Trailer hitch K1200 GT nextgen. - BMW Luxury Touring Community
 
LinkBack Thread Tools Display Modes
post #1 of 6 Old Feb 24th, 2008, 12:51 pm Thread Starter
 
Join Date: Feb 2008
Posts: 6
Trailer hitch K1200 GT nextgen.

I have a 2007 K1200 GT, and would like to buy a Unigo trailer ( they can make a trailerhitch that fits the bike) but have no solution for the lighting.
My BMW dealer i Norway can not help me either. There has been suggested that I have to use isolation/bypass relays so that the can-bus system is not disrupted. Does anyone have a suggestion how this can be done. My Autocom gets power from the 12 v auxillery output.

Best regards Tor Damsleth
Norway
tordams is offline  
Sponsored Links
Advertisement
 
post #2 of 6 Old Feb 24th, 2008, 1:23 pm
 
Join Date: Feb 2004
Posts: 4,905
Re: Trailer hitch K1200 GT nextgen.

Yes, you should install a relay-controlled fuse-block. Then you will have available circuits for lighting, or what-have-you. Below is my crappy schematic for what I did to power one of my fuse-blocks.



messenger13 is offline  
post #3 of 6 Old Feb 24th, 2008, 2:07 pm
Senior Member
 
RVB1019's Avatar
 
Join Date: Jan 2005
Location: Long Island , NY, USA
Posts: 1,733
Garage
Re: Trailer hitch K1200 GT nextgen.

The blue wire in your diagram would then go to whatever you had to power right?

Then if I wanted to run my Motolights or whatever else, I would then have to run another relay?

Rob V.B.
2015 Triumph Explorer 1200
2007 BMW GT (SOLD)
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

2003 BMW LT (SOLD)
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

2002 BMW R1150 traded for 2002 Yamaha FZ1 traded for a 2003 GSXR 750

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
RVB1019 is offline  
 
post #4 of 6 Old Feb 24th, 2008, 3:31 pm
IBR# 366
 
meese's Avatar
 
Join Date: Apr 2002
Location: West Linn, OR
Posts: 16,424
Garage
Re: Trailer hitch K1200 GT nextgen.

Quote:
Originally Posted by RVB1019
The blue wire in your diagram would then go to whatever you had to power right?
No, the blue wire is the trigger to turn on the main relay (and thus power up the whole fuse block).

Any accessories would be wired to the fuse block using the appropriately sized fuse for the item being powered.

Ken
Pacific NorthWet
'13 Dark Graphite Metallic K16GTLD, 24K miles
'09 Magnesium Beige Metallic K13GT, 63K miles
'03 Anthracite Metallic K12LTC, 66K miles
'02 Mauve Metallic K12LTC, 106K miles and sold
BMWLT#143, IBA# 366, MOA# 111996, SCMA# 24032


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Some people see the gas tank as half empty. Some see it as half full. All I care is that I know where the next tankful is coming from...
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
meese is offline  
post #5 of 6 Old Feb 24th, 2008, 5:30 pm
Senior Member
 
RVB1019's Avatar
 
Join Date: Jan 2005
Location: Long Island , NY, USA
Posts: 1,733
Garage
Re: Trailer hitch K1200 GT nextgen.

So the blue wire would go a switch (autoswitch or other).


Thanks!

Rob V.B.
2015 Triumph Explorer 1200
2007 BMW GT (SOLD)
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

2003 BMW LT (SOLD)
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

2002 BMW R1150 traded for 2002 Yamaha FZ1 traded for a 2003 GSXR 750

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
RVB1019 is offline  
post #6 of 6 Old Feb 24th, 2008, 6:43 pm
IBR# 366
 
meese's Avatar
 
Join Date: Apr 2002
Location: West Linn, OR
Posts: 16,424
Garage
Re: Trailer hitch K1200 GT nextgen.

The blue wire goes to a signal source that is active when the bike is on, and dead when the bike is off. That could be the parking light up front which is on when the key is on, or the low beam feed which only comes on after the engine starts running.

All Joe's diagram does is show the wiring for installing a separate a fuse box that is outside the CanBus system and is powered up automatically. Any accessory lights, radios, intercoms, horns, etc. are wired to the new fuse box, but none of that is shown in the picture above.

However, it doesn't address the original question about trailer lighting. To allow for running (tail) light and brake light connections without upsetting the CanBus, you need a relay isolation package like this one from Bushtec or the one mentioned on the bottom of this page from Dauntless. It will use the existing bike wiring to sense when the tail lights and brake lights are on, but will power the trailer lights directly from the battery.

I also see an isolation relay listed here, but I'm not familiar with that company.

More info can also be found in this thread in the Trailers, Sidecars, & Trikes forum.

Adding a separate fuse block is a good idea, but is a whole different discussion than trailer hookups.

Ken
Pacific NorthWet
'13 Dark Graphite Metallic K16GTLD, 24K miles
'09 Magnesium Beige Metallic K13GT, 63K miles
'03 Anthracite Metallic K12LTC, 66K miles
'02 Mauve Metallic K12LTC, 106K miles and sold
BMWLT#143, IBA# 366, MOA# 111996, SCMA# 24032


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Some people see the gas tank as half empty. Some see it as half full. All I care is that I know where the next tankful is coming from...
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by meese; Feb 24th, 2008 at 7:01 pm.
meese is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the BMW Luxury Touring Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Trailer Hitch Bottoms Out On Dips rovero K1200LT 9 Apr 16th, 2006 4:15 pm

Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome