Hiya,? I've got a very late Mk3 (as per sig) and I can't vary the intermittant wiper speed.? I know how to do it, I've had 3 of these cars before, but its not on this one.
Is this speed adjusted by a special relay?? Its going to have some sort of timer circuit built in using the switching of the wiper arm to tell the circuit the end of the required cycle of intermittant wipe...If that makes sense

I have got a fixed time of intermittant wipe but I cannot vary it at all.
Any help is appreciated