Euro Rear Fog Light Installation - Page 3
Close
Login to Your Account
Ford Focus RS Forum

Euro Rear Fog Light Installation

This is a discussion on Euro Rear Fog Light Installation within the Focus RS Lighting forums, part of the Focus RS Garage category; My RS does have C431 on it, but only 2 wires, for the Intelligent Access antenna at the back of the car. Tag on the ...

Page 3 of 10 FirstFirst 1 2 3 4 5 ... LastLast
Results 21 to 30 of 92
Like Tree35Likes

Thread: Euro Rear Fog Light Installation

  1. #21
    Supporting Member ControlNode's Avatar
    Supporting Member

    Join Date
    Mar 2015
    Location
    Eastern NC, USA
    Posts
    3,203
    Member #
    795
    Liked
    1147 times
    Mentioned
    94 Post(s)
    My RS does have C431 on it, but only 2 wires, for the Intelligent Access antenna at the back of the car. Tag on the harness that goes onto the bumper is G1ET-15K868. But to get a really OE look you could by the pins and right gauge/color wires and run them though C431.

    Or, maybe buy the Euro rear bumper harness and just remove the parts for the parking sensors, that would give you the plug for the rear fog too. Then you just need to go from BCM to C431 and C431 to ground.
    Name:  IMG_20190222_165649 - Copy.jpg
Views: 259
Size:  3.41 MB
    Last edited by ControlNode; 02-22-2019 at 03:17 PM.
    2016 NB RS1 Forged w/ Cup 2s and Winter W&T Package

  2. #22
    Supporting Member Barroux's Avatar
    Supporting Member

    Join Date
    Feb 2018
    Location
    Montréal North Shore
    Posts
    367
    Member #
    47514
    Liked
    155 times
    Mentioned
    12 Post(s)
    @ControlNode thanks for another great bit of info!

    Since I didnt buy the OE rear fog I’ll have to wire a connector anyways at the rear fog so I wont bother replacing the bumper harness but I’ll sure make my harness as stock looking as I can! Didnt really expect the wires to make it all the way to the bumper but at least now we know!!

    I’ll try to confirm if there is an actuak wire in the harness connecting at the BCM over the week-end, and then figure out where it ends if it’s actually there!

    Thanks again!

  3. #23
    Supporting Member ControlNode's Avatar
    Supporting Member

    Join Date
    Mar 2015
    Location
    Eastern NC, USA
    Posts
    3,203
    Member #
    795
    Liked
    1147 times
    Mentioned
    94 Post(s)
    At this point I doubt you'll find a wire in pin 10 of C2280B, the wiring diagram show that as a direct connection to pin 9 of C431 and only pins 11 and 12 of C431 have a wire to them from the chassis side of the harness. My guess without looking at that BCM plug is that you'll likely be pulling the right interior apart if plan to route it with the chassis harness as it would go. I'm not sure the part numbers for the pins, but I can say the book shows 20 gauge wire. But if you get the right pins (1 for C2280 and 2 pairs of male/female for C431) to insert into the plugs it should not be hard: One power wire from BCM to LED through C431 and a ground wire from LED to ground point (looks to be near right tail light) again through C431.

    But, if there happens to be a wire from pin 10 of C2280B, look around near the rear junction box for a 2 pin plug not connected to anything (C436), that may be there to support a left taillight fog light and is from the same pin on the BCM. If that exist may just need to run a wire from C436-p2 in the left rear area of the car to C431-p9 on the right rear area of the car.
    Last edited by ControlNode; 02-23-2019 at 06:42 AM.
    2016 NB RS1 Forged w/ Cup 2s and Winter W&T Package

  4. Remove Advertisements
    FocusRS.org
    Advertisements
     

  5. #24
    Supporting Member Barroux's Avatar
    Supporting Member

    Join Date
    Feb 2018
    Location
    Montréal North Shore
    Posts
    367
    Member #
    47514
    Liked
    155 times
    Mentioned
    12 Post(s)
    Quote Originally Posted by ControlNode View Post
    At this point I doubt you'll find a wire in pin 10 of C2280B, the wiring diagram show that as a direct connection to pin 9 of C431 and only pins 11 and 12 of C431 have a wire to them from the chassis side of the harness. My guess without looking at that BCM plug is that you'll likely be pulling the right interior apart if plan to route it with the chassis harness as it would go. I'm not sure the part numbers for the pins, but I can say the book shows 20 gauge wire. But if you get the right pins (1 for C2280 and 2 pairs of male/female for C431) to insert into the plugs it should not be hard: One power wire from BCM to LED through C431 and a ground wire from LED to ground point (looks to be near right tail light) again through C431.

    But, if there happens to be a wire from pin 10 of C2280B, look around near the rear junction box for a 2 pin plug not connected to anything (C436), that may be there to support a left taillight fog light and is from the same pin on the BCM. If that exist may just need to run a wire from C436-p2 in the left rear area of the car to C431-p9 on the right rear area of the car.
    Yup no wire at pin 10 (see attached picture with red retainer taken off to look at the pins). 1 is at the top right!

    Luckily I went to my local scrapyard this morning and pulled a spare connector of a 2013 focus.

    I pulled it apart and now have 27 wire pulled out of it with the pins! Plus now I know how to proceed with adding a pin without breaking anything on my car! Will choose one of the bigger gauge wires and insert at pin 10 see if I can get a signal for the rear fog! Might need to pull the glovebox out cause there is little to no slack on that top connector (also practiced that on the scrapped car)!!

    Will post details on how to pull connector apart and add pin when I am on my computer. It’s pretty easy actually!

    If it works I’ll also have lots of spares wires with pins I can give away for free!
    Attached Images Attached Images      
    Last edited by Barroux; 02-24-2019 at 01:48 PM.
    mikesk and XRJoe like this.

  6. #25
    Supporting Member Barroux's Avatar
    Supporting Member

    Join Date
    Feb 2018
    Location
    Montréal North Shore
    Posts
    367
    Member #
    47514
    Liked
    155 times
    Mentioned
    12 Post(s)
    Added a wire at pin 10. Thought it worked for a second BUT that’s just because I first tested it with the fog turned on..was excited to see the voltage show on my multimeter until I turned it off and still had voltage.

    So it’s putting out 10.XX volts all the time no matter what I switch On/Off.

    Could there be some Forscan programming required, like the Fusion/Mondeo guys did?

    I guess next thing is retrieving the asbuilt data from a euro RS and comparing with mine, starting with comparing the lines found on other platforms!

    Unless more wiring or wiring to a different pin is required on our NA RS. @ControlNode if your wiring manual is showing those wires could it be applicable to the Euro RS only and ours would be different in some ways like the rear fog output from the BCM? I’m done for today but will look further into it later this week. Thanks again for your help identifying the fog wires!
    Attached Images Attached Images        

  7. #26
    Supporting Member ControlNode's Avatar
    Supporting Member

    Join Date
    Mar 2015
    Location
    Eastern NC, USA
    Posts
    3,203
    Member #
    795
    Liked
    1147 times
    Mentioned
    94 Post(s)
    The book appears to have multiple markets info in it, I know it is for my car though as it has Sync3 info, NA was only market with that in 2016. But in the same logic it list non-Sync3 info, and we know all of NA RS came with Sync3 only.

    This info is more of test at owe risk: The wiring for the rear fog does not show these pins as related, but looking at the C2280B connector view there are several pins in addition to 10(RD-BK) that show that same Circuit ID (CLS45) and list (FOG LIGHT REAR +) as the function. Pins 9(WH-GN), 12(VT-GN) and 13(VT-GN).
    2016 NB RS1 Forged w/ Cup 2s and Winter W&T Package

  8. #27
    Supporting Member Barroux's Avatar
    Supporting Member

    Join Date
    Feb 2018
    Location
    Montréal North Shore
    Posts
    367
    Member #
    47514
    Liked
    155 times
    Mentioned
    12 Post(s)
    I’ll check pins 9, 12 and 13 next time I feel like bending under the dash panel! Thanks again for the wiring tips!

    Probably wont be this week as I’m going ice racing on friday so I need to prepare for that! Last chance for making it work without looking into Forscan I guess.

    I feel I’ll be sore tomorrow from all the contorsion!

    Edit: the colors of the wires at pins 9, 12 & 13 on the car’s connector match the wiring manual colors, that’s good to know too!
    Last edited by Barroux; 02-24-2019 at 06:23 PM.

  9. #28
    RS Specialist phillofoc's Avatar
    Join Date
    Mar 2018
    Posts
    853
    Member #
    48721
    Liked
    263 times
    Mentioned
    13 Post(s)
    I'm curious if the rear fog + line is always hot, and the rear fog - line goes to ground when the button is pressed.
    If you buy one, drive it hard. Because thrills like these don’t happen often.

  10. #29
    Supporting Member Barroux's Avatar
    Supporting Member

    Join Date
    Feb 2018
    Location
    Montréal North Shore
    Posts
    367
    Member #
    47514
    Liked
    155 times
    Mentioned
    12 Post(s)
    Quote Originally Posted by phillofoc View Post
    I'm curious if the rear fog + line is always hot, and the rear fog - line goes to ground when the button is pressed.
    Interesting!

    If it was the case would that mean the fog light circuit would be “opened” until the line is routed to that switchable ground upon pressing the fog light switch?
    @ControlNode any idea where that G401 ground would be? That is probably something else I can check before I try pins 9, 12 & 13.

  11. #30
    Supporting Member ControlNode's Avatar
    Supporting Member

    Join Date
    Mar 2015
    Location
    Eastern NC, USA
    Posts
    3,203
    Member #
    795
    Liked
    1147 times
    Mentioned
    94 Post(s)
    Quote Originally Posted by phillofoc View Post
    I'm curious if the rear fog + line is always hot, and the rear fog - line goes to ground when the button is pressed.
    Quote Originally Posted by Barroux View Post
    Interesting!

    If it was the case would that mean the fog light circuit would be “opened” until the line is routed to that switchable ground upon pressing the fog light switch?
    @ControlNode any idea where that G401 ground would be? That is probably something else I can check before I try pins 9, 12 & 13.
    No, the ground is not switched on this, G401 should be near the right tail light if I remember right. G401 may be not used without Rear center fog light or Reverse Parking Assist as those are the only things the manual shows using that ground. G405 should be almost next to Where G401 would be.
    2016 NB RS1 Forged w/ Cup 2s and Winter W&T Package

Page 3 of 10 FirstFirst 1 2 3 4 5 ... LastLast

Home | Forum | Active Topics | What's New

Sponsors

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Similar Threads

  1. WTB: Euro rear valance/diffuser and rear fog light
    By Barroux in forum Parts Wanted
    Replies: 12
    Last Post: 03-04-2019, 06:25 PM
  2. WTB EU spec rear diffuser with Fog Light Hole.
    By swagopopotamus in forum Parts Wanted
    Replies: 0
    Last Post: 11-04-2017, 06:28 PM
  3. Rear Fog Light Diameter?
    By swagopopotamus in forum Focus RS Appearance
    Replies: 6
    Last Post: 08-24-2017, 11:25 AM
  4. no rear fog light for US
    By mapco in forum Focus RS Lighting
    Replies: 59
    Last Post: 01-01-2017, 09:40 PM
  5. no rear fog light for US market?
    By mapco in forum Focus RS Lighting
    Replies: 9
    Last Post: 04-27-2016, 08:20 PM