K1200LT and Aluma trailer wiring - BMW Luxury Touring Community
 
LinkBack Thread Tools Display Modes
post #1 of 6 Old Aug 31st, 2011, 4:33 pm Thread Starter
Senior Member
 
Munmi's Avatar
 
Join Date: Jan 2010
Location: Munising, MI, USA
Posts: 671
K1200LT and Aluma trailer wiring

Earlier this summer, I purchased an Aluma trailer model MCT. Nice trailer so far, but very limited in how much we could use it. Shortly after purchase we had an electrical short of some kind a burned up the wiring harness of our 2002 K1200LT. The bike was totalled by the insurance company and we have since purchased another bike. I have spent the last couple of days studying my burned bike, my new bike, online images of wiring and forums. I now hope I have the trailer wiring complete on the bike. It has been very nerve racking dealing with it. Although it has not been determined why the first bike burned out, it is quite unsettling moving along to wire up again as it may have been something in my error or just a goofy coincidence. I just don't know.

Concerning the trailer wiring, I am confused. The trailer's harness is a six wire with the white cut short and not used. If you look at this...
http://www.alumaklm.com/images/stori...mctharness.pdf
you can see the cause for confusion. Notice the color lineup...red, green, yellow, brown, white....and then the plug diagram on the left shows black as ground. The schematic shows white going to ground on the trailer.
What is right?

Scott and Theresa
Munising, MI
2004 K1200LT Black
2014 Kawasaki KLR650

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.
Munmi is offline  
Sponsored Links
Advertisement
 
post #2 of 6 Old Aug 31st, 2011, 5:43 pm
Senior Member
 
Axle's Avatar
 
Join Date: Oct 2007
Location: portland, victoria, Australia
Posts: 1,475
Garage
Re: K1200LT and Aluma trailer wiring

unless your trailer ground wire is going straight to batt 12V terminal on the bike there is not really any way the trailer could cause a fire, the fuse in the circuit would blow first, just wire the bike up and use a 12v test light to confirm that the plug is correct on the bike before you plug into the trailer
white or black is usually earth dont know why it is showing both, doesnt matter just make sure you confirm your connections and you will be good to go

Regards Linton
From the land of Kangaroo's and Koalas
and no koalas are not Bears



2002 K1200LT
2010 Suzuki GSX 1250FA (the Wifes)
2004 Cub Kamparoo Sprint
My Toys
1976 Datsun 260Z
1989 Nissan 300zx TT
Axle is offline  
post #3 of 6 Old Aug 31st, 2011, 8:33 pm
Senior Member
 
SilverBuffalo's Avatar
 
Join Date: May 2005
Location: St. Petersburg, FL, USA
Posts: 3,208
Re: K1200LT and Aluma trailer wiring

Yeah right, what could possibly go wrong?
oh...wait you already know the answer to that question.

What you need is called an isolator relay set,
it is a set of four relays that you can buy from either Dauntless or Bushtec for around sixty bucks,

It will "isolate" the trailer wiring from the LT wiring (cheap insurance)

Most common trailers use a four wire system,
lights, brake, left, right and of course a ground,
they use the brake light filament for the turn signal.

You cannot do that with the LT, it has a separate brake light circuit (five wires)
what you need is a separate brake light on your trailer.

The cut wire inside your trailer was probably intended to be used for an interior cargo light,
since it is already there you can use it to power the brake lights that you'll need to add to your trailer,

I repeat you cannot wire the brake light into the turn signal filaments,
the 4 into five converters that you buy at Wallmart won't work.
Attached Thumbnails
Click image for larger version

Name:	wiring (Medium).jpg
Views:	1747
Size:	69.0 KB
ID:	32658  


Hans
St. Petersburg FL

2002 K1200LTE
"Silver Buffalo" Totaled 5/06
2005 LT
"Esperanza"
BushtecGenesisTrailer
"Our preferred long distance carrier"




Last edited by SilverBuffalo; Aug 31st, 2011 at 8:39 pm.
SilverBuffalo is offline  
 
post #4 of 6 Old Sep 1st, 2011, 12:47 pm Thread Starter
Senior Member
 
Munmi's Avatar
 
Join Date: Jan 2010
Location: Munising, MI, USA
Posts: 671
Re: K1200LT and Aluma trailer wiring

Quote:
Originally Posted by SilverBuffalo

The cut wire inside your trailer was probably intended to be used for an interior cargo light,
since it is already there you can use it to power the brake lights that you'll need to add to your trailer,
This trailer is using 5 of the 6 wires and has a nice brake light already installed. All LED lights. I have opened the connector on the trailer harness to confirm each wire corresponds with the bike end. When I tested with plugging into the bike, the lights all worked....but they did on the last bike too. Is it possible that the black wire is used as a ground like the LT brown ground works.....linking ground to all components, frame as some vehicles are?

I also contacted DMC (Dauntless) the isolator relay is $100. Cha-Ching!

Scott and Theresa
Munising, MI
2004 K1200LT Black
2014 Kawasaki KLR650

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.
Munmi is offline  
post #5 of 6 Old Sep 1st, 2011, 8:32 pm
Senior Member
 
SilverBuffalo's Avatar
 
Join Date: May 2005
Location: St. Petersburg, FL, USA
Posts: 3,208
Re: K1200LT and Aluma trailer wiring

Quote:
Originally Posted by Munmi
I also contacted DMC (Dauntless) the isolator relay is $100. Cha-Ching!
The BMW wiring harness is over $1500 ChaChingers, installation just a "few" dollars more,
your call.


Hans
St. Petersburg FL

2002 K1200LTE
"Silver Buffalo" Totaled 5/06
2005 LT
"Esperanza"
BushtecGenesisTrailer
"Our preferred long distance carrier"



SilverBuffalo is offline  
post #6 of 6 Old Sep 2nd, 2011, 5:53 am Thread Starter
Senior Member
 
Munmi's Avatar
 
Join Date: Jan 2010
Location: Munising, MI, USA
Posts: 671
Re: K1200LT and Aluma trailer wiring

Quote:
Originally Posted by SilverBuffalo
The BMW wiring harness is over $1500 ChaChingers, installation just a "few" dollars more,
your call.

LOL Yea, the dealer here estimated $4000 to get started fixing the bike....about $2000 each for the harness and labor. Plus whatever else may be damaged....hence the insurance company totaling the bike.

Scott and Theresa
Munising, MI
2004 K1200LT Black
2014 Kawasaki KLR650

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.
Munmi 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
K1200LT & Hannigan SideCar Tourdog Trailers, Sidecars, & Trikes 16 Dec 12th, 2006 7:27 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