Notices
2004 - 2008 F150 2004, 2005, 2006, 2007 and 2008 Ford F150's with 5.4 V8, 4.6 V8 engine
Sponsored by:
Sponsored by:

Brake controler

Thread Tools
 
Search this Thread
 
Old Jan 19, 2007 | 09:09 AM
  #16  
atone315's Avatar
atone315
New User
Joined: Jan 2007
Posts: 5
Likes: 0
Yeah, if you have a battery on your trailer you are going to want to install the relay. The power lead replaces the need for a trickle charger.
 
Reply
Old Jan 19, 2007 | 11:55 AM
  #17  
tooldad's Avatar
tooldad
Elder User
Joined: Jan 2007
Posts: 547
Likes: 0
Awesome. That's one more item OFF my list to do. Thanks for the intel.
 
Reply
Old Jan 19, 2007 | 01:19 PM
  #18  
goatdriver's Avatar
goatdriver
Mountain Pass
20 Year Member
Joined: Mar 2004
Posts: 170
Likes: 1
Yes, very much appreciate everyone's help!!!!
 
Reply
Old Jan 19, 2007 | 01:48 PM
  #19  
04 FX4 Lineman's Avatar
04 FX4 Lineman
Elder User
Joined: Jul 2006
Posts: 611
Likes: 0
Tooldad: I am not sure if we are all ont he same page here the charging circuit is for the battery on a travel trailer for inside lites etc. if your brake away switch is hooked to that you are fine but if we are talking a small utility trailer the breakaway battery will not be charged if you are using a 4 pin plug just for lites!!!!!
 
Reply
Old Jan 19, 2007 | 03:24 PM
  #20  
tooldad's Avatar
tooldad
Elder User
Joined: Jan 2007
Posts: 547
Likes: 0
04 FX Lineman - I have the tow package with 7 pin connector and am using a 7pin to six pin adapter to a 6x16 tandem axle "landscape" trailer with dual brakes and brakeaway brakes. Will have to reconfirm the adapter connections, but believe power is being delivered to the battery (have not yet confirmed, new setup).
 
Reply
Old Jan 19, 2007 | 04:47 PM
  #21  
04 FX4 Lineman's Avatar
04 FX4 Lineman
Elder User
Joined: Jul 2006
Posts: 611
Likes: 0
Tooldad double check me but I am not sure you will be charging your break away battery with that set up??? Let me know what you come up with.
 
Reply
Old Jan 19, 2007 | 05:28 PM
  #22  
atone315's Avatar
atone315
New User
Joined: Jan 2007
Posts: 5
Likes: 0
Ye, exactly correct 4 way will not charge battery. The 7 way has 2 different posts that are powered by 12+. One is for battery charge and the other is generally referred to as AUX. POWER. A 7 way to 6 way adapter should include one of those poles to the trailer supplying it with 12+ to the breakaway. Note- 7way to 4way adapter does not include 12+, if you are wondering. Hope this helps....
 
Reply
Old Jan 20, 2007 | 05:01 PM
  #23  
goatdriver's Avatar
goatdriver
Mountain Pass
20 Year Member
Joined: Mar 2004
Posts: 170
Likes: 1
Why wouldn't they just put the relay in the fuse panel in the first place? If someone did not have a trailer hooked up, it wouldn't hurt anything. Looks like to me that they would just put the relay in at the factory. At any rate, i plugged mine in.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-1

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
story-2

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-3

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-4

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-5

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-6

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-7

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-8

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-9

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
Old Jan 20, 2007 | 07:01 PM
  #24  
atone315's Avatar
atone315
New User
Joined: Jan 2007
Posts: 5
Likes: 0
on the few F150 out there that don't have a 7way wiring install it would leave live 12+ wire at back of truck- plus I am sure there are dealers out there charging .5 hours labor to install relay.
 
Reply
Old Jan 21, 2007 | 02:28 PM
  #25  
goatdriver's Avatar
goatdriver
Mountain Pass
20 Year Member
Joined: Mar 2004
Posts: 170
Likes: 1
Good point!
 
Reply
Old Jan 26, 2007 | 07:59 PM
  #26  
jbrist's Avatar
jbrist
New User
Joined: Jan 2007
Posts: 13
Likes: 0
Last week I purchased a '05 F150 w/tow pkg.
Today I had the brake controller installed. The
mechanic pointed out that I needed the relay,
so I stopped by the nearest Ford dealer to purchase
the relay. The parts man said he had no way to identify
the part number for the relay I needed.
My question - Can anyone on this forum give me the part
number of this relay and tell me where it can be purchased?
Thanks,

jbrist
 
Reply
Old Jan 27, 2007 | 06:21 AM
  #27  
IB Tim's Avatar
IB Tim
FTE Leadership Emeritus
20 Year Member
Veteran: Air Force
Joined: Jan 2003
Posts: 161,999
Likes: 75
From: 3rd Rock
Club FTE Gold Member
...Welcome jbrist to Ford Truck Enthusiasts!

Stick around someone will be by shortly to answer your question.
We are happy you have chosen the best source for Fords!

Enjoy FTE....and
JOIN CLUB FTE -SUPPORT THE FORUMS!
…..See you on the boards.
 
Reply
Old Jan 27, 2007 | 09:10 AM
  #28  
goatdriver's Avatar
goatdriver
Mountain Pass
20 Year Member
Joined: Mar 2004
Posts: 170
Likes: 1
Mine plugged into an open slot between 2 existing ones. I think I remember that the number on the trailer relay was the same as the 2 existing ones, but I will check. If so, you can get the number off of one of the existing ones!
 
Reply
Old Jan 27, 2007 | 09:31 AM
  #29  
jbrist's Avatar
jbrist
New User
Joined: Jan 2007
Posts: 13
Likes: 0
Thanks goatdriver,
The other five relays are all the same-
5C3T-4B192-AA P6STD

So I guess I'll try to find the same relay
as the others.
Thanks again,
jbrist
 
Reply
Old Jan 27, 2007 | 09:48 AM
  #30  
jbrist's Avatar
jbrist
New User
Joined: Jan 2007
Posts: 13
Likes: 0
After double checking that relay number,

it actually is 5C3T-14B192-AA P6STD.

jbrist
 
Reply



All times are GMT -5. The time now is 12:51 PM.

story-0
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-1
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-2
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-3
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-4
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-5
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-6
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-7
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-8
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-9
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE