check the connectors, cable harnesses and earth connections.