GOLFMK8
GOLFMK7
GOLFMK6
GOLFMKV
VW GTI MKVI Forum / VW Golf R Forum / VW Golf MKVI Forum / VW GTI Forum - Golfmk6.com



Go Back   VW GTI MKVI Forum / VW Golf R Forum / VW Golf MKVI Forum / VW GTI Forum - Golfmk6.com > Technical Topics > Tracking / Autocrossing / Driving Techniques


Reply
 
Thread Tools Search this Thread Display Modes
Old 12-16-2016, 12:36 PM   #393
mikejsmith1985
Formula 5000 Driver
 
Drives: 2012 Candy White GTI Autobahn
Join Date: Mar 2014
Location: Bethel, Ohio
Posts: 1,330
So looking at the brake light switch stuff a bit this morning. I have 1 pin with 12v and 3 pins with ~.009v while the car is powered on. Depressing the brake makes no change to voltage so that proves there is only one switch in play here.

With the harness unplugged the lights stay on all the time. I need to get voltage readings from the other 3 pins while the car is running both with the pedal engaged and disengaged to determine exactly what I need to mimic. The location of the pins is going to be difficult to see and access but fortunately I do know a guy with a stock MK6 So I should be able to get it figured out.


Sent from my iPhone using Tapatalk
__________________
Quote:
Originally Posted by *****2.0t View Post
Keep trying until it starts shooting flames.
Need a custom vinyl decal or 3D printed item for your GTI? Send me a PM!
Need help with Eurodyne Tuning:
www.tunemaestro.com
mikejsmith1985 is offline   Reply With Quote
Old 12-16-2016, 02:04 PM   #394
mikejsmith1985
Formula 5000 Driver
 
Drives: 2012 Candy White GTI Autobahn
Join Date: Mar 2014
Location: Bethel, Ohio
Posts: 1,330
Found some wiring diagrams hopefully this will save me from having to disassemble my friends car in the 20* weather this afternoon.


Sent from my iPhone using Tapatalk
__________________
Quote:
Originally Posted by *****2.0t View Post
Keep trying until it starts shooting flames.
Need a custom vinyl decal or 3D printed item for your GTI? Send me a PM!
Need help with Eurodyne Tuning:
www.tunemaestro.com
mikejsmith1985 is offline   Reply With Quote
Old 12-16-2016, 08:55 PM   #395
mikejsmith1985
Formula 5000 Driver
 
Drives: 2012 Candy White GTI Autobahn
Join Date: Mar 2014
Location: Bethel, Ohio
Posts: 1,330




Sent from my iPhone using Tapatalk
__________________
Quote:
Originally Posted by *****2.0t View Post
Keep trying until it starts shooting flames.
Need a custom vinyl decal or 3D printed item for your GTI? Send me a PM!
Need help with Eurodyne Tuning:
www.tunemaestro.com
mikejsmith1985 is offline   Reply With Quote
Old 12-17-2016, 02:20 PM   #396
Chris659
Touring Car Champion
 
Drives: 12 Beetle Turbo
Join Date: Jan 2015
Location: Fl
Posts: 256
Quote:
Originally Posted by mikejsmith1985 View Post




Sent from my iPhone using Tapatalk
Damn! The battery terminal ends connected make the battery look even smaller!
Chris659 is offline   Reply With Quote
Old 12-18-2016, 09:20 AM   #397
mikejsmith1985
Formula 5000 Driver
 
Drives: 2012 Candy White GTI Autobahn
Join Date: Mar 2014
Location: Bethel, Ohio
Posts: 1,330
Quote:
Originally Posted by Chris659 View Post
Damn! The battery terminal ends connected make the battery look even smaller!


It's a tiny battery!

So I had to work all day yesterday. I'm going to play with the wiring today and see if I can get a functional brake light switch.

Friday night I got a 2nd person to help with the VCDS bleeding and I couldn't do it because without the brake light switch it can't detect pedal position and won't move beyond the first step...

I did use a magnet and bench test the GTI sensor to confirm what I need to replicate.

Pin 4 is constant 12v
Pin 2 is ground
Pin 3 receives power from pin4 when pedal is not engaged and lights are off.
Pin 1 receives power from pin4 when pedal is engaged and lights are on.

Next steps?

The brake pressure sensor is the same 4 pin connector but actually only uses 3 pins. So I need to determine which pin gets constant power and which pin gets activated when the pedal is engaged. Ground pin may not be used or I may have to ground it to the MC.

Next option is to also test the 6 pin connector which only uses 5 pins on the Touareg brake switch and I may need to de pin the factor connector and switch to the Touareg connector.


Sent from my iPhone using Tapatalk
__________________
Quote:
Originally Posted by *****2.0t View Post
Keep trying until it starts shooting flames.
Need a custom vinyl decal or 3D printed item for your GTI? Send me a PM!
Need help with Eurodyne Tuning:
www.tunemaestro.com
mikejsmith1985 is offline   Reply With Quote
Old 12-18-2016, 12:53 PM   #398
LAGP
Autocross Champion
 
Drives: Audi A3
Join Date: Feb 2016
Location: Tabasco Mexico
Posts: 111
Quote:
Originally Posted by mikejsmith1985 View Post
It's a tiny battery!

So I had to work all day yesterday. I'm going to play with the wiring today and see if I can get a functional brake light switch.

Friday night I got a 2nd person to help with the VCDS bleeding and I couldn't do it because without the brake light switch it can't detect pedal position and won't move beyond the first step...

I did use a magnet and bench test the GTI sensor to confirm what I need to replicate.

Pin 4 is constant 12v
Pin 2 is ground
Pin 3 receives power from pin4 when pedal is not engaged and lights are off.
Pin 1 receives power from pin4 when pedal is engaged and lights are on.

Next steps?

The brake pressure sensor is the same 4 pin connector but actually only uses 3 pins. So I need to determine which pin gets constant power and which pin gets activated when the pedal is engaged. Ground pin may not be used or I may have to ground it to the MC.

Next option is to also test the 6 pin connector which only uses 5 pins on the Touareg brake switch and I may need to de pin the factor connector and switch to the Touareg connector.


Sent from my iPhone using Tapatalk
You could try the switch from the previous generation, extend the cables into the cabin. 9C0945511A
LAGP is offline   Reply With Quote
Old 12-18-2016, 01:27 PM   #399
mikejsmith1985
Formula 5000 Driver
 
Drives: 2012 Candy White GTI Autobahn
Join Date: Mar 2014
Location: Bethel, Ohio
Posts: 1,330
TT-RS/Golf R master cylinder

Quote:
Originally Posted by LAGP View Post
You could try the switch from the previous generation, extend the cables into the cabin. 9C0945511A


Well I had a friend come over and he talked me into removing the switch from the servo to get a part # so we could find a schematic for it as our voltage tests weren't really telling us anything we expected to find. And it doesn't really come out and now I can't get the damn locking but on and I've boogered up the sensor housing around the locking mechanism if I can manage to get it back on it'll be functional but I'm a bit outdone with myself. I told him it was a terrible idea to try and remove it lol. And it has to be in there to seal the booster so no vacuum leaks.





After a short brake I got the sensor back in

Sent from my iPhone using Tapatalk
__________________
Quote:
Originally Posted by *****2.0t View Post
Keep trying until it starts shooting flames.
Need a custom vinyl decal or 3D printed item for your GTI? Send me a PM!
Need help with Eurodyne Tuning:
www.tunemaestro.com

Last edited by mikejsmith1985; 12-18-2016 at 01:53 PM.
mikejsmith1985 is offline   Reply With Quote
Old 12-18-2016, 03:01 PM   #400
LAGP
Autocross Champion
 
Drives: Audi A3
Join Date: Feb 2016
Location: Tabasco Mexico
Posts: 111
Quote:
Originally Posted by mikejsmith1985 View Post
Well I had a friend come over and he talked me into removing the switch from the servo to get a part # so we could find a schematic for it as our voltage tests weren't really telling us anything we expected to find. And it doesn't really come out and now I can't get the damn locking but on and I've boogered up the sensor housing around the locking mechanism if I can manage to get it back on it'll be functional but I'm a bit outdone with myself. I told him it was a terrible idea to try and remove it lol. And it has to be in there to seal the booster so no vacuum leaks.





After a short brake I got the sensor back in

Sent from my iPhone using Tapatalk
What does the sensor look like from the inside, is it a push rod?
LAGP is offline   Reply With Quote
Old 12-18-2016, 03:53 PM   #401
mikejsmith1985
Formula 5000 Driver
 
Drives: 2012 Candy White GTI Autobahn
Join Date: Mar 2014
Location: Bethel, Ohio
Posts: 1,330
Quote:
Originally Posted by LAGP View Post
What does the sensor look like from the inside, is it a push rod?


I couldn't get the damn thing out to tell... I think it's this switch though.




Sent from my iPhone using Tapatalk
__________________
Quote:
Originally Posted by *****2.0t View Post
Keep trying until it starts shooting flames.
Need a custom vinyl decal or 3D printed item for your GTI? Send me a PM!
Need help with Eurodyne Tuning:
www.tunemaestro.com
mikejsmith1985 is offline   Reply With Quote
Old 12-18-2016, 06:58 PM   #402
mikejsmith1985
Formula 5000 Driver
 
Drives: 2012 Candy White GTI Autobahn
Join Date: Mar 2014
Location: Bethel, Ohio
Posts: 1,330
TT-RS/Golf R master cylinder



I interpret this to mean:
Pin 3 = constant 12
Pin 2 = switched power
Pin 4 = switched power
Pin 1 or 6 = can be my ground
Pin 5 = no wire present

If this logic is right this picture shows how I need to re pin the GTI harness.



The tool I used to de pin my coil pack terminal when I mucked it up has a pair of prongs that fit in these connectors but they don't seem to be disengaging the pins I can of course splice these but I'd prefer not to cut my harness if possible.

Prongs that fit are in 12o clock position.

**EDIT** I forgot about the secondary lock typically a purple clip inside the connector. I will revisit this tonight I hope!




Sent from my iPhone using Tapatalk
__________________
Quote:
Originally Posted by *****2.0t View Post
Keep trying until it starts shooting flames.
Need a custom vinyl decal or 3D printed item for your GTI? Send me a PM!
Need help with Eurodyne Tuning:
www.tunemaestro.com

Last edited by mikejsmith1985; 12-18-2016 at 07:08 PM.
mikejsmith1985 is offline   Reply With Quote
Old 12-18-2016, 09:50 PM   #403
mikejsmith1985
Formula 5000 Driver
 
Drives: 2012 Candy White GTI Autobahn
Join Date: Mar 2014
Location: Bethel, Ohio
Posts: 1,330
I now have a functional brake light switch pinned exactly as my previous post suggests. I used pin one as ground in my install.

I also responded the reservoir cap so I could use the Touareg cap.

Now that I'm not using the brake pressure sensor I wish I had removed and capped it. Perhaps I'll do it next time I flush the fluid. The whole system is in and "functional" although I do need to get the air out of the system still. I REALLY can't wait to get this back on the road.




Sent from my iPhone using Tapatalk
__________________
Quote:
Originally Posted by *****2.0t View Post
Keep trying until it starts shooting flames.
Need a custom vinyl decal or 3D printed item for your GTI? Send me a PM!
Need help with Eurodyne Tuning:
www.tunemaestro.com
mikejsmith1985 is offline   Reply With Quote
Old 12-18-2016, 10:13 PM   #404
flakomk6
Rally Car Newbie
 
flakomk6's Avatar
 
Drives: 2013 mk6
Join Date: Oct 2016
Location: South beach
Posts: 317
Woohooo!!! You did it lol


Sent from my iPhone using Tapatalk
flakomk6 is offline   Reply With Quote
Old 12-18-2016, 11:15 PM   #405
mikejsmith1985
Formula 5000 Driver
 
Drives: 2012 Candy White GTI Autobahn
Join Date: Mar 2014
Location: Bethel, Ohio
Posts: 1,330
Quote:
Originally Posted by flakomk6 View Post
Woohooo!!! You did it lol


Sent from my iPhone using Tapatalk


Ha ha! It's taken far too long!!! I'll be working up a "cliffs notes" type of DIY post for this. I don't want to be the guy to say "if you want to do it figure it out" but I will say that if your considering doing this and you need an explicit step by step to feel comfortable with it then just do the TTRS MC swap. I obviously don't know how I'm going to like the finished product but it's going to have to be pretty disappointing for me to go back at this point. But it wasn't a budget friendly mod by the time you take into account my $250 battery, $80 for the booster and MC, $120 for my portable jump pack in case my battery turns out not to work as well as I hope, and all the nickel and dime stuff to get the right components for the brake lines, the tools to re-pin the connectors if you don't already have it etc. Not going with a lithium battery can save just under $300, plus you don't have to go crazy with the mounting solution like I did... but I feel like I finally have a reason to pop my hood at a car show lol


Sent from my iPhone using Tapatalk
__________________
Quote:
Originally Posted by *****2.0t View Post
Keep trying until it starts shooting flames.
Need a custom vinyl decal or 3D printed item for your GTI? Send me a PM!
Need help with Eurodyne Tuning:
www.tunemaestro.com
mikejsmith1985 is offline   Reply With Quote
Old 12-18-2016, 11:20 PM   #406
carsfeverguy
FIA GT Champion
 
Drives: 2010 Gti
Join Date: Oct 2010
Location: Toronto
Posts: 1,240
I hope all your hard work pays off in satisfaction and enjoyment.
carsfeverguy is offline   Reply With Quote
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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
Forum Jump


All times are GMT -4. The time now is 01:19 AM.


Powered by vBulletin® Version 3.7.2
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.