I have done a conversion on my S14 and swapped the entire wiring from an S15 into it but I have one problem that I cannot solve. When I put the lead for the battery on and put the key in the ignition and switched it to the ON position the passenger window immediately went down without pressing any door switch and has never gone up since. All wiring is plug and play and I have rechecked all grounds and even redone them. what can it be as I am not seeing any blown fuses or relays. The power window relay I checked but it does not look blown, would it looked discoloured if blown or not necessarily?