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I am installing a light bar, but can't find the upfitter power wire that correlates to Aux Switch X. I have the bundle of wires that are stubbed under the Passenger side area to right by the door, but none of those match the color coding. I cut one (brown) and checked to see if it has power when I push the start button.... it had a continuous 3.4V and didn't matter what Upfitter switch I hit. What am I missing? There is another set of stubbed end wires, but there are only four and don't come even close to the color scheme. Thanks.
I am installing a light bar, but can't find the upfitter power wire that correlates to Aux Switch X. I have the bundle of wires that are stubbed under the Passenger side area to right by the door, but none of those match the color coding. I cut one (brown) and checked to see if it has power when I push the start button.... it had a continuous 3.4V and didn't matter what Upfitter switch I hit. What am I missing? There is another set of snubbed end wires, but there are only four and don't come even close to the color scheme. Thanks.
The wires are on the driver's side under the hood, near a small fuse/relay box dedicated to the upfitter switches and other upfitter functions.
they are taped to the harness you'll have to cut the tape to get the ends free. The lower rt part of the picture where the wires disappear is the tape.
Adding a couple of pictures-- Where your picture is at, those wires come out of the fuse box for the Upfitter Switches, the manual says those run into the passenger side of the cab. Which, as you and I know may not be the case. Also, those don't appear to stub right there (thought they might and I am going to go look again). archerseven you are helping and I truly appreciate it.
Manual that states they are stubbed here under the passenger side the only stubbed wires I have on that side.
I am installing a light bar, but can't find the upfitter power wire that correlates to Aux Switch X. I have the bundle of wires that are stubbed under the Passenger side area to right by the door, but none of those match the color coding. I cut one (brown) and checked to see if it has power when I push the start button.... it had a continuous 3.4V and didn't matter what Upfitter switch I hit. What am I missing? There is another set of stubbed end wires, but there are only four and don't come even close to the color scheme. Thanks.
Please post a picture of your light bar when it is all done, and as much info on how you wired it in
ill tell you this, didnt seem like a whole lot of free wire when i did my wiring. Even totally cut free i felt nervous about cutting the blunt tip off and stripping.
As I recall, I think there should be 2 sets of stubbed wires inside the cab? It's been a while since I hooked my lights up to my '13. The one you have pictured there goes out through the fire wall, should be a second set that goes to the upfitter switch. I think they do that in case you want to hook things up that are inside the cab as well and not just outside attachments.
As I recall, I think there should be 2 sets of stubbed wires inside the cab? It's been a while since I hooked my lights up to my '13. The one you have pictured there goes out through the fire wall, should be a second set that goes to the upfitter switch. I think they do that in case you want to hook things up that are inside the cab as well and not just outside attachments.
That's correct, from the manual:
"Each switch includes a blunt-cut, sealed wire. The wires are under the instrument panel on the right-hand side of the passenger footwell"
I believe if you sit in passenger seat, reach down, there's a hole in the plastic to the right and you can feel the wire bundle there. I haven't dug in personally to verify that those are what I think they are.
"Each switch includes a blunt-cut, sealed wire. The wires are under the instrument panel on the right-hand side of the passenger footwell"
I believe if you sit in passenger seat, reach down, there's a hole in the plastic to the right and you can feel the wire bundle there. I haven't dug in personally to verify that those are what I think they are.
That seems to be where they used to be, the switches don't end there anymore. The PTO interface wires and a few others for things like SEIC (Stationary Elevated Idle Control) are still down there, as well as a 5 amp hot-in-run-or-start wire. On the truck bbas there was a document that showed the blunt-cuts for the switches being only under the hood, but I didn't find it in my quick search yesterday.
My 6.2 with a single battery has _TONS_ of space to play with by the upfitter relay module, and the wires are short but not bad, the bundle under the passenger seat is shorter and makes me a bit nervous stripping them. So far I'm using 2 switches and the run-hot wire in the passenger kick panel.
12-02-2016, 01:56 PM
