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This has been asked before, but nobody seems to know for sure. If you know, can you please label what the pins are? Some think it is for the in-bed trailer harness, others think it's to connect a camper shell lighting. Does anyone know for sure?
Location is next to the spare tire on my 2011 f250
The OEM Ford in-bed RV harness plugs into to both of those. I can verify 100% because I added the OEM harness myself and plugged directly into those. Most aftermarket harnesses have a piggyback plug that attaches at the harness of the existing plug on the receiver hitch.
The OEM Ford in-bed RV harness plugs into to both of those. I can verify 100% because I added the OEM harness myself and plugged directly into those. Most aftermarket harnesses have a piggyback plug that attaches at the harness of the existing plug on the receiver hitch.
Great! Do you know the pin assignment? I would like to wire some rear lights into it.
Other than taking 5 minutes to check them with a test light, I got nothing for you there. I know a member that has a lot of the schematics. I'll PM him to see if he has this one.
Good info Thx
Have back up lights installed that I power from up fitter switch, would like to power them from this connection so they come on when in reverse also, know that diode will be involved in wiring it up but unsure where it needs to be installed or what size to use.
Any help on placement of diode would be great. Thx
Good info Thx
Have back up lights installed that I power from up fitter switch, would like to power them from this connection so they come on when in reverse also, know that diode will be involved in wiring it up but unsure where it needs to be installed or what size to use.
Any help on placement of diode would be great. Thx
<pre>
upfitter---------------------------------------------------------new lights
| diode direction open from reverse to new lights
reverse wire -------------------------- normal backup light
</pre></pre>
is this on all 11+ F250s or is this part of a prep package?
I have heard of a few 11+ trucks that do not have those connectors. I'm not sure what options put the wiring there but it is where the factory prep package plugs in.
ok i crawled under the back of my truck and looked all around the spare tire and didn't see anything like that on my truck.... that sucks big ones lol first i dont have the plug under the door for puddle lights now i dont have this one for easy rear light wiring... i guess i am gonna have to get to know my wiring harness really well...
unless this is hidden above the spare tire witch i didnt remove
<pre>
upfitter---------------------------------------------------------new lights
| diode direction open from reverse to new lights
reverse wire -------------------------- normal backup light
</pre></pre>
Sam, I don't think that it would highjack the thread, so I have a question that I think applies to the back up lights as well as rear view camera.
I used a 2 diode configuration so that I could power up a rear view camera when in reverse and with an upfitter switch. Because it is powered from two sources and I didn't want the back up lights coming on when I turned on the camera via upfitter and didn't want to back feed 12V from the reverse circuit to the upfitter circuit. Not sure if I did it right, but it works.
Since the OP is dealing with back up lights, that is the reason that he only needs 1 diode right? To keep from back feeding the upfitter circuit?
Sam, I don't think that it would highjack the thread, so I have a question that I think applies to the back up lights as well as rear view camera.
I used a 2 diode configuration so that I could power up a rear view camera when in reverse and with an upfitter switch. Because it is powered from two sources and I didn't want the back up lights coming on when I turned on the camera via upfitter and didn't want to back feed 12V from the reverse circuit to the upfitter circuit. Not sure if I did it right, but it works.
Since the OP is dealing with back up lights, that is the reason that he only needs 1 diode right? To keep from back feeding the upfitter circuit?
when the upfitter is off, the outbound leg is disconnected from everything.
when the upfitter is on, the outbound leg is connected to power, and power from A is the same as power from B. the only time you might be interested is if there was something on the OTHER side of the upfitter relay switch that got powered accidentally (if the upfitters had NO power on the upstream side, and suddenly you provided it back thru one relay. but the other side of the upfitters is power al the time the key is on, so no harm done)
it does not hurt to have the second diode to prevent electrons from flowing towards the upfitter switch, but it is not needed.
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