240sx Turn Signal Swap (Thanks to J)
I also have those half amber half clear chuki lights on my vert but the s13 wiring is a little different from the m but a really simple fix. If you notice the s13 turn signals come on when u turn on your headlights whereas the m30 doesn’t. the m30’s turn signal has only a +/- wire and the s13 has +/- and a relay wire. it took me about a half hour to do but it would have been done quicker if i could stop staring at the car all the time.
If you want to do it properly all you need is a light tester, wire cutters, electric tape, about a foot of 16-22 gauge speaker wire, and 8 butt connectors. you also need the clip off an s13 that plugs in to the turn signal with the 3 wires coming out of it. try and cut it as long as possible to make an easier time for yourself when u have to wire it to the m.
- Unscrew your signals, and cut the clip as close to the blinker as possible.notice that there is only 2 wires. one wire is green w/yellow stripe (+blinker relay) and the other is black w/silver dots(- ground).
- Your s13 harness should have the same green and black wires with an extra red wire. splice open all 3 wires and color match the green w/green and black w/black. u can either solder the wires or just use butt connectors as i did.
- Now for that red wire. take out the clip for your side marker (the one that looks like its apart of the headlight) there should be a black wire and a green wire w/white stripe. splice the green wire and connect it to the red wire from the s13 harness.(this is the one you’ll need about 6in of speaker wire.
- Turn on your headlights and hazards to make sure all lights are working properly.
If any of the wires i described are different colors on your car then just use a light tester to figure out which wires get power when u turn on your blinkers or your headlights.