No left tail/signal to trailer plug

[Grunt]

Not getting power to left turn signal and left brake light in 7 pin receptacle. All others function properly.

Thanks in advance

 

[Mark31]

I once thought I had a terminal gone bad and was getting ready to start tearing into things, before I found a small spider web. A cut-down fingernail emery works ok to clean up the plug. Look for the easy stuff first. Mark

 

[jelag]

On my 04. 5 and on my 05 there is a separate set of fuses in the fuse box for the left turn and right turn... so there are a set of fuses for the back of the truck... and a second set for the trailer plug... and in fact there are a full set of fuses to protect the trailer plug and its wiring... I'll bet its the fuse... I also have a brush for cleaning out the barrel of a . 17 rim fire rifle... . I put that wire brush on a drill motor and use it to clean out the plugs... I than coat the surfaces with a dielectric grease...

 

[Shadrach]

My 03 did the same and it was the fuse. David

 

[Prairie Dog]

Make sure what ever blew the fuse doesn't do it again. The power is supplied through a circuit board that will eventually burn out a trace if overloads happen too many times.

 

[Grunt]

Thanks loads guys!! Where are the different fuses located?

 

[jelag]

I can't give you the fuse numbers in the fuse box under the hood... . but mine are labeled LT signal, RT signal, and trailer LT, trailer RT etc... .

 

[Grunt]

thanks. . I was thinking there might have been a separate fuse box
A friends '03 doesn't have power to the 12v terminal on his receptacle and he tested all fuses. His was a dealer add on and he suspects they never connected the wire.