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That sounds like a complicated thing for the small switch next to the passenger window locker on the driver's door.

Anyway, this switch. I want to change the wiring so that it only works when the ignition is on accessory or "on". ie, so it won't work with the key out. Just as a small anti-theft precaution (I know it's not much but every bit helps).

Does anyone know how I can change the wiring to do this? I had a quick look yesterday when I had my door trim off, but I wasn't really sure what I should be doing. I found one wire with +12v on it with the ignition off, which I presume is the door unlocker. But I didn't want to go cutting wires and soldering them without a better idea of what I should be doing.

I'm pretty sure if you cut the only +12v wire with the ignition off it will disable it. There is only one wire where with voltage with the ignition off, and there are no other switches in that cluster that do anything with the ignition off.

From memory it was the thin green wire (most are thicker), but check with your multimeter before cutting. Good luck with it.

Hrm. Complicated but.

You could get a hold of an Acc +12v line from somewhere (back of the cigarette lighter is the easiest place to find this on my R33) and run that to the always on +12v.

The thing is tho i think that this would result in non-functional central locking. Especially if you use remote keyless entry.

So in that case you could run the Accessory +12v to the inside of the door and using a small 12v relay wire it up so that the door lock/unlock switch is only part of the circuit when the Accessory +12v wire is hot.

It works in my head. :)

Sewid, that sounds like a good idea. I'll have to find a spot for a relay now, and figure out where to run the wire from/to. Actually, if I wire it up as you suggest, I should be able to take the +12v from one of the power window wires in the same cluster.

Edit: No that wouldn't work, that would just wind my window down whenever the relay was engaged I think :thumbsup:

Originally posted by JimX

Sewid, that sounds like a good idea. I'll have to find a spot for a relay now, and figure out where to run the wire from/to. Actually, if I wire it up as you suggest, I should be able to take the +12v from one of the power window wires in the same cluster.

Edit: No that wouldn't work, that would just wind my window down whenever the relay was engaged I think :thumbsup:

No actually u are spot on. Inside the door, you will have this:

+12v for power windows ----> window switch ----> window motor

All you need to do is jack into the +12v before the power window switch. You need to wire that to the coil side of a relay. Then wire the other side of the relay to the door lock/unlock switch circuit.

This becomes more complicated if you use one of those alarm power window interfaces which auto wind the power windows but is still doable.

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