Hey guys I'm converting my 1985 Fiero into a Lamborghini and in the middle of changing out the tail lights.
Does anyone know where the relay's are that control the rear tail light s and blinkers.
I need to make some modifications to seperate the brake light and blinkers.
Thanks

No relays, just light switch, turn switch and flasher. Oh and brake switch.

[This message has been edited by Dodgerunner (edited 01-07-2008).]

//www.fiero.nl/forum/A...040710-2-041331.html

[This message has been edited by buddycraigg (edited 01-08-2008).]

Are you sure Dodgerunner cause my Hayes book shows a relay.
I need to seperate the brake lights from the blinkers so they are completely independent of each other.
In addition to the relays I have found one flashe relay next to the collumn and another at the other end of the dash
on the end of the heater box. Any idea's which one does what?

quote Originally posted by rstubie: Are you sure Dodgerunner cause my Hayes book shows a relay.

yes he is sure.
you have an 1985 car
the wiring schematic you are looking at is for a 1984

this is from an old thread.

quote Originally posted by buddycraigg: I have asked the question before without a response but… What are the European requirements for a safety inspection? I am going to assume that it is the brake lights must be on, in red, on both sides when the brake pedal is depressed. The turn signals must be amber, and blink when the turn signal is on. And the two systems must be independent of each other. If the turn signals can be red that would make things easier but it can still be done. Lets attack the turn signals first. The wiring… The power runs this route… Stop lights fuse box stop light switch turn signal switch rear bulbs Turn signal Fuse box Flasher Turn signal switch Rear bulbs The turn signal switch opens the stop light circuit to whichever side you are turning and closes the turn signal circuit to that side. For them to have independence from these two circuits you are going to have to cut and splice some wires. If you want to keep the tail / stoplights lens as they are, and add an amber light where the reflectors are in the bumper. Follow steps 1-5 If you have an 84 model and would like the turn signals on the outer most bulb. 6-17 If you have an 85 and up and would like the turn signals on the outer most bulb. 8-17 If you have an 84 and up and would like the turn signals where the reverse lights are.1, 1a, 18, 19, 20, 3, 4, 5, 12 If you have an 85 and up and would like the turn signals where the reverse lights are.8, 9, 18, 19, 20, 3, 4, 5, 12 No, I didn’t mention the C500 connector. I am trying to keep this as simple as possible. (for me) 1 Cut the stoplight / turn signal power wires to all three lights on each side. 1a (for 84 only) unplug the lower relays on the rear firewall. 2 Add your amber light housing. 3 Run the original stoplight / turn signal power wires from the center bulbs in the car harness to the new lights. 4 Cut the output wire from the brake light switch under the dash and splice in a new wire to run to ALL 3 red brake lights. 5 Verify that the turn signals flash at a good speed, you may have to use a different flasher to get the correct flash speed. 6 (for 84 only) unplug the lower relays on the rear firewall. 7 Cut the stoplight / turn signal power wires to the inner most bulbs. 8 Cut the stoplight / turn signal power wires to the center bulbs 9 Cut the stoplight / turn signal and tail light power wires to the outer most bulbs. 10 Run the original stoplight / turn signal power wires in the car harness to the outer most bulbs. 11 Cut the output wire from the brake light switch under the dash and splice in a new wire to run to the inner most and center bulbs. 12 Verify that the turn signals flash at a good speed, you may have to use a different flasher to get the correct flash speed. 13 remove the tail light housings. 14 CAREFULLY take them apart. The clear lenses are sealed to the base and will crack easily if you get in a hurry. I start at the bottom of the lens, unclip the locks, pry it apart just a tiny bit. The unclip the top and then work my way around SLOWLY. 15 cut out a section of the inner red lens to the outer bulb area. 16 put everything back together with sealer. 17 use an amber colored bulb in the outer most sockets 18 cut the power wire to the reverse light bulb socket. 19 Run the original stoplight / turn signal power wires in the car harness to the socket 20 install an amber bulb.

[This message has been edited by buddycraigg (edited 01-08-2008).]

Thanks Buddy this seems easier now its just a matter of finding out where to cut and splice.
So any idea what the two relays on my firewall are for?
I was assuming those were for the lights but if not I'm not sure what they would be used for.
Maybe the radiator fan and accessory blower that was in the trunk?
I will try and track this down tonight.. Thanks for the help.

quote Originally posted by rstubie: So any idea what the two relays on my firewall are for?

you're welcome
they control the AC compressor clutch and the fuel pump. they are interchangeable.
if you had an 84, there would be 2 more relays below them for the brake lights.

It's very easy to make the brake and turn lighs independant of eash other and you dont have to wire into any relays.In a duel filament bulb,one is for the tun signal and one is for the brake.They both share a common ground.You can split one ground into two or add a new ground from the chassie to the bulb.You could probubley allso use a ground from any of the other tail light bulbs your not going to use.Its easy to figure out what wires are what,by useing an old 12V bulb and socket with the leads still attached.
Pic of the relays,I think your talking about.

quote Originally posted by James Bond 007: It's very easy to make the brake and turn lighs independant of eash other and you dont have to wire into any relays.In a duel filament bulb,one is for the tun signal and one is for the brake.They both share a common ground.You can split one ground into two or add a new ground from the chassie to the bulb.You could probubley allso use a ground from any of the other tail light bulbs your not going to use.Its easy to figure out what wires are what,by useing an old 12V bulb and socket with the leads still attached.

i dont even know what to say...

[This message has been edited by buddycraigg (edited 01-08-2008).]

Okay I checked out the relays of which I only have two. Yes not anything to do with tail lights.
Back to the tail lights. I split everything apart into what I need which is as follows:
1)Single filament tail light RH and LH Brown + blk grd
2)Dual filament tail light and brake light RH Brown, Green, +blk grd
3)Dual filament tail light and brake light LH Brown, Yellow + blk grd
4)Single filament blinker RH added a new wire Red + blk grd
5)Single filament Blinker LH added a new wire Blue + blk grd
6)Single Filamnet backup light RH LH used existing Lt green + blk grd

Okay so basically I have the wires I need to run the bulbs the way I want.
Problem now is the brake lights Green & yellow wires are hot when the brake is depressed and turn signal is used. Only want them to come on with the brake switch.
The two wires I added Red & Blue I can splice into the front blinkers and grab power there I suppose.
That way the blinkers wont be on when I depress the brake.
Anyone have a good idea how to kill the power to the brake lights when the turn signal is used?
I know this sounds very confusing but hopefully I made sense.

Take the red and black wires off of your single filament blinker lights.
Cut the green and yellow wires at the socket, LEAVE ENOUGH WIRE TO SPLICE NEW WIRES ON TO THE SOCKET.
Attach the green wire from the harness to the RH blinker
Attach the yellow wire from the harness to the LH blinker.
Now the turn signals are wired.


(you can start on the RH and go to the LH if you prefer to run the new wire in side the car on the drivers side)
On the brake light sockets on the LH.
Splice a red wire in to the yellow wire left on the sockets.
Run that wire over to the RH.
Spice that same red wire in to the green wires left on the sockets
And run that wire inside the car under the dash.

There are 2 wires on the brake light switch.
One is hot all the time, the other goes to the turn signal switch.
Cut the wire going to the turn signal switch, leave enough to splice into by the brake light switch.
Splice the red wire in to the wire on the brake light switch.

Now you’re done, except you may have to get a different flasher for the turn signals.
An EL-12 can be bought at most auto part stores for less than 10 bucks.

I think I understand but to clarify basically what your saying is I should have used the Yellow and Green wires for my blinkers and not the brake. So i only need one extra wire which you picked the red one and use that as the brake signal. Tie the Red into both RH & LH and my 3rd Brake light which I have forgotten up to this point. Pull the brake signal directly from the brake switch and take out the loop thru the turn signal.. Right?
I will try this tomorrow and let you all know how it turns out.. Many Thanks.

yes to everything you said.
except...

you should not have a 3rd brake light.
are you talking about the one in the middle of the window?
they didn't put those on 85s.

Correct I didnt have a 3rd brake light in 85 but I need to add one.
So I'll tie that into the brake switch also.
Thanks again

glad to hear you got past this bump in the road.
keep us posted with pics (we all like pics) of your rebody