My intent is to leave the JDM assembly intact, bulb and all. If I have the bulb number it makes design and testing easier.

Hehe yea I'd be building mine with a PIC as well just so I could customize the system... but what about a simple flasher relay for a quick and dirty system. Has anyone found a rocker switch that will fit in the blank spot on the transmission tunnel between the two heated seat rockers?

Cherubim, I don't have one yet but hopefully someone with it can post that bulb info. I'd love to see what you can do.

Well then don't you actually need the bulb info for the fog light bulb?

I guess I don't quite understand what you are trying to construct here (although it sounds interesting)!

He is trying to set up a timer and switch unit. But he needs to know what type of bulb these rear fog light takes.

OK am I missing something here? Is the idea to have the light blink in the simplest/cheapest method possible? If so (although I'm not a relay fan) then wouldn't a standard singal flasher relay be the easiest?

If you want a timer circuit to leave the light on for a period of time use a small cap across the gate on a FET. Once the cap discharges (and the stray capacitance discharges) the FET will shut off - quick and dirty (and cheap and simple too!). Just use a momentary switch to charge the cap up - pico farads will likely be enough unless you want a long on time.

Which was why I was confused; the bulb for the rear fog light is, I'm fairly sure, different than whatever bulbs are used for the brake lights (in fact now that I think about it, the brake lights don't use "bulbs" at all since they are LEDs.

The bulb for the rear brake light is: 7440 W21W STANLEY 12V 4TQ 2DV

I have a feeling, however, that after doing a quick search, this may be a difficult bulb to get in the U.S. - not sure but could be an issue.

Whatever the end design I use, it's best to test using the actual hardware the circuit will be driving. So, it's useful to have the bulb I'll be driving.

A 7440 bulb should not be difficult to procure in the US. A quick google search shows them available online for $3.

While a full blown PIC18 microcontroller could be overkill for this kind of project, an 8-pin PIC16 and a couple of transistors can make this a very small circuit leading to significantly easier installations. A flasher/relay circuit is also an option, and I can build one of those immediately.

Actually, my post was the bulb for the rear FOG light; not brake light. :)

I was looking online for that bulb as well and found several variants of a 7440; I didn't find an exact match nor did the end connectors look the same as the bulb that came with the rear fog assembly.

Of course for testing purposes, that's probably immaterial but if anyone is actually looking for an exact replacement it might signal some difficulty.

+1 vote for reverse blink and fog lamp! it'd be great for daily driving. i hope the price is reasonable.

-1 for reverse blinking...lol...i see no point to it......

lol. i just envision an f1 car backing out of the garage and seeing it flash back and forth to the shape of a Z.

Since I can't see very well out of the car when backing up I want every single thing I can lit up and blinking to get people's attention. It makes perfect sense to me.

Still working on it. I haven't forgotten.

MCR has finalized their F1 blinker harness kit.

MCR - F1 Marker Harness Kit

http://370ztune.com/images/product_i...ffcc_W1200.jpg

http://370ztune.com/images/product_i...5ddf7_W300.jpg

-Hunter