Does anyone have a trunk wiring diagram? - Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum > Ford Focus Third Generation > MK3 Focus

MK3 Focus The place to chat about general questions, window tinting, exterior body, interior and lighting upgrades for the third generation 2012-Current Focus.

Search This Forum | Image Search | Advanced Search    
FocusFest

 



 
LinkBack Thread Tools
Old 02-23-2019, 05:02 PM  
Focus Enthusiast
 
Join Date: Feb 2015
Fan#: 222474
Location: Fairfield, CT
What I Drive: 2012 Red Ford Focus SE

Posts: 301
Points 2,840, Level 32
Points: 2,840, Level: 32 Points: 2,840, Level: 32 Points: 2,840, Level: 32
Level Up 60% Completed
Level up: 60% Level up: 60% Level up: 60%
Forum Activity 43%
Activity: 43% Activity: 43% Activity: 43%
FF Reputation: 1 acsmith1972 Good Standing Member
Buy-Sell-Trade Rating: (0)
Does anyone have a trunk wiring diagram?

My reverse lights don't work, but now my trunk is claiming to be open. It isn't. Brake and regular rear lights work fine so I'm guessing the trunk and reverse lights share a wire. Somewhere there must be a brake since the fuse is new as are the bulbs. This isn't a hatch, either. Does anyone know which wires it could be and where they come in from in the trunk?


acsmith1972 is offline  
    Quick reply to this message
Sponsored Links
Advertisement
 
Old 02-23-2019, 09:06 PM  
Focus Enthusiast
 
LonestarFF95's Avatar
 
Join Date: Nov 2015
Fan#: 276177
Location: Red Oak, AZ
What I Drive: 2019 Blk Ford Escape SE w/Sport Pkg

Posts: 269
Points 3,831, Level 39
Points: 3,831, Level: 39 Points: 3,831, Level: 39 Points: 3,831, Level: 39
Level Up 21% Completed
Level up: 21% Level up: 21% Level up: 21%
Forum Activity 2%
Activity: 2% Activity: 2% Activity: 2%
FF Reputation: 5 LonestarFF95 Good Standing Member
Buy-Sell-Trade Rating: (0)
You need to check the wiring harness that runs along the trunk hinge , the wires are known to break there and chafe

Sent from my SM-N960U using FF Mobile
LonestarFF95 is offline  
    Quick reply to this message
Old 02-27-2019, 01:24 AM  
Focus Enthusiast
 
Join Date: Feb 2018
Fan#: 387673
Location: El Cajon, CA
What I Drive: 2014 Focus Titanium-Soon To Be 2015

Posts: 100
Points 952, Level 16
Points: 952, Level: 16 Points: 952, Level: 16 Points: 952, Level: 16
Level Up 52% Completed
Level up: 52% Level up: 52% Level up: 52%
Forum Activity 5%
Activity: 5% Activity: 5% Activity: 5%
FF Reputation: 3 14 Titanium Good Standing Member
Buy-Sell-Trade Rating: (0)
The reverse lights are on a different circuit then the trunk latch. That can be caused from a bad reverse switch possibly. The trunk ajar signal is sent through a black wire from the latch to connector 410 then out of there turns into a yellow and orange wire to the body control module connector 2280B pin 47 if i remember right. You can use an ohm meter and see if there is a break in that wire somewhere. Sometimes just unplugging the connectors and plugging them back together fixes it. Connector 410 is located on the right side of the trunk behind the side panel. Hope this helps
14 Titanium is offline  
    Quick reply to this message
Sponsored Links
Advertisement
 
Old 02-27-2019, 05:06 PM  
Focus Enthusiast
 
SupraGuy's Avatar
 
Join Date: Feb 2019
Fan#: 410021
Location: Edmonton, Canada
What I Drive: 2012 White Focus 5 door Titanium

Posts: 136
Points 312, Level 6
Points: 312, Level: 6 Points: 312, Level: 6 Points: 312, Level: 6
Level Up 24% Completed
Level up: 24% Level up: 24% Level up: 24%
Forum Activity 41%
Activity: 41% Activity: 41% Activity: 41%
FF Reputation: 1 SupraGuy Good Standing Member
Buy-Sell-Trade Rating: (0)
Okay, I'm new to Fords, and my car is a hatch, so I can't check things for 100%, but every door/trunk/hood open indicator that I've ever seen is a single wire which connects to ground to indicate that the door/trunk/hood is open. A break in that wire will NEVER indicate that the trunk is open it will prevent the car from knowing when it is open.

The only way that these indicate that something is open when it isn't is if the wire is shorted to ground. This can happen where the wire goes near a hinge, or a pinch point. Check near the trunk hinges for damage to the wiring harness, particularly if something looks squashed. Close to the hinge point is the most likely place to find such damage. This might be from having something in the trunk that disrupted the normal pathing for the wire harness.

The reverse lights could have been damaged at the same time, they will go through the same wiring harness. Or the dmaage could have become worse. If the positive wire lead to the lights got shorted as well, you would probably blow fuses. If you have a backup camera, it could also be affected.
SupraGuy is offline  
    Quick reply to this message
Old 03-02-2019, 06:06 PM  
Focus Jr. Enthusiast
 
Join Date: Apr 2018
Fan#: 392442
Location: San Tan Valley, AZ
What I Drive: 2013 Tuxedo Black Metallic SE

Posts: 26
Points 119, Level 2
Points: 119, Level: 2 Points: 119, Level: 2 Points: 119, Level: 2
Level Up 38% Completed
Level up: 38% Level up: 38% Level up: 38%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 1 2k13se Good Standing Member
Buy-Sell-Trade Rating: (0)
had this problem on my sedan. There's a wire harness on the passenger side of the trunk. It's probably sliced somewhere. I had to add wire to mine and reconnect it so it had more room and won't break again. It was saying the trunk was open all the time and my trunk light wouldn't turn on. Once I fixed it problem solved
__________________
2013 Tuxedo Black SE
2.5 inch catback to Flowmaster Super 10 Muffler
Custom Short ram intake
18 inch Giovanna Genoa Chrome Rims
2k13se is offline  
    Quick reply to this message
Old 03-03-2019, 10:58 AM  
Focus Enthusiast
 
Join Date: Feb 2019
Fan#: 409817
What I Drive: 2012 Focus SEL Hatch

Posts: 172
Points 156, Level 3
Points: 156, Level: 3 Points: 156, Level: 3 Points: 156, Level: 3
Level Up 12% Completed
Level up: 12% Level up: 12% Level up: 12%
Forum Activity 15%
Activity: 15% Activity: 15% Activity: 15%
FF Reputation: 1 Smalls89 Good Standing Member
Buy-Sell-Trade Rating: (0)
A step in the right direction? Replacements are cheap(ish)

the wiring harnesses
sedan:
~$20 base #14405 -> Link: 14405



hatch
~$20 base #14404 -> Link: 14405
~$30 base #14A069 -> Link: 14A069


Last edited by Smalls89; 03-03-2019 at 11:01 AM.
Smalls89 is offline  
    Quick reply to this message
Old 03-04-2019, 08:45 PM  
Focus Enthusiast
 
Join Date: Feb 2018
Fan#: 387673
Location: El Cajon, CA
What I Drive: 2014 Focus Titanium-Soon To Be 2015

Posts: 100
Points 952, Level 16
Points: 952, Level: 16 Points: 952, Level: 16 Points: 952, Level: 16
Level Up 52% Completed
Level up: 52% Level up: 52% Level up: 52%
Forum Activity 5%
Activity: 5% Activity: 5% Activity: 5%
FF Reputation: 3 14 Titanium Good Standing Member
Buy-Sell-Trade Rating: (0)
I have a trunk harness in great condition with no cut or broken wires or plugs if you want it. $25.00 shipped. :-D
14 Titanium is offline  
    Quick reply to this message
Old 03-05-2019, 02:52 PM  
Focus Enthusiast
 
Join Date: Feb 2015
Fan#: 222474
Location: Fairfield, CT
What I Drive: 2012 Red Ford Focus SE

Posts: 301
Points 2,840, Level 32
Points: 2,840, Level: 32 Points: 2,840, Level: 32 Points: 2,840, Level: 32
Level Up 60% Completed
Level up: 60% Level up: 60% Level up: 60%
Forum Activity 43%
Activity: 43% Activity: 43% Activity: 43%
FF Reputation: 1 acsmith1972 Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by Smalls89 View Post
A step in the right direction? Replacements are cheap(ish)

the wiring harnesses
sedan:
~$20 base #14405 -> Link: 14405



hatch
~$20 base #14404 -> Link: 14405
~$30 base #14A069 -> Link: 14A069

Thanks. Good to know where all that connects and how much it is. I found the spot where the wires are broken. THREE wires are broken, black and white, black, and another black. Why Ford did it that way is beyond me. I reconnected the black and white wire with the crimping tool I have and hopefully it's connected right, but the two solid black ones, I have no idea which is which. It's like 20 degrees outside so I could only stay out long enough to do one. If I had more room and knew which was which I'd just solder them together.

Have you by any change changed these harnesses? I'm wondering how hard it is to do. I know it's not technically difficult, but I mean the routing and all.
acsmith1972 is offline  
    Quick reply to this message
Old 03-06-2019, 06:29 AM  
Focus Enthusiast
 
Join Date: Feb 2019
Fan#: 409817
What I Drive: 2012 Focus SEL Hatch

Posts: 172
Points 156, Level 3
Points: 156, Level: 3 Points: 156, Level: 3 Points: 156, Level: 3
Level Up 12% Completed
Level up: 12% Level up: 12% Level up: 12%
Forum Activity 15%
Activity: 15% Activity: 15% Activity: 15%
FF Reputation: 1 Smalls89 Good Standing Member
Buy-Sell-Trade Rating: (0)
From what I know of the hatch, the trim is the hardest part. 2 screws and it all snaps off, but it snaps easier if you do them at the same time. All three pieces (3 on the left, 3 on the right) overlap in a continuous ring. As far as the sedan? I would think it would be the same except I piece trim on either side inside the trunk if that.

Once the trim is out the liner can be man handled to wherever you need it

The wires themselves are held in place by the snap in zip tie things iirc
Smalls89 is offline  
    Quick reply to this message
Old 03-06-2019, 06:32 AM  
Focus Enthusiast
 
Join Date: Feb 2019
Fan#: 409817
What I Drive: 2012 Focus SEL Hatch

Posts: 172
Points 156, Level 3
Points: 156, Level: 3 Points: 156, Level: 3 Points: 156, Level: 3
Level Up 12% Completed
Level up: 12% Level up: 12% Level up: 12%
Forum Activity 15%
Activity: 15% Activity: 15% Activity: 15%
FF Reputation: 1 Smalls89 Good Standing Member
Buy-Sell-Trade Rating: (0)
After you start you should just have to follow it to a connector I believe
Smalls89 is offline  
    Quick reply to this message
 

Bookmarks & Social Networks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
What I Drive
Year, color, and model of your car. Example: 2003 Focus Centennial Edition Sedan
Name
Your real name.
City
State
Country
Insurance
Please select your insurance company (Optional)

Log-in

Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
2001 ZX3 wiring diagram JYL007 General Technical Chat 7 08-26-2014 09:14 PM
Where to find wiring diagram Phestezio General Technical Chat 5 06-20-2014 09:25 PM
I need help with wiring autodim mirror. Wiring diagram needed myfocusrocks General Technical Chat 0 03-05-2014 12:54 PM
For Sale: Workshop Manual, Diagnosis Manual, Wiring Diagram Mr_Ruxbin BST Archive 27 01-10-2013 12:49 PM
Neon wiring in the trunk? MIKESSVT MK1 Interior Mods & Upgrades 4 05-18-2005 12:56 PM


All times are GMT -5. The time now is 02:10 AM.


Copyright 2002-2015 FocusFanatics.com. All Rights Reserved : : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Mazda CX-3, Audi S3, Mazda MX-5 Miata and Acura TLX. You can find all Ford Focus, Focus ST and Focus RS related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area. If you own other makes have a look at Challenger Hellcat Forum, Charger Hellcat Forum, Cadillac ATS-V Forum, Cadillac CTS-V Forum, Lexus RC-F Forum, Lexus GS-F Forum, Mercedes GLA Forum, Mercedes GLE Forum and Volvo XC90 Forum.




 

Search Engine Optimization by vBSEO 3.6.1