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GEN 2 Interior Auxiliary Wiring Harness Location on a 19?

Discussion in 'Ford F-150 Raptor General Discussions [GEN 2]' started by Terry, Feb 15, 2020.

  1. Terry

    Terry Full Access Member

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    I'm looking for the auxiliary wiring harness in the passenger foot well fuse location on a 2019 Raptor. I've googled it and searched the forums but haven't had any luck finding it so far. The wire locations appear to be in different places depending on the model year and possibly changes more often than that. If you have a 19 and have found your harness would you describe where it was found and post a photo if you have one.
     
  2. ShadowRaptor

    ShadowRaptor FRF Supporting Member Supporting Member

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    Are you looking for the “pass-thru” wires for the upfitters?
    I have a 20, and they may differ slightly, but the location area should be the same.

    I would start looking on the left side, by the fuse panel
    underneath the glove box.
    You need a trim pry tool, and carefully pry off
    the plastic moulding by the passenger side to gain better access.

    ***Note: The pass thru wires are not “hot” or powered by upfitter switches by default. It needs to be connected to matching wires under the hood.
    (this differs which side, left or right you might find yours...see pic)

    ***Also, they are kinda hard to spot. They will be looped and tucked
    in, and taped on a side of a wire harness. Start by looking for
    exposed color wires that matches the upfitter colors.
    Gently pull one, til you find the blunt ends.
    Thats how I found mine.



    Remove fuse cover and plastic trim to see better and gain access:

    D6578D49-75BD-4093-B62A-61E2AB526D95.jpeg


    Under Glove box, by passenger foot well:

    7CBC90F2-7C95-4C71-9452-6AD08F89F155.jpeg


    Under the hood, behind battery:

    FA0A0F3D-C87E-4AC9-818D-28CFAA26C140.jpeg
     
    Last edited: Feb 15, 2020
  3. FL4x4

    FL4x4 Member

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    I have a 2019 and it took me 30 minutes to find the pass through wire bundle on the inside of the truck. They're where ShadowRaptor is showing them inside the truck, but you won't find them hanging loose like he has shown in his picture. I'm sure he took the pic after he found them and freed them.

    They're all bundled together and taped to the wire harness above the fuse box as shown in ShadowRaptor's pic.

    Here's a pic where I found mine:

    PassThrough Wires in Cabin.jpg
     
    Last edited: Feb 15, 2020
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  4. Terry

    Terry Full Access Member

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    Thank you gentlemen. The pass-thru wires are what I'm looking for. I will have time tomorrow to look and I'll have a better chance of finding them than before. I've had the trim pieces off twice without any luck but this gives me a better idea where to look. I'll check back once I've found them.
     
  5. realjones88

    realjones88 Full Access Member

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    They are WAY up there above the fuse box, like way higher than you would actually expect them to be. Also as stated taped to another cable. I'll add a picture of how mine were too so you can how ridiculously hard to get to they were. This is on 2018.

    cables.jpg
     
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  6. HAZMAT221

    HAZMAT221 Member

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    Found mine closer to the ford performance panel past the fuses
     
  7. FL4x4

    FL4x4 Member

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    Yep, That's what they look like on a 2019 too, peaking out of the wire harness waiting to be set free! Ford then tucked the ends of the pass-through wires even deeper and taped them to another wire harness.
     
  8. Terry

    Terry Full Access Member

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    Found them right where described! Thanks to all.
     

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