Editing S30/JDMtailwiring (section)

== The Wiring ==

here is a diagram of the stock US 240Z brake/rear turn wiring. This diagram is VERY simple, I've left out many details to promote clarity of purpose. I'm only showing the most pertinent items here.

So to make the US cars work like the JDM cars, you need to do a couple of things. First, snip the combined brake/flasher wires for all of the upper bulbs. They should be Green/Black on the right side of the car, and Green/Red on the left. A Series 1 car will have these wires to all four of the upper bulbs, but a later (1/71-on) 240Z will only have these wires to the outer bulbs, not the inner ones.

'''IMPORTANT: Do not cut the wire going to the lower, single filament bulb. You need to leave that one connected to the terminal in the wiring connector. Make certain that the cut ends from the connector are well insulated. Then attach a terminal to the snipped ends that you will use later.'''

Run a new wire from the front of the car near the steering column all the way to the rear of the car. This wire will be your new brake light circuit. At the front, disconnect the brake light output wire where it goes up to the turn signal switch and connect your new wire to the output wire of the brake light switch. (Two wires on the brake light switch, one is hot all the time. connect the new wire to the other one.) Don't plug anything into the wire going up to the turn signal switch. At the rear, this new wire needs to connect to the snipped wires on both sides of the car. Do that, and you're done. Here's another simple diagram to illustrate:

This wiring mod does not require amber lenses, you can still do it with all-red if you prefer this style of lighting, or just to be a touch different. (Side note: 260 and 280Zs all came wired this way, even though we still just got all-red lenses.)