Trailer Wiring connection fubar

[jerg_064]

Have hooked up to three different trailers so the problem is with the truck.

Running lights and blinkers don't work (on trailer), but for some reason come on solid dim when Hazards are turned on. The trailer brakes hit hard with the blinking of the left turn signal, nothing with right signal...And trailer brakes hit hard as soon as you touch the brake pedal, no gradual braking....

I checked with a multimeter and I am getting intermittent voltage to the trailer brake connector on the 7 pin when the left blinker is on, and if you touch the brakes at all it goes straight to 12.XX volts as well. (KOEO) Which I would think indicates a short, yet there's no continuity between them with power off.

Anybody ever have similar problems?

Also I think this may be PART of the problem, it looks like a PO spliced both turn signal wires on the 4 pin into the running lights wire of the 7 pin...Is this factory, could one of y'all just take a look at yours?

[jerg_064]

Found the problem....either from the factory or put on by a PO and just no one ever noticed or cared. The pin out from the factory square plug doesn't match the pinout for the trailer connector. I think the 4 pin would work, but the 7blade is fubar.....Can't really find any direct replacements for the '03, suppose I'll have to check the dealer on Tuesday.

[jesilvas]

Pollack (sp?) Has plenty of harnesses that you need. Oem

I made my Samsung SGH-I997 send this.

[jerg_064]

Unless they're just not listed anywhere on the Net and you have to call, I'm not seeing them......I see kits for the 99-01 year that's the parts I need, and I think that's what a PO tried to use. But as I said the square connectors pin-outs are different.

Tousley sorta has it listed, but no diagram or real part number. I'll try salvage yards this week first. If still no luck there's a Hopkins 5th wheel extension that shows the right pinout/MY and I'll just hardwire the rear.

[jesilvas]

We have one in our store that would work but I can't find em.
Here - Electrical Wiring - Reese
Electrical Wiring - Reese
I'm not sure which one's right for you.
For me, the first one is right.

[jerg_064]

Already checked both those out.....The 118243 is the type I need, but it's 99-01 pinout. I think it's what was put on my truck or something like it that's Ford Factory.

The 20119 picture shows the wrong vehicle side connector. Should be square like the 118243.

Pinout should look something like this to match my vehicle side
O..o.O
..oo...
..o....
O....O
The trailer connector I got looks something like this
O.oo.O
.........
.........
O.oo...

If you look at the square pinouts you'll know what I'm trying to say.

[jesilvas]

I understand now.
That's weird it's like that. I'm like you; I'd rather have an OEM connection that I can undo but could hard wire if I had to.

[richsoucie]

heres the one i got it works great on my 06

Amazon

Amazon

[jerg_064]

Originally Posted by richsoucie

heres the one i got it works great on my 06 Amazon.com: Hopkins 40975 7-Way Round / 4-Way Flat Socket and Bracket: Automotive

Not seeing anywhere on there that says it has the OEM square connector wire harness...The entire point of this thread. That's just the socket, I have one of those

[jerg_064]

Local dealer said mine must be the wrong model year (after I told them), then said they could get me a new one for $190+tax....ppssshhhh

I'm just gonna get the Hopkins 40167 5th wheel adapter and hard-wire the rear end. Double my outlets for about 1/4 the cost.