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  1. R34 Auto Off headlights Hello, So today i modded my headlights to they turn off automatically when the key is removed from the car. I am doing this on my 1998 R34 25gt. It should be the same for the gtt at least, and somewhat similar for other models. This will make sure you cant leave your headlights on when you park only to return to a flat battery. (I've done this 3 times now) Tools: Soldering iron, Wire cutters, wire strippers, pliers, Crimper (i just used my pliers) Supplies: Solder, 3 horn relays. (i used jaycar part SY4068) at least 12 connectors to put on the relay tab (you need 12, but the packs from jaycar come in 8 packs.) couple of meters of wire Heat shrink First you will have to remove the plastic surround that goes around the steering column. There are 3 screws underneath. undo these and pull down on the handle that adjusts the wheel height, with this done it should just pop off. once this is done you will need to remove the lower dash piece. On mine there is a screw on the left and a couple of bolts on the right next to the bonnet release. you should now be able to pull it off, making sure to disconnect any plugs that are on the panel. there will be a bundle of wire coming from just behind the wheel under the dash then back up under the dash, In mine it was already cut open so this is where i attached my relays. you will need to find the correct wires that control the head lights. In my case it was the RED/WHITE wire, RED/YELLOW wire and the RED/BLUE But you should check these are correct. Best way i found is to look on the back on the indicator stalk there are 2 plugs, one has about 12 connectors on it, the other has 4. The connector with 4 plugs should have the wires said above and a green/white one. (Again your mileage may vary) Where ever you decide to splice into these wires you might want to cut the wire and extend it about 10cm on each side of the cut so you have a bit more room to work with. I soldered my little extension on the cut wire and heat shrunk it up. With this done i crimped the connectors onto the end of my wire and connected these to pins 87 and 30 of each relay. Now to get some power to toggle the relays. you will need some that is only powered with the key in the ignition. I got mine from the 12v socket next to the shifter. Connect a length of wire to the pos and neg of this and run it to under that dash (There might be a better spot to get this from, but i couldn't think of anywhere) then you will have to split this between the 3 relays. you can do this how ever you want. it should be pretty straight forward. crimp your connectors onto these wires and plug them on the remaining relay plugs. When moving the key to ACC you should be able to head the relays clicking. if not check your getting 12V on the connectors and that they are plugged in to the correct pins. it should be pins 85 and 86. Check that the lights all turn on with the key in the ignition. remove the key and the lights should go off with that.
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