[AT] @!#%^% Trailer Wiring

[Thomas O. Mehrkam]

Concerning the trailer wiring.

I assume that the six pin connecter you are talking about is the one 
usually used for Horse trailers.

Unfortunally there are two standards. There is the Hourse trailer 
standard and the RV standard.

One standard puts the center pin as an AUX pin. This is normally a 
battery pin for charging the break away battery.

The other standard puts the center pin as the brake pin. The two pins 
are swapped. Most of the adapters have some method of swapping tese two 
wires.

You can purchase them wired either way, Normally they are labled as to 
which standard they meet.

http://hitches4less.com/7rvblto6pine.html
http://hitches4less.com/7rvblto6pina.html
http://hitches4less.com/4flto6rom.html

Doug Tallman wrote:
>>Also, factory wiring loom on my '95 F150 isn't labeled for an AUX power /
>>trailer battery charge circuit.  It has a BLUE wire for brake, as it should,
>>but an ORANGE and BLACK that are apparently neither grounded or hot at any
>>time.  Another sigh...
>>
>>I don't know if I have a question or not, unless someone has ever fought a
>>F150 of that era.  I'm just typing this instead of cussing.....
>>
>>_______________________________________________
> 
> 
> Len, one of the accounts I service has a fleet of F350 box trucks. They use
> the factory trailer harness for power to the box. On these, the blue and
> the orange are hot all the time. They seem to have a problem where the
> harness runs behind the cab. There's a harness coming down out of the
> driver's side rear corner that Ts into the harness running frt to back
> along the frame rail. I find a lot of the blue and orange wires broke in
> that area for some unknown reason. Don't know if this will apply to you but
> it may be a place to look. Also those circuits are individually fused in
> the underhood fuse box. Even separate fuses for rt/lft brake and turn. Good
> luck!
> 
> 
>                                                       
>            Doug Tallman                 
>            dtallman at accnorwalk.com                 
>            VGTCOA Ohio Regional Director  
>                Greenwich, OH USA                         
>              
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