TailGate Wiring Info

80230 Views 80 Replies 30 Participants Last post by tanman430, Nov 1, 2013

Fireguy50

Discussion Starter · Nov 25, 2003

I wrote this page a few weeks ago and recommed doing the upgrade: http://fullsizebronco.com/forum/showthread.php?s=&threadid=7937
But there is no single place for tailgate wiring info on this site yet.

I decided to make my own wiring diagram, be back later

1 - 20 of 81 Posts

Fireguy50

Discussion Starter · #2 · Nov 25, 2003

Tailgate power window motor wiring

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Reactions: 1

Damager

· #3 · Nov 25, 2003

Thanks Ryan :thumbup

Ironclad

· #4 · Nov 25, 2003

Just what the Dr. needed.......

Thanks Ryan!

Fireguy50

Discussion Starter · #5 · Nov 25, 2003

2

78-86 Bronco heated window wiring. (without under hood fuse box)

87-96 Bronco heated window wiring. (with under hood fuse box)

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Fireguy50

Discussion Starter · #6 · Nov 25, 2003

Tailgate harness overview

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Fireguy50

Discussion Starter · #7 · Nov 25, 2003

Tailgate harness detail

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94 XLT BRONCO

· #8 · Nov 25, 2003

Thanks Ryan, this is great info :thumbup I printed it out and stuck in my haynes manual for future reference.

alboy79

· #9 · Nov 25, 2003

what years is that for? or do they all work similar? my rear window on my 79 dont go up, and i dont know a dang thing about the wiring of it all... so this would help.

Fireguy50

Discussion Starter · #10 · Nov 25, 2003

Same from 1980-1996, I can't find any 78-79 diagrams to conferm, but I'm pretty sure they are the same as well.

The defroster changed a little when the underhood fuse box was used in the 90's

Steve83

· #11 · Nov 30, 2003

The change to the circuit actually occurred in '87 when the defrost switch moved from below the dash to within the dash. The early one was a black box with a slide lever, a green indicator, and an electrically separate blue backlight; the '87-91 style was a black rocker with an yellow indicator and a green backlight; the '92-96 switch had a chrome bar button with an orange indicator light and blue backlit letters. But the 2 later styles are electrically interchangeable.

Ryan
Just FYI: I stole your diagrams and added them to this album.

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Fireguy50

Discussion Starter · #12 · Nov 30, 2003

Steve83 said:
Ryan
Just FYI: I stole your diagrams and added them to this album.

You did What?

Just kiding, I've copied lots of the pics off your site too

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JohnDeStef

· #13 · Mar 6, 2006

Fireguy50 said:

Thanks for the great writeup!

I searched for it because I'm trying to locate the defroster connection in my tailgate. I'm rewiring the mess leading to the tailgate, and all I have is 2 cut wires that lead to the defroster connection. They're wrapped in a cloth sleeve. I can't find where they connect to. :banghead

Thanks!

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Steve83

· #14 · Mar 6, 2006

John
Ryan's photo shows an '80-?89 tailgate harness. Yours will have a different connector inside the L frame rail just forward of the rear bumper with the window & defrost wires in 1 connector. Inside the t/g, though, it'll be the same as older harnesses, but his photo doesn't show that end of the harness. It's just 2 flat terminals on a long harness take-out that reaches from one side of the glass to the other. They're the same size & type as the "Tailgate Latch Switch" terminals in his photo, but they're in separate connectors, instead of the double-connector shown for the switch.

JohnDeStef

· #15 · Mar 6, 2006

Steve83 said:
John
Ryan's photo shows an '80-?89 tailgate harness. Yours will have a different connector inside the L frame rail just forward of the rear bumper with the window & defrost wires in 1 connector. Inside the t/g, though, it'll be the same as older harnesses, but his photo doesn't show that end of the harness. It's just 2 flat terminals on a long harness take-out that reaches from one side of the glass to the other. They're the same size & type as the "Tailgate Latch Switch" terminals in his photo, but they're in separate connectors, instead of the double-connector shown for the switch.

I thought you'd be the guy to answer my question, thanks Steve! I do need to read your reply a few times to try and picture what you're describing.

Now that I've wound the window halfway down, I see the tabs for the defrostrer. One's 5 inches from the glass' driver's side, the other's 22 inches. It seems I'm missing a chunk of the wiring harness.

Got a spare you can sell???

Thanks again... back to the tailgate.

Steve83

· #16 · Mar 6, 2006

JohnDeStef said:
Got a spare you can sell???

Nope. I don't think I have any t/g parts left. Maybe the long weatherbelts stashed somewhere, but I haven't run across them in recent memory. Oh, I do have some of the long clips to hold the trim panel on, but I can't think of anything else.

******EDIT*****
I have plenty of t/g parts now.

El Kabong

· #17 · May 2, 2007

Just realized I ought to stop & say thanks. I found this diagram while searching the www for tailgate info, & also found FSB at the same time. Thanks for the info, my window has been happily working ever since :thumbup .

turbobrickman

· #18 · Sep 12, 2007

El Kabong said:
Just realized I ought to stop & say thanks. I found this diagram while searching the www for tailgate info, & also found FSB at the same time. Thanks for the info, my window has been happily working ever since :thumbup .

Ya same here.

alhefner

· #19 · Nov 11, 2008

Thanks for the great tailgate info!

I have been looking at a '90 Bronco Eddie Bauer edition at an auction where I work night security. Got the tailgate glass down then couldn't get it back up after opening and closing the tailgate! :cry

Thought I was doomed until I found this thread. Sure enough, connected motor straight to the battery and got the tailgate glass up!

Think I'll place a bid on that Bronco!

j. r. Nice

· #20 · Nov 11, 2008

I thought this thread needed some tags so it comes up for newbies. Thought of more but it will only let me add 2.

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