Need Stop/Tail and Signal Light Wiring Color Codes for Towing Harness - Ford F150 Forum - Community of Ford Truck Fans

1987 - 1996 F150 Still running strong! Talk about your 8th and 9th generation Ford F150 trucks.

Need Stop/Tail and Signal Light Wiring Color Codes for Towing Harness

Thread Tools Search this Thread
Old 01-10-2011, 12:42 PM   #1
Junior Member
Thread Starter
Join Date: Dec 2010
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Default Need Stop/Tail and Signal Light Wiring Color Codes for Towing Harness


Lost my LH Left side trailer Lights signals/running/brake (driver's side) and seems the 7 Point Connector at the Truck theres no connection proved by an LED adapter. But the RH side works fine!

The wiring harness is albeit a few inches of room (there is very little room between the tire hitch and bumper) and found my test lamp disfunctional which I'll replace this morning but maybe inbetween someone can help me with some answers or other solutions while I find my auto wire and get another test lamp.

I removed both tailllights to expose the wiring... on the left side there is

Grn w/Brown Stripe

Solid Brown/

Solid Black

CAN ANYONE IDENTIFY THESE WIRES? of couse there are wires for the reverse lights but im only looking for the stop/tail and signal lights

since there is no room and I beleive there may be a short somehere under the truck I did find that some of these wires are "tapped" and there is a little block attached to sheet metal of the light housing. If I can get the other connector off I'll check continuity but when I took one side of there are two pigtails, a its difficult and b I ended up snapping a tab.

Im thinking these tapped yelow wires are somehow for "an Aftermarket alarm system now defunct... and running up to my tuck shell , maybe one was for a brake light on the truck /camper shell the following is what I found.

To cut to the chase my Goal: Get LH trailer lights working as simple as possible and to go through the wires at Lamp and splice them back into the Truck/RV harness after the harness plug connectors.

Since these wires are tapped into, my thoughts are that if these are for the alarm systems/or camper shell , etc. That I can actually go off thse wires if I knew which one opeated what singnals/ stop and to go get some wire to test and to make the permenant connections.

Here's what was done.

Grn w/Brown Stripe /tapped with yellow wire

Solid Brown/

Solid Black/ tapped with yellow wire


As I mentioned all these yellow wires go to a little inch block with its own pigtail. Any help wiold be appreciated .

Im thinking the grn.brwn is the turn signal and the black is the stop/taillight. Thanks. Dam I wish this was wireless and had a laser sensor conversion for 40 bucks!
FordBourne is offline   Reply With Quote
Old 01-10-2011, 02:01 PM   #2
Senior Member
Join Date: Aug 2010
Location: Belmont, Ms
Posts: 957
Thanked 28 Times in 27 Posts

Sent you a PM let me know if it came through okay
Nitehawkjr is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
2015 F150 Rust Issues Ottawavalleylad 2015 - Present Ford F150 55 08-22-2017 01:33 PM
Incredibly bright Led Mirror Puddle Lights Burke484 Lighting 20 08-19-2017 12:51 AM
ABS light, Brake light, Check Brake System and anti skid indicators on analog readout jgriffinemt 2009 - 2014 Ford F150 17 05-06-2017 01:41 PM
South Central: FS: 2013 & 2014 FX4 Harley Black Tail Lights *Brand New* (2 sets) Hammer Down 2009 - 2014 Part Sales 17 04-15-2016 03:33 PM
Canada: 30" HanningLED Combo Light Bar with Custom Mounts SteveEH 2009 - 2014 Part Sales 9 11-23-2015 09:21 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are Off

All times are GMT -4. The time now is 01:43 PM.

Copyright 2006 - 2017 We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: