Turn Signal Switch

[enjenjo]

Any one have any ideas for wiring a 4 wire  turn signal switch , so the stop lights can be run though the same wires, and work on the same bulb?

[WZ JUNK]

Any one have any ideas for wiring a 4 wire  turn signal switch , so the stop lights can be run though the same wires, and work on the same bulb?

Tell me more about your 4 wires.  I like this kind of question.

John

[tom36]

Would something like this do what you want???
http://www.delcity.net/store/Trailer-:-Tail-Light-Converters/p_9036.a_1

Tom...

[wayne petty]

just curious...

do you have a switch...    

or do you need a switch and how to wire it..

something like a four pole... double throw...

http://www.allelectronics.com/make-a-store/item/STS-71/4PDT-ON-OFF-ON-TOGGLE-SWITCH/1.html

4.P.D.T., Center-off toggle switch. Standard 11/16" long bat handle, 15/32" threaded bushing mount. Rated 10A/250Vac, 15A/125Vac. Screw terminals.


http://www.allelectronics.com/make-a-store/item/STS-72/3PDT-ON-OFF-ON-TOGGLE-SWITCH/1.html

3 Pole, double-throw, center-off, toggle switch. 0.36" wide paddle-type toggle handle. Standard 15/32" threaded bushing mounting. Rated 10A 250 Vac, 15A 125 Vac, 3/4 HP 250 Vac. 0.25" qc/ solder terminals. UL, CSA.

this would be the right one if it had more poles..

http://www.allelectronics.com/make-a-store/item/STS-79/DPDT-ON-OFF-ON-MOMENTARY-TOGGLE-SWITCH-20A/1.html

Heavy-duty, standard size toggle switch. D.P.D.T., center-off, momentary both directions. Rated 20A @125Vac. 15/32" threaded bushing. Screw terminals.

and this last one might actually work... i have to find where i left my switch and relay logic hat... so i can concentrate...

if you want one of these... i might be near the place that sells them.. or an even larger surplus store friday or saturday..   i am taking that you have my cell phone number...


all these switches are available through various vendors usually by moving the decimal point at least one position to the right..

[kb426]

It takes 3 wires plus ground to run all the functions on trailer lights. Is this what you're after.

[enjenjo]

I have a switch. It's an old self canceling add on, Cole Hersee brand. It has four wires, flasher, left turn, right turn, and pilot lamp. I know about the Del City convertor box, but wondered if there was a simple way to do it.

[wayne petty]

perhaps...

this would help...   edit... nah... those are for regular rocker switches... sorry...


http://www.colehersee.com/home/wiring_diagrams/


i just ran across this on their site...  2000 amp master disconnect switch.. 300 amps continuous    1/2" studs for the wire to connect to.....

http://www.colehersee.com/home/item/cat/208/75908/

[WZ JUNK]

Well, it is the middle of the night and I can not sleep but I think you could do it with a couple of relays.  The brake lights would be powered all the time and the turn signal switch would activate a relay that would turn off the power and allow the light to flash on either side you select.  The front turns would pull power ahead of the relay so that they would not affect the brake light part of the circuit.  It might take 4 relays to do this.

It will be interesting to see if I can draw this up in the morning.

John

[WZ JUNK]

I will try to explain this in theory, verbally.  Later this morning I will test this circuit and I can give more details.  Since I do not have that switch to test, I will have to wing it some.  That wire for the flasher and the one for the indicator light are a problem.  I am trying to work around back feeding into the other side of the circuit and I think it could be done but I am going to eliminate those two problems two wires for now.

You will need two flashers, two normally open relays and two normally closed relays.

The brake light circuit will start with power, then through the brake light switch, then to each of the normally closed relays and then from each of these on to each of the stop/brake elements of light bulbs.  A seperate relay and circuit for each of the brake lights.

The turn signal switch begins with power to a two prong flasher, then to the switched leg of the normally open relay, and then on to the same stop/turn element  Another circuit comes from the turn signal switch to the switching part of each of the relays.

How it should work.   When you activate the turn signal switch (whether the brake lights are on or off) it will turn off the power to the brake part of the circuit, on the side you want to flash, and at the same time turn on power to make that bulb flash.

I hope this will work.

John

[wayne petty]

thanks john for finding my relay logic hat....





.
.
.this is just an idea....   i have not figured out how to supply the turn signal indicators.. or front turn signals ... without getting the stop lights involved..

this is probably why john is thinking of 4 relays...
.
this is also using the bare minimum of parts.
.
.
adding  2 more relays for the front lights..  

with the flasher above center connected again to both 87A relay terminals.
pin 85 are grounded ...
pin 86 are hooked like the shown to left and right turn signal switch output.
pin 30 would go to the individual left and right front turn signal switches and to the left and right indicator lights..

this addition would give you rear stop and turn..  front turn and indicator..
.
.
.
.
.

[enjenjo]

That doesn't look like it would work to me Wayne, it appears that the bulb would be on all the time, just powered by diffent sources. Correct me if I am wrong. I can see how it can be done with 4 relays.

[wayne petty]

it looks strange.. but it should work...

let me go though the circuit..


stop lights only..
power to the stop light switch...  then only output when you step on the brakes...  to pin 87 NC contact to pin 30 to the brake light filaments.


turn signal only....      left turn signal switch sends power to the left relay closing the contact...   this connects the NO contact from the turn signal flasher (not routed through the turn signal switch)  to pin 87A to pin 30 and the bulb.. . this should make the flasher flash cycling the bulb on and off..


your turn signal assembly does not flash power... it switches constant power to control the relays.. left or right.. .

there should not be any feed back from pin 87  as the contact is open on the relay that is powered...

i will work on drawing wires on the diagram above later..
i did try it.. but it looked like crud...


if you want to do hazard flashers... that would require if you do 4 relays  a 4 pole switch... by bridging the power to each of the poles..    then tie into pin 86 on each of the relays with an individual pole of the switch...  when you do this.. you switch all the relays on... and all 4 bulbs are now getting power from the flasher through terminal 87A..

you could use a single pole switch with 4 diodes to prevent feedback  to control the hazards..


activating the any of the relays connects the flasher to the bulb for that relay..

stepping on the brakes.. sends power straight through the relay to the bulb...

i have a 8 pack of 12 volt relays here..  i don't have enough socket assemblies.. but i might be able to pick them up ...  there are dual relay sockets used for window controls... that would mount 2 relays together.. it would take repinning some of the locations.

[WZ JUNK]

I did not get back to this project today as I have been painting some parts and that took up my shop time.  Now I have to go drive.  I will try to get back to it tomorrow.

John

[WZ JUNK]

I will try to give my short answer because I do not have the time today to make a drawing and post it.  I built a test circuit today and it appears to work correctly.  I used a 2 prong flasher and a common relay for each side of the turn signal circuit.

The brake lights are wired through the relay so that they will work when you push on the brake pedal and the brake light switch activates them.  When you turn on the turn signal,  the relay flips to the other position and isolates that side or turns off the brake light for that side,  and the same feed, from the turn signal switch turns on the flasher circuit and then the signal lights for that side.  Since it is not connect to the brake circuit, it can light the front and rear bulbs and the indicator light.

I will post a detailed list and a drawing later.  It is hard for me to post the circuit drawing.

John

[enjenjo]

Email me the drawing, and I can post it.