OK, so got it home. Had a hot time as I needed to wind down the window to pay a toll on a bridge! Its strange, when the car has been left for say 20 mins with the ignition off and the keys removed, upon return i find the sensor will work again, until the windows are touched.
Ive striped down the mirror, the sensor looked ok, the wires were intact with no obvious splits or loose connections. i tried the connection from the mirror to the door, all good, then the connection on the door to the body, again all looked good. So i think the problem is elsewhere. Also as if the passenger touches the window or me the driver the same problem occurs.
So any other tips please??? ?