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02-01-2015, 11:53 AM
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#1
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Rivet Master  
1966 26' Overlander
Woodstock
, Georgia
Join Date: Feb 2002
Posts: 8,525
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'06 Expedition 4 pin to 6 pin connector
Well I did it again. I truly disliked my 03 Chevy Trailblazer, so I traded it on an 06 Expedition 5.4 V8.
This one has the brake controller connector under the dash-- thats good.
But it has a 4 pin at the back. I need a 6 pin to connect to my 66 Overlander.
I see the 4 wires connected to the current plug and what looks like an extra wire taped off.. Would that be the other wire I need to connect? Its the blue one in the photo.
Guessing I only use 5 wires on the 6 pin .. thanks all
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02-01-2015, 01:13 PM
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#2
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Rivet Master
2006 23' Safari SE
Biloxi
, Mississippi
Join Date: Nov 2011
Posts: 8,278
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__________________
MICHAEL
Do you know what a learning experience is? A learning experience is one of those things that says "You know that thing that you just did? Don't do that."
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02-01-2015, 03:12 PM
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#3
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Rivet Master
1974 Argosy 20
2014 20' Flying Cloud
Kooskia
, Idaho
Join Date: Jul 2009
Posts: 4,591
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In general the blue wire is the one which goes to the brake controller and should appear under the dash so it can be connected to the brake controller itself.
The last wire you need is the + 12 volts for the charge from the towing vehicle to the Airstream. So you will use 6 of the 7 pins on the typical cord. Usually the center large round pin is unused.
Brake/signal left
Brake/signal right
running lights
electric brakes
+ 12 volts
- 12 volts (ground)
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02-02-2015, 05:20 AM
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#4
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Rivet Master
1986 34' Limited
1975 27' Overlander
1969 21' Globetrotter
Conifer
, Colorado
Join Date: Jun 2009
Posts: 8,311
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Here is the "trailer exterior lights" wire color and position from my 66 Trade Wind manual. I forgot my Trade Wind has back up lights, so I needed a seventh wire.
The information should help you convert your Expedition from 4 pin to "seven pin" trailer connector.
Maybe this diagram will assist with the pin locations in our Airstream pigtail. The wire colors Airstream used in 66 aren't the same as used in newer trailers.
David
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02-02-2015, 06:12 AM
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#5
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Rivet Master
2020 28' Flying Cloud
Upper St Clair
, Pennsylvania
Join Date: Aug 2011
Posts: 2,943
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Hard to tell from the picture, but it looks like your arrow goes to an inline fuse, if this is the case my guess is that would be a wire from your alternator to charge your coach batteries.
Not a wiring expert but been through this more times than I care to think about.
__________________
2020 28' Twin Flying Cloud
2021 F350 6.7 King Ranch
USAF Master Training Instructor (TI) & (MTI)- 68-72
Volunteer K9 Rehabilitator & Trainer
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02-02-2015, 08:48 AM
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#6
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Rivet Master
1999 34' Excella
Currently Looking...
Hillsboro
, Texas
Join Date: Feb 2013
Posts: 6,408
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On our TVs we have found the 'modular' kit for plugging directly into OEM works very well. That way you don't have to wire/solder.. just remove existing and plug in the new..
__________________
Peace and Blessings..
Channing
WBCCI# 30676
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02-02-2015, 09:14 AM
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#7
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Rivet Master
1966 26' Overlander
Woodstock
, Georgia
Join Date: Feb 2002
Posts: 8,525
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can you post a link to that modular kit? Please
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02-02-2015, 09:19 AM
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#8
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Rivet Master
1966 26' Overlander
Woodstock
, Georgia
Join Date: Feb 2002
Posts: 8,525
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I found the adaptor on etrailer...guess I will go with it
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02-02-2015, 10:17 AM
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#9
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Rivet Master
1998 31' Excella 1000
1979 23' Safari
Mooresville
, Indiana
Join Date: Aug 2007
Posts: 598
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You might also need to install a relay in the relay/fuse box, check and make sure it has the relay for trailer power. Your Expedition doesn't have the full towing package, so it's not included. We had to add this relay when I added the 6 pin to our Expedition.
Damon
#4827
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02-02-2015, 10:55 AM
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#10
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Rivet Master
1966 26' Overlander
Woodstock
, Georgia
Join Date: Feb 2002
Posts: 8,525
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Since I don't carry a trailer battery I probably don't need that relay. Just lights and brakes for us.
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02-02-2015, 11:07 AM
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#11
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Moderator
2017 26' Flying Cloud
Alamo Heights
, Texas
Join Date: Aug 2006
Posts: 8,520
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Quote:
Originally Posted by ALANSD
Since I don't carry a trailer battery I probably don't need that relay. Just lights and brakes for us.
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So you don't have a breakaway switch for your brakes? (That wouldn't necessarily require the charging relay, but it WOULD need a battery to work.)
__________________
— David
Zero Gravitas — 2017 Flying Cloud 26U | WBCCI# 15566
He has all of the virtues I dislike and none of the vices I admire. — Sir Winston Churchill
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02-02-2015, 04:33 PM
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#12
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Rivet Master
2013 31' Classic
billings
, Montana
Join Date: Feb 2010
Posts: 3,577
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 No battery , no breakaway brakes, not good..
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02-03-2015, 10:27 AM
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#13
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Rivet Master
1966 26' Overlander
Woodstock
, Georgia
Join Date: Feb 2002
Posts: 8,525
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 no battery.
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02-03-2015, 10:34 AM
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#14
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Rivet Master
1999 34' Excella
Currently Looking...
Hillsboro
, Texas
Join Date: Feb 2013
Posts: 6,408
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Alan.. Is the breakaway brake a State requirement?
__________________
Peace and Blessings..
Channing
WBCCI# 30676
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02-03-2015, 11:50 AM
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#15
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Rivet Master
1966 26' Overlander
Woodstock
, Georgia
Join Date: Feb 2002
Posts: 8,525
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No according to law here; Breakaway Not Stated
I am sure I pass through states where it is ..I am just a renegade
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02-03-2015, 12:01 PM
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#16
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Rivet Master
1998 31' Excella 1000
1979 23' Safari
Mooresville
, Indiana
Join Date: Aug 2007
Posts: 598
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Trailer Brakes | AAA/CAA Digest of Motor Laws
Georgia
Every trailer of 3,000 lbs. GVWR or more must be equipped with brakes on all wheels.
https://dps.georgia.gov/frequently-asked-questions-mccd
Q: Does my trailer have to have brakes?
A: Yes, if the gross weight of the trailer (weight of trailer and load) is over 3,000 lbs.
Q: What brakes are required?
A: Operative service brakes on all wheels, a parking brake system, an emergency brake system, and a breakaway braking system. The parking and emergency systems can be combined.
Damon
#4827
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02-03-2015, 03:25 PM
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#17
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Rivet Master
1966 26' Overlander
Woodstock
, Georgia
Join Date: Feb 2002
Posts: 8,525
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parking brakes?
This is for commercial trailers..those that carry and deliver.
But...
we are getting way off topic here.
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02-03-2015, 03:39 PM
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#18
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"Cloudsplitter"
2003 25' Classic
Houstatlantavegas
, Malebolgia
Join Date: Jun 2007
Posts: 20,000
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Quote:
Originally Posted by ALANSD
parking brakes?
This is for commercial trailers..those that carry and deliver.
But...
we are getting way off topic here.
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3000lb commercial Trailer with a MiniCooper tractor.....
Bob
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02-04-2015, 08:21 AM
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#19
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Rivet Master
1966 26' Overlander
Woodstock
, Georgia
Join Date: Feb 2002
Posts: 8,525
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Once again Etrailer came through for me. They sent me the adapter and specific directions for which wires to splice on my 2006 Expy. Nice service.
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02-04-2015, 07:48 PM
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#20
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Rivet Master
2013 31' Classic
billings
, Montana
Join Date: Feb 2010
Posts: 3,577
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 You better check on breakaway brakes, they lock up when the trailer becomes disconnected from the tow vehicle, and this does not apply to only commercial vehicles, as all car trailers and travel trailers have them from the factory.. Bad news if trailer becomes disconnected and hits someone and doesn't have the breakaway brakes ...
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