reposted here from IZCC listserve without permission...thought it would do well in the archive since it's such a great discussion of this "option" but feel free to delete if inappropriate.
"Date: Sun, 26 Feb 2006 16:36:09 -0600
From: E Scanlon
Subject: Re: <240> Fog Lights prewired
Going through some old e-mails and noticed this one. Saw one answer,
but
felt that there was a bit more information that should be included.
Jean-Pierre Lemonde wrote:
> Question: The 240Z was prewired for fog lights. Anybody knows
where
> the wires end up in the car and ultimately where would be the
switch?
The 240's had the fog lamp wires taped with blue vinyl tape to the main
LIGHT wiring harness, in front of the radiator. You should find two
sets
of wires right by the wirng for the horns.
The colors for these wires are : RED and BLACK.
They are wired in parallel so if you only hook up one fog lamp you
definitely should insulate the other pair from ground or each other.
Inside the cabin, by the fuse box, you'll find a 2 wire connector that
has spade connectors arranged in a "T". That is, one spade will be
"horizontal" while it's pair will be perpendicular to it. In the cabin
however, the wiring color CAN be slightly different than the Red and
the
Black at the lamps. The schematic shows it to be a RED wire and a
RED/GREEN wire, but I have seen this be a GREEN/WHITE wire instead.
Since the Fog Lamp circuitry is actually receiving power from the
Parking
Lamp circuit (As well as the instrument lamps, although it's hooked up
ahead of the rheostat and inst. lamps.) all you need to power the Fog
Lamps is a Switch, or simply join the two wires at the "T" connector by
the fuse box. So a simple SPST switch is all you need. You CAN use a
lighted switch, but you must provide a ground for the bulb in the
switch.
In the Series I cars, the true OEM Fog Lamp Switch was located above
the
Hazard Switch on the Dash. To my knowledge no U.S. or Canadian
vehicles
were shipped or received with the Switch in place. As a result, the
OEM
Fog Lamp Switch is but a mere vague memory to most Z fans in North
America. Kind of like the Individual Side Marker Lamp circuitry that
was
used in Japan. (Lighting up the traffic side of the vehicle in areas
where no street lighting was available. It allowed independent
lighting
of either the Left or Right sides of the vehicle, both front and rear,
via a small 3W bulb.)
But, the location for that Ind. Side Marker Lamp Switch, is on the
Series
I console. Just to the right of the Hatch Window Defrost Switch. If
you've ever seen an EARLY Defrost Switch, you'll recall that it's NOT
lighted. If you were to put two of those switches in the same housing
side by side, you'd have the Ind. Side Marker Lamp Switch.
But I digress, the reason for mentioning the Ind. Side Marker Lamp
Switch
is that it's location on the console is PERFECT for an aftermarket Fog
Lamp Switch. The only problem is that most Fog Lamp Switches that are
Light, are of the NARROW type. Leaving a lot of space on the sides of
the switch. So now you need to fill that space, or find a different
switch.
After a LONG and tedious search at my local Radio Shack, I found 3
switches that fill that hole very nicely. I'll give you the numbers so
that you don't bug the hell out of your local Radio Shack help
scrounging
through their switch drawer.
Radio Shack Part Number 274-731; This one is a direct fit, and it has
an
LED in it. However, for my vehicle, I didn't care for the lone LED dot
next to the Lighted Defog Switch. But, the switch is a direct fit, 12V
and Lighted. The "frame" around the toggle is squared with rounded
corners. The toggle button is a round rocker style. It "snaps" into
the
surrounding plastic/metal that you mount it onto. You can connect to
it
with standard Spade connectors.
The next two switches are 125VAC, which simply means that they're rated
for a much higher voltage than you'll be submitting them to. If you
use
the Illuminated style in 125VAC, the light won't work with 12V. But if
you cannibalize a 12V Lamp from a 12V Switch,
Radio Shack Part Number 274-694: This one has a Square Frame and a
Square
Toggle. The Toggle is cast in Red plastic with White "O" and "I"
painted
on it's face. It is a "threaded" mount style, which means that you'll
be
tightening a "nut" on it's back side to mount it. Connections are
Solder
Style.
Radio Shack Part Number 274-692: This one is very similar to the 12V
switch (275-731) except that it has a rounded Red Toggle Switch that is
illuminated from inside the switch. It is a Threaded Mount, and uses
the
narrower Spade Lug Connectors. It is however a 125VAC switch. To
convert it to 12V you will have to cannibalize a 12V Lighted Switch.
But
once you do so, the match to the Hatch Defrost Switch is much more
appealing.
All of these switches FILL the space to the right of the Hatch Defrost
Switch. Perfect if you don't have the filler plug. If you DO have the
filler plug....DO NOT THROW IT AWAY. There are several people who are
in
need of just that plug.
To see a picture of the installed switch, follow this link:
http://www.classiczcars.com/photopos...00&ppuser=1490
Hope this helps.
Enrique"
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