Windscreen Wipers

Windscreen Wipers Diagrams:

Windscreen Wipers Components:

Locations of components

3 Earthing point
In the facia

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

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

62 Windscreen wiper motor
In the engine compartment, on the bulkhead

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 wind screen 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.

158 Negative distribution terminal
In the electrical distribution box in the engine compartment, on the left-hand wheel housing

269 Two-pole connector (ME and FE only)

Operation
The windscreen wipers of the car can run at two speeds and have an intermittent operation function. The system also includes the windscreen washers.

When the ignition switch is in the drive position.

Windscreen wiper stalk switch 61 and Relay 83 for intermittent operation of the windscreen wipers are supplied via fuse 5 and the 29-pole red connector 152B.

When the switch is in position 11(10w speed), terminal 53 of the wiper motor is supplied from terminal 53 of the switch, and the motor will run at low speed.

When the switch is in position Ill, terminal 53B of the wiper motor is supplied from terminal 53B of the switch. The motor will now run at high speed.

When the switch is in position I (intermittent operation), current will flow from terminal INT to intermittent operation relay 83, which will thus be energized.

The relay contacts will close, and current will flow from terminal 53M to terminal 31B of the switch, through the switch and from terminal 53 of the switch to terminal 53 of the wiper motor. The wiper motor will now run intermittently. The frequency of the intermittent operation of the wiper motor is determined by the relay.

The wiper motor incorporates a mechanically actuated switch, to which the supply is live regardless of the position of the stalk switch. The switch controls the supply so that the wiper motor unit will always return to the parked position after the circuit has been opened by the stalk switch.

This is due to the fact that the wiper motor is then supplied from terminal 53A, and from terminal 31B, across the built-in switch. The current flows through the intermittent operation relay and the stalk switch, and then back to terminal 53 of the windscreen wiper motor.

When the wiper motor unit reaches the parked position, the mechanically actuated switch will open and the motor will stop.

Windscreen washers
Washing will start when the stalk switch is moved towards the steering wheel rim, regardless of whether switch 61 is in position I, II or III.

When the stalk switch is moved towards the steering wheel, contacts "A" will close. Washer motor 63 is then supplied from terminal 54 of the stalk switch and will run as long as the switch remains closed. After the stalk switch has been released, the wipers will sweep the windscreen five times before they stop.

On 1984 models, the washer motor is supplied via headlamp wiper motor 66.

Fault-tracing hints
The windscreen wipers will be operative when the ignition switch is in the drive position.

1. Check fuse 5 and check that the supply to it is live.

2. Check that motor 62, switch 61 and relay 83 are live.

3. Operate the switch and check that the windscreen wiper motor and the washer motor are live.

4. Check the connectors, cable harnesses and earth connections.