Fog Light Wiring questions - MustangForums.com


V6 S197 General Discussion This section is for technical discussions pertaining specifically to the V6 variation of the 2005 and newer Ford Mustang.
Sponsored by:
Sponsored by:

Reply
 
 
 
Thread Tools Search this Thread
Old 04-24-2018, 02:12 PM   #1  
afbryant
Thread Starter
 
Join Date: Mar 2007
Posts: 9
Default Fog Light Wiring questions

Hi everyone. I bought a set of fog lights with included harness for my 2005 V6. Everything worked well after wiring it up with the included switch. I just got a GT style switch and need some help wiring it in. The harness in the cabin that controls the generic switch has 3 wires
(black, red and white).
I know I need to tap into pin 3(violet/orange) and pin 6(orange/green). I don't know which of the wires go where and if the black wire is even used for the OEM switch. Thanks in advance if you can help
afbryant is online now   Reply With Quote
Old 04-24-2018, 02:42 PM   #2  
08'MustangDude
3rd Gear Member
 
Join Date: Jan 2018
Location: Pennsylvania
Posts: 633
Default

You can keep the harness powered as it it is, you only need the coil trigger run inside
to the switch. On my kit, the WHITE wire is the trigger for relay.



You would run the white or coil trigger wire to pin 3.

Pin 6 tells the SJB the fogs are on, if supported, to turn on the dash light
indicating the fogs are on. DO NOT bother with Pin6.

There is no FOG relay in the engine fuse/relay center, you are using your own
relay.

Mine is wired like this:

RED is the power wire.
WHITE is the relay trigger to my harness, on the hi-beam relay. I am using 75watt HIDs in mine.
My grounds are with the other factory grounds up front on the upper rad support.

IF I decide to add the ford switch that has the FOG function, I will remove the white wire
from where it is, and run it inside to pin 3 of the switch.

Last edited by 08'MustangDude; 04-24-2018 at 02:57 PM.
08'MustangDude is online now   Reply With Quote
Old 04-25-2018, 04:14 PM   #3  
afbryant
Thread Starter
 
Join Date: Mar 2007
Posts: 9
Default

thanks Dude, I will try it later today
afbryant is online now   Reply With Quote
Old 04-25-2018, 07:38 PM   #4  
afbryant
Thread Starter
 
Join Date: Mar 2007
Posts: 9
Default

Didn't work. Gotta check my wiring again.Well.. It works perfect as is with the rocker switch. Dude, I do have both my red power wires going to the fuse box. I am wondering if I need to re-wire it a different way to use the GT switch
afbryant is online now   Reply With Quote
Old 04-26-2018, 06:00 PM   #5  
08'MustangDude
3rd Gear Member
 
Join Date: Jan 2018
Location: Pennsylvania
Posts: 633
Default

An installation video says it's a ground.

Sorry, a saw a video, it says it's the Grey harness, wire that has Orange and green stripe,
so my guess is PIN6 is the one to use. Cut the wire 2" before the plug, and connect
the coil ground to there:


This board here won't allow to use the time index for the video, it always starts
from the beginning. I have the link copied to go in at 4:30, but this system won't
allow that. So go right to 4m30s of the video.

Last edited by 08'MustangDude; 04-26-2018 at 06:03 PM.
08'MustangDude is online now   Reply With Quote
Old 05-03-2018, 05:58 PM   #6  
afbryant
Thread Starter
 
Join Date: Mar 2007
Posts: 9
Default

thanks for the info dude , I will get on it this weekend, been working double shifts lately
afbryant is online now   Reply With Quote
Old 05-03-2018, 06:07 PM   #7  
08'MustangDude
3rd Gear Member
 
Join Date: Jan 2018
Location: Pennsylvania
Posts: 633
Default

Will be keeping my eye open for a factory switch with fog position. I am not going to
pay $75.00 for one though. I'll drill a hole in mine and wire up a push button
before I do that.

Gonna put in a trunk release button in the console too, just keep forgetting to
get a momentary push button...
08'MustangDude is online now   Reply With Quote
Old 05-09-2018, 04:47 PM   #8  
afbryant
Thread Starter
 
Join Date: Mar 2007
Posts: 9
Default

Got a chance to look at it today. I think I need to add a relay in the # 30 slot in the under hood fuse box. I am trying to wire this using an oem switch, seems like I would need this relay to make it work. Just wandering??????????
afbryant is online now   Reply With Quote
Old 05-09-2018, 05:08 PM   #9  
08'MustangDude
3rd Gear Member
 
Join Date: Jan 2018
Location: Pennsylvania
Posts: 633
Default

My kit came with a relay harness...

If you look at the FOG relay position in the fuse center, there are no
female connectors in it, it's blank, so adding a factory relay won't
do anything.

If you got just fog lamps, and a grille, then you need a regular 12V relay.

Pin 30 to Battery or Ignition power
Pin 87 to the Fog Lamps Power Lead
Ground fog the Lamps
Pin 85 (coil) to Battery or Ignition power
Pin 86 (coil) to the ground, wire as shown in the video (negative trigger).


The RED wire you see in this picture is power, to pin 30 of my relay harness.
There are plenty of these male spade connectors in the fuse/relay center.

The white wire is a positive trigger for the relay. Pin 85 and 86 are reversible,
if one is power, the other is ground, there is no polarity for the coil.

Positive trigger:
Pin 86 Grounded
Pin 85 Power from switched source to trigger relay.

Negative Trigger:
Pin 86 to Battery Source.
Pin 85 to a switched ground to trigger relay.

The video would seem to indicate a negative trigger from the factory switch.
08'MustangDude is online now   Reply With Quote
Old 05-09-2018, 05:21 PM   #10  
08'MustangDude
3rd Gear Member
 
Join Date: Jan 2018
Location: Pennsylvania
Posts: 633
Default

This is how they're wired FACTORY, as they cut out with the hi-beams on:


You see, PIN6 is grounded at the headlight switch when active. So, this is where the negative side of the
coil will go for your fogs.
08'MustangDude is online now   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Center console wiring/fog light wiring help! Witzy 5.0L (1979-1995) Mustang 2 07-27-2009 04:53 PM
3d center fog light grill or street scene mesh center fog grill? peter north 2005-2014 Mustangs 11 11-24-2008 03:03 AM
headlight, fog light, side light and tail light black out? TEXASGT/CS 2005-2009 S197 Appearance Section 9 10-19-2008 04:34 PM
FS: 99-04 GT fog lights and fog light switch tjames Parts For Sale 7 12-31-2007 02:28 AM
Fog light wiring, but no fog lights ?????...... Ninety5five0 5.0L (1979-1995) Mustang 7 11-02-2006 12:09 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

Forum Jump

Advertising
Featured Sponsors
Vendor Directory

All times are GMT -5. The time now is 06:36 PM.


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 Amazon.com and affiliated sites.