Ive got a actuator for the trunk of my 37 ford. It only has two wires coming out. The limit switches are in the unit. When you put 12v to it it goes up all the way and stops. It wont come down till you reverse the polarity and it will come all the way down. Ive only got one channel left on my remote. Need a relay set up that each time I put 12v to the relay(s) the polarity is reversed coming out to the actuator. So far ive got a high dollae DPDT latching twin coil realy. I need a way to switch back a forth the 12v input between the two coils each time I push the button.
https://www.the12volt.com/doorlocks/page4.asp#sppbdl
check this out. it seems it would be much simpler (and probably cheaper) to use a spst latching relay and a couple spdt relays for the reversing polarity setup which you can also find on the doorlock page. also one to convert the 12+ trigger to a neg. trigger. the outputs are then 12+. but you may need to then change the latched outputs to a short pulse using a couple more relays. there is a diagram for that as well on the relay link on this site. i cant think too well at the moment so if i were you i would definately get some more opinions. hope this helps if im right! good luck
Find me a link showing your relay and preferably a diagram and I will see what I can come up with.
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