2012 Upfitter Switches
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2012 Upfitter Switches
Was looking for some guidance on hooking up some lights and stuff to my upfitter switches. I have a 2012 F350 that's about 2 mos old and I'm just getting used to it....my first Ford :-)
I found a few other threads in this forum that talked about the 2010 and 2011 models with wiring diagrams, however, my 2012 doesn't seem to match? I've got a mess of wires under the dash (see pic) but the colors don't match the specs listed for previous years. I'm assuming my upfitter switches and my dummy wires (through the firewall) are in this mess somewhere. Can anyone point me in the right direction? The manual was less than helpful here...
Thanks!
I found a few other threads in this forum that talked about the 2010 and 2011 models with wiring diagrams, however, my 2012 doesn't seem to match? I've got a mess of wires under the dash (see pic) but the colors don't match the specs listed for previous years. I'm assuming my upfitter switches and my dummy wires (through the firewall) are in this mess somewhere. Can anyone point me in the right direction? The manual was less than helpful here...
Thanks!
Hotshot
Joined: Aug 2006
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From: Whittier, CA
Posting Guru
Joined: Dec 2006
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From: NorCal
There should be another harness just above the one in your pic that has the upfitter wires, sometimes they are tucked up in there pretty good!
switch 1 - Yellow
switch 2 - Green w/Brown stripe
switch 3 - Violet w/Green stripe
switch 4 - Brown
Hotshot
Joined: Aug 2006
Posts: 17,398
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From: Whittier, CA
Right. Ignore the bundle of many blunt cut wires. Those are for high idle, battery charge, PTO, and a bunch of other aftermarket accessory stuff.
Find the relay pack, using the photo in that document. The four wires are part of the wire bundle leading from the relay pack.
Find the relay pack, using the photo in that document. The four wires are part of the wire bundle leading from the relay pack.
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Ok, I found 'em...but...
I don't feel so bad now. I got frustrated and took it to the dealer. It took two different technicians 30 minutes to find them and they had to break out the manual to make sure they were supposed to be there! LOL!
Whoever built my truck in Michigan really used the tape and tucked them up high in the dash, but they finally found them and pulled them down for me. Service techs said they had never seen one that hard to find, but good to go now! Thanks to all that replied!
-JOEL
Whoever built my truck in Michigan really used the tape and tucked them up high in the dash, but they finally found them and pulled them down for me. Service techs said they had never seen one that hard to find, but good to go now! Thanks to all that replied!
-JOEL
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New User
Joined: Jul 2012
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Now that is cleared up, where does the ground wire go? Surely we don't just splice both wires to the upfitter wire, do we?
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From: Barrie, Ontario Canada
Nope! Run your ground to bare metal somewhere.
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I'd say it depends on what you are wiring. Obviously the positive (red) goes to the upfitter switch. If you're wiring a light or something the ground (black) can go to any "grounded bare metal". If you're wiring electronics like a radio, GPS system, or something like that, I'd run a lead from the negative terminal of the battery, which is what I did. Just my 2 cents....but bare metal would probably work in either case. I just a have a preference for the battery connection if it's an electronic toy.
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Joined: May 2012
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Can't find the upfitter wires
You wouldn't be able snap a picture of where these are could ya and post. I can not find them on my 2011 F250 Diesel. I did find the harness plug. Also how about the engine side. I can't seem to see anything that looks like the wires might be taped up in them. Getting dark so I'll have another look in daylight. Asked my Ford dealer about installing it, but they had never done it, and they wanted to do it by the hour. I felt I was paying to train someone for the very first time.
5th Wheeling
Joined: Aug 2012
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From: NY
TY Very much
I looked at that mess and saw nothing but a nitemare
been doing auto repair and maintance on my own trucks for years and as a GM (camaro) enthusist that needed a truck to do real Work I went to Ford.
Now I'll need to locate the wires
Hook up the "ground effects"
and enjoy the easy way out!
I looked at that mess and saw nothing but a nitemare
been doing auto repair and maintance on my own trucks for years and as a GM (camaro) enthusist that needed a truck to do real Work I went to Ford.
Now I'll need to locate the wires
Hook up the "ground effects"
and enjoy the easy way out!
5th Wheeling
Joined: Aug 2012
Posts: 38
Likes: 0
From: NY
Ahh Success
I've made my way thru the maze and found ways to distort my hands and found in my 2005 F350 4 wires with orange wirenuts on them.
Notably I removed the fuse panel and was given access to these 4 wires that worked with the uplifter switches and felt that the test light didn't lie...
I'd like to thank you all for steering me in the right direction...
Notably I removed the fuse panel and was given access to these 4 wires that worked with the uplifter switches and felt that the test light didn't lie...
I'd like to thank you all for steering me in the right direction...
New User
Joined: Sep 2012
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Other upfitter access points?
There is a mention in one of the Ford Body Builders bulletins that there are "other upfitter access points". Does anyone know where else on the chassis this might be? Or this only on the Chassis cabs?
(I have a 2012 F-350 and was trying to wire work/reverse lights up on the back. I saw the Ford service notice about not adding current draw to the existing reverse lights, which suggests using the reverse trailer wiring as the source. I found an interesting looking set of six and two wire cables near the hitch, but not part of the trailer wiring and wondered what the wires went to/from.)
I was thinking that I can't be the first to wire up better reverse lighting... :-)
All the best,
UP
(I have a 2012 F-350 and was trying to wire work/reverse lights up on the back. I saw the Ford service notice about not adding current draw to the existing reverse lights, which suggests using the reverse trailer wiring as the source. I found an interesting looking set of six and two wire cables near the hitch, but not part of the trailer wiring and wondered what the wires went to/from.)
I was thinking that I can't be the first to wire up better reverse lighting... :-)
All the best,
UP