With an MOT looming I thought I'd best just get everything in order before the test as no windscreen wipers are an MOT failure

Whilst trying to wire it up I was a bit confused as to what the point of the Brown-Green Wire was. I know it stayed at 12V whilst the wiper was in motion, but then where does this signal fit in?

The wiring diagram for the vehicle didn't do much good, as it just shows the wiper switch as a unit and no internal details.

After a quick Google it became apparent: its a parking switch line that powers the wipers after you have switched them off till they are in the "parked" position, usually out of the way of the drivers view.

The Cam simply closes another switch and stays closed till the motor is back in the starting position. So if the wipers are turned off mid wipe, they will always return. When the wiper motor is parked it is also shorted, as not to move whilst the vehicle is moving.

So with the single pole double position rotary switch I fitted, I simply connect the pole to the motor and the brown and green wire to one position and the green wire to the other.

So with this in mind I was able to move the wipers controls from the steering column and to the centre console.

Fingers crossed for the MOT...