Reverse light wiring

[dataustin]

Dyno, where did you might your aux switch?

 

[DynoDynge]

Thanks Dyno. So, dual sources (power from reverse lights and from aux switch) connected to the same tap?

Yes, it is isolated by the relay & prevents back feeding into the other circuit

---------- Post added at 09:11 PM ---------- Previous post was at 09:08 PM ----------

Dyno, where did you might your aux switch?

3m taped to the side of the trailer receptacle. Flat black & not even noticeable unless you know it's there. Go2Marine has the switches in stock

 

[The Car Stereo Company]

that is a reverse polarity 5 wire system. not quite what you would want to use in this situation.

i would use a spdt relay. that way the normally closed circuit can be on a switch and then the reverse lights can activate the relay as backup lights. that way it also eliminates the need for a diode.

 

[Icecobra]

Thanks Ice. I guess another alternative is two use two relays with +12 tied together like this....

You can do this or spend 50 cents and just buy a diode...

 

[dataustin]

Ice, put a .50 part on a 50,000 truck?

 

[Icecobra]

Ice, put a .50 part on a 50,000 truck?

Well yea you just place a diode on the 2 12volt sources and it prevents voltage from going the other way.. No need for added relays or switches.. so its a buck if you have to buy two...

 

[dataustin]

You do know I was trying to be funny.... It has been a while since my last electronics class....are diodes wattage rated?

---------- Post added at 11:25 AM ---------- Previous post was at 11:21 AM ----------

Please disregard that last question...

 

[DynoDynge]

Dyno, where did you might your aux switch?

Here's a pic of the mounting location. As I said, you wouldn't know it was there unless it's pointed out

 

[dataustin]

Awesome idea!

 

[badmonkey]

Old thread, I know, but I have a question for Noah or anyone else with the info. Where does the trailer receptacle get its +12v from. I'm not getting power to the orange wire, which is labeled +12v. Is this supposed to be a constant 12v or switched? In the owners manual, it says it gets power from relay #9, but where is it fused? And what switches the relay? I'm trying to connect my reverse lights to a switch and I don't want to have to run power all the way back to the trailer wiring, where I'm working.