Headlamp Wipers
Headlamp Wipers Diagrams:
Headlamp Wipers Components:
Locations of components
7 Earthing point
On the radiator cross-member
22 Fuse box
In the electrical distribution box in the engine compartment, on the left-hand wheel housing
57 3-pole connector (1985 and 1986 models)
One at each wiper motor, at the front of the engine compartment.
59 2-pole connector
At the washer fluid container, forward of the right-hand wheel housing
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 Head lamp wiper motor
On the left-hand and right-hand sides of the grille
83 Relay for intermittent operation of the windscreen wipers
Under the facia, 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 certain markets only.
When the ignition switch is in the drive position, cur- rent will flow:
from fuse 5, via the 29-pole red connector 152B, to switch 61 for the headlamp wipers and washer, 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.