Finally managed to find a passenger side A Series LWB Window Switch and get the windows working again in O-no.
I've been looking for a switch for the last 6 months or so, with no luck and finally managed to track one down on flea bay for a comfy £12.00 delivered.
Points to note for the future:
Window not going up/down stylee faults are most likely to be caused by dry joints in the wiring and the connectors in the doors are the most likely culprit.
1st i.a should be checking the circuit fuse, once that is confirmed as good then check and clean the connectors behind the door panels before replacing the ecu and switches.
Of the front switches the drivers side one is most likely to have worn out through use while the passenger side one is susceptible to voltage spikes and reverse polarity damage in the circuit-board that is connected to it. Not sure what it does, but I think it's likely to be part of the overload timer protection for the lift motors. From my experience any fault on it stops the whole setup from working.
Don't try to close a window by putting a voltage onto one of the plugs in the handbrake housing. It'll most likely cook the circuit board on the passenger side switch

. You need to take the door panel off, disconnect at the plug and then apply the voltage to the motor lead directly.
Oddly enough, switches from the VX Carlton (of the same year range as the fronty) fit, work and are (in my experience) easier to get and a lot cheaper than the Frontera varierty.
This posting may have been helpfull, on the other hand probably not... Either way, I may have had drink when posting it in which case it's probably not as helpfull as it could have been
Work safe, and remember all technical problems can be resolved with a hammer, the trick is knowing where to hit it and how big a hammer to use (I often find it may also help to have a spare bit in the shed to replace the bit you have just mullered

)
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