8 pin rear foglight, need diagram Options

[bojangles_8686]

Where did you tap into the illumination circuit? Also what kind of led did you use? I have pretty much given up on this, but your post with the new wiring setup got me inspired. Ill try out that new setup tonight.

EDIT: My god it works. Out of all the combos I tried, I don't know how I missed this one. I used your setup to make the switch turn my front fogs on/off. This is what I have set up:

1. 12v + to aftermarket relay for front fogs.
2. 12v + from low beams
3. 12v + from low beams
4.
5.
6. Ground
7. Ground
8. Ground

With this setup, the fogs can only get power when the low beams have power. I know a lot of people would rather be able to turn them on at any time, but I have had some bad luck with leaving my fogs on and draining my battery. I didn't tap into the illumination circuit because my led is dead and the switch didn't work if the illumination + and - weren't wired in some way. Once I get a new led I will hook it up to illumination, which brings me to another situation. I want my switch to light up only when the fogs are on, and the light is controlled by the dimmer switch. This way I have an indicator for when the fogs are on, and it is giving off the same light as the rest of the dash lighting. This is how I want to do it....



Let me know what you think.



This post has been edited by bojangles_8686: Mar 15, 2010 - 8:38 PM

[captb]

hey bojangles, i got some fogs coming in and im thinking about wiring something like this. i was just wondering why you need 2 relays to use uk fog button?

also, i think i would be ok with the the light on the button always illuminated. would that be the case if i wired it according to your diagram?

[Tech-Nics]

Aren't the Celica's rear fog light for the USDM Celica's just night time lights & brake lights? The two most inner lights on the tails right?

This post has been edited by Tech-Nics: Mar 25, 2010 - 6:04 AM

[captb]

Aren't the Celica's rear fog light for the USDM Celica's just night time lights & brake lights? The two most inner lights on the tails right?

he used the uk version rear deforgger switch to control the front fogs in the usdm model. i hope to do the same. =)

[bojangles_8686]

hey bojangles, i got some fogs coming in and im thinking about wiring something like this. i was just wondering why you need 2 relays to use uk fog button?

also, i think i would be ok with the the light on the button always illuminated. would that be the case if i wired it according to your diagram?

If you wired your button according to my diagram, the light would only come on when the fogs are on(which only come on when the low beams have power), and the brightness would be controlled by the dimmer switch, which controls the rest of the dash lighting, so it would be just as bright/dark as the rest of the dash. This way, the button actually serves as an indicator that the fogs are on or off, and it isn't any brighter/darker than the rest of the dash lighting. The second relay (the topmost one) is what connects the bulb in the button to the rest of the dimmer controlled illumination, and is triggered only when the fogs get power. If you don't care about being able to dim the button, take the second relay out of the equation and wire pin 2 on the switch to pin 86 on the fog light relay. The button wont constantly be lit, but it will light up when the fogs are on, which is better imho. Hope this helps.