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    1. Member
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      11-22-2011 12:02 AM #1
      My brother just purchased a 2012 Tiguan and I've noticed that it already has the rear fogs and bulbs in. I tried changing his switch with my euro switch but they still wouldn't go on. Would the wiring be the same as for the mkv's with the trigger wire? I did this mod on my mkv jetta, anyone do it yet?

    2. Member instigator31's Avatar
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      11-22-2011 03:35 PM #2
      Quote Originally Posted by ceznyc2 View Post
      My brother just purchased a 2012 Tiguan and I've noticed that it already has the rear fogs and bulbs in. I tried changing his switch with my euro switch but they still wouldn't go on. Would the wiring be the same as for the mkv's with the trigger wire? I did this mod on my mkv jetta, anyone do it yet?
      I think we are all having issues with our 2012's...no one has figured this out yet...or at least I am fairly sure.
      MODS: APR Stage 1 Flash | APR Carbonio Stage 1 CAI | 35% Tint All Around | EuroSwitch | 4,550K Hi/Lo Beams | Nokya Hyper Yellow Fog Bulbs | Blacked Out Front Turns | H&K 24MM RSB | BFI Torque Arm Insert Stage 1
      FUTURE MODS: Rear Fog | Lots of Vag-Com Work (DRL, FOB Windows, Auto Rain Up) | Forge Short Shift Kit | Coil Overs | Stage III or K04

    3. Member
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      11-23-2011 04:08 AM #3
      I figured same TSI engine so logically speaking it should be the same??? Anyone else know anything?

    4. Member
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      11-26-2011 11:43 PM #4

    5. Member
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      12-07-2011 11:16 PM #5
      Ran the trigger wire based on the mkvi procedure, must work but I was wrong about the bulbs being already inside. The taillights are actually missing the bulbs as the fog dash light illuminates and the bulb out warning appeared. Took the bulb holder out, and the h21w bulb is missing on both sides. Ordered the bulbs online as no part store had them around the neighborhood. Hope this works... They are on the way, I will update the post once everything works.

    6. Forum Sponsor Dana @ Ross-Tech's Avatar
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      12-08-2011 10:59 PM #6
      Please update us, I am not aware of a successful retrofit yet either.
      Dana Marie

      P.S. No Scan = No Soup

    7. Member
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      12-11-2011 11:08 PM #7
      Seemed to me like everything would be in working order. The trigger wire was ran based on the mkvi diy and then the bulb out indicator was on the dashboard which I took as a positive note that everything should be ok. Received the bulbs Saturday, i put them in and the light disappeared. I pulled the euro switch twice the rear fog indicator is on but the bulbs still don't light up. Not sure whats going on or what to do now. Tiguan has both rear lights in the bumper so the rest of the install didn't apply from the mkvi and swapping the reverse lights. Anyone have an idea?

    8. Semi-n00b
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      12-12-2011 04:16 PM #8
      According to the schematic the cable between light switch and central electronic (J519) is equipped according to equipment.
      The cable for rear fog light goes from switch pin 7 (gray/white) to pin 17 on the 52 pin connector on J519.
      (Same for the front fog light: From switch pin 5 (white/blue) to pin 21 on the same connector on J519.)

      Have a look for them at the light switch end.

    9. Member
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      12-12-2011 06:35 PM #9
      Is it a coding issue to enable? I know on my A3 you have to modify the coding to make the rear fogs work.

    10. Member
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      12-12-2011 10:43 PM #10
      Coding and trigger wire is ran just like mentioned above. That's why the rear fog dash light is illuminated. But for some reason the bulbs are not lighting up...

    11. Forum Sponsor Dana @ Ross-Tech's Avatar
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      12-15-2011 10:43 PM #11
      Post the before and after scans and try Output tests to see if anything lights up when the rear fog is activated by the module.
      Dana Marie

      P.S. No Scan = No Soup

    12. Member
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      12-28-2011 08:44 PM #12
      Ran the output tests and all lights worked one by one except for rear fogs. Also found measuring blocks where I did get this:

      Wednesday,28,December,2011,20:21:03:48545
      VCDS Version: Release 11.11.0
      Data version: 20111111



      --------------------------------------------------------------------------------
      --------------------------------------------------------------------------------


      Address 09: Cent. Elect. (5K0 937 086 L)

      20:20:29 Group 050: Light Switch Status II
      ON Front Fog Light
      ON Rear Fog Light
      OFF Brake Light Sw. (Hardware)
      No Commun. Brake Light Sw. (CAN)


      Wednesday,28,December,2011,20:22:23:48545
      VCDS Version: Release 11.11.0
      Data version: 20111111


      Address 09: Cent. Elect. (5K0 937 086 L)

      20:21:33 Group 047: Rear Fog Light and Cornering Light
      87.7 % Left Rear Fog Light
      0.0 % Right Rear Fog Light
      0.0 % Left Cornering Light
      0.0 % Right Cornering Light

      --------------------------------------------------------------------------------
      --------------------------------------------------------------------------------

      This just proves that the switch is sending power over and, but for some reason only the left rear fog light is getting power but still no output. Unlike the MKVI GTI which is switching over one reverse for the second fog, the Tiguan has both reverses in the bumper so not sure how to get power to the second one. Stuck for now please help.

    13. 01-15-2012 08:10 PM #13
      Here's a thought...my 2002 Audi A4 only supported the left rear fog lamp (enabled at the factory). That is not uncommon. Could be the same with the Tiguan. The one NA Tiguan I seen with a rear fog mod was also the same.

    14. Member
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      01-15-2012 11:31 PM #14
      If that would be the case then it shouldn't one of them go on at least? With everything done they still won't go on. ???

    15. 01-17-2012 09:19 AM #15
      And based on your VCDS, that is the case. Power to the left side only. Why would the NA 12 Tiguan come with a light assembly that fully supports a rear fog lamp when the 09-11s did not. You had to buy a separate left rear light assembly to get it to work. I suspect it has a socket but it doesn't, work. Its easy to check with a meter.

    16. Member
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      01-18-2012 11:12 PM #16
      I can do that. I completely agree with your theory of the previous Tiguans and replacing the light. I bought two bulbs and threw them in, thinking everything would be ready to go. Will check with a meter and update here.

    17. 01-28-2012 07:08 PM #17
      The OP did not post back their results so for future reference, the N.A. 2012 Tiguan requires a different rear lighting housing to enable the rear fog lamp. Just putting in a bulb, switch, and coding will not work.

    18. Member
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      01-29-2012 02:00 PM #18
      Not sure why it would require a new housing, as there is room in the OEM housing as well as room on the socket for h21w bulb which i already put in, and everything fits. What would a housing itself do?

    19. 01-29-2012 03:51 PM #19
      If the actual wiring/busbar isn't there, the socket is pretty much useless. You can press on your current path or order part no. 5N5945094. Don't ask me why VW does what it does but that's the part no. contains the rear fog lamp. It is a Euro left rear (inner) light assembly that supports the fog lamp.

    20. Member
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      01-30-2012 11:31 PM #20
      Actually ran into some trouble not sure if my wiring caused this, but the outer tail brake lights aren't working at all. Checked out at vw, and had to order a module which is on back order nationwide.

    21. n00b
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      2012 VW CC
      02-12-2012 03:33 AM #21
      I have a 2012 VW CC (US), a Ross-Tec HEX – USB+CAN (Dual-K & CAN, HC433866 Rev. B) VCDS 11.11.2
      I'd like to activate the rear fog lights.

      In VCDS I can go to 09 - Cent. Elect but I don't find anything close to what's described in http://forums.vwvortex.com/showthrea...Rear-Fog-light
      No hint for rear fog lights bytes/bits, also not in any other sites.

      Seems like for the 2012 CC some of the descriptions of the Bytes/Bits are missing
      I'd also like to get even radio frequencies (e.g. 88.8)

      Anybody knows how to do this?

    22. 02-12-2012 03:33 PM #22
      Quote Originally Posted by juli_hum View Post
      I have a 2012 VW CC (US), a Ross-Tec HEX – USB+CAN (Dual-K & CAN, HC433866 Rev. B) VCDS 11.11.2
      I'd like to activate the rear fog lights.

      In VCDS I can go to 09 - Cent. Elect but I don't find anything close to what's described in http://forums.vwvortex.com/showthrea...Rear-Fog-light
      No hint for rear fog lights bytes/bits, also not in any other sites.

      Seems like for the 2012 CC some of the descriptions of the Bytes/Bits are missing
      I'd also like to get even radio frequencies (e.g. 88.8)

      Anybody knows how to do this?
      I'd suggest that you start a new thread. Someone who may have done it may not necessarly be scoping out a thread with Tiguan in the subject. In that new thread, I would post the results of a autoscan per the rules of this particular forum so those who know something can read what modules you have to provide a more intelligent answer.

    23. Member vw siej's Avatar
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      07-29-2012 10:45 PM #23
      Quote Originally Posted by ceznyc2 View Post
      Actually ran into some trouble not sure if my wiring caused this, but the outer tail brake lights aren't working at all. Checked out at vw, and had to order a module which is on back order nationwide.
      Did you recode it? I tried blindly recoding it to Tiguan RoW and the outer brake lights became the turnsignals only. The inner brake lights (on the liftgate) started acting as the brake lights. Got error messages for Rear L/R brake lights and front L/R side lights. I had to take it to a dealer to recode.

    24. Member AMD IS THE BEST's Avatar
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      07-09-2014 02:02 PM #24
      Sorry to bump an old thread. Any more info on this? A friend just picked up a '14 R line and would love this.
      2013 Golf R
      1991 200 20v
      1991 200 20v Avant
      YouTube
      Golf R Facebook Group

    25. 07-10-2014 06:10 PM #25
      No bumps with No auto-scan

    26. Member AMD IS THE BEST's Avatar
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      07-15-2014 10:42 AM #26
      Quote Originally Posted by Jack@European Parts View Post
      No bumps with No auto-scan
      So you're saying that I can't ask if someone successfully implemented rear fog light/s on a US Tiguan without posting an Autoscan?

      Seems legit..
      2013 Golf R
      1991 200 20v
      1991 200 20v Avant
      YouTube
      Golf R Facebook Group

    27. 07-15-2014 11:48 AM #27
      That is correct because neither the thread or you are in compliance of the rules.............

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