electrical gremlins ate my lunch - BMW Luxury Touring Community
 
LinkBack Thread Tools Display Modes
post #1 of 9 Old Apr 18th, 2014, 12:01 am Thread Starter
Senior Member
 
Join Date: Feb 2014
Posts: 113
electrical gremlins ate my lunch

Well if it wasn,t for bad luck, you know this song . Got the LT rewired with a used wiring harness and a used reverser module. my choices are somewhat slim here in Mexico but i believe the parts were ok.
However, turn the key on, dashboard lights come on, including ABS warning lights, and starter button does not function, turn key off and in fact pull key out of ignition , lights stay on.
From what I read it should be one of the relays and in fact only way to kill lights is to pull the ground from the battery.
We were looking at the wiring again and my friend hit the front brake which made the windshield raise up. If I was not crying it would have been funny. In fact mechanic called BMW in Cancun, told him about it and he did laugh.
So I imagine that my only recourse is to turn it over to BMW and see if the computer will find the faults and be able to fix it right. that will work will it not.
mexicoboy is offline  
Sponsored Links
Advertisement
 
post #2 of 9 Old Apr 18th, 2014, 12:19 am
Lifetime Supporter
 
deanwoolsey's Avatar
 
Join Date: Aug 2008
Location: Topeka, KS, USA
Posts: 3,105
Re: electrical gremlins ate my lunch

Highly unlikely in my opinion that a BMW shop will be able to fix your bike for an acceptable price. I believe you'll be way ahead to part it out and start over with another machine.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
deanwoolsey is offline  
post #3 of 9 Old Apr 18th, 2014, 1:33 am
Senior Member
 
fpmlt's Avatar
 
Join Date: Jan 2008
Posts: 2,175
Re: electrical gremlins ate my lunch

Curious, after you put a new wiring harness in, what changed, and what remained the same?
fpmlt is offline  
 
post #4 of 9 Old Apr 18th, 2014, 9:49 am
Wrencher Extraordinaire
 
jzeiler's Avatar
 
Join Date: May 2004
Location: Hazel Green, AL, USA
Posts: 13,273
Re: electrical gremlins ate my lunch

Changing out a partial harness is tough. I had an MGB that suffered a fire and it melted every thing under the hood. I spliced in a year later harness but I spent two days before hand and after verifying every wire went to the correct item. It was a pain but every thing worked the first time. Sounds like that is what you need to do since a brake switch operated the windshield. Either that or just find a complete harness from your model year and install that. Other wise you spend 50-100 hours trying to track down the faults. Sorry man.

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
jzeiler is offline  
post #5 of 9 Old Apr 18th, 2014, 11:33 am Thread Starter
Senior Member
 
Join Date: Feb 2014
Posts: 113
Re: electrical gremlins ate my lunch

Jzeiler, first off thanks for your patience and help. Mechanic ran complete harness up to the point where it goes forward of the electrical box and thru the frame by the radiator. Here he cut and spliced the forward wires. Noticed today that that does not include ignition switch wires.
most important change is that it does not burn up wiring again LOL. Seriously the difference is the windshield raising up, new helper guy said something was seeking a ground, dunno.
I believe you were correct when you told me starter had hung up , kept running and caused original short, starter will turn over if crossing the starter relay.
My next step as the original mechanic checked all wires for short,s will be to trace the ignition switch wiring and the right multifunction switch.
Where is the main ground for this bile located, other than where the reverser hooks to both ground spots.
Appearance is of a frozen relay and I read one of your earlier posts about how to check them and they seem to be working.
To anybody else, I cannot part bike out, my wife has said no more on another motorcycle purchase. She did not say I could not ship it to the boys in Illinois however LOL.
mexicoboy is offline  
post #6 of 9 Old Apr 18th, 2014, 10:09 pm
Wrencher Extraordinaire
 
jzeiler's Avatar
 
Join Date: May 2004
Location: Hazel Green, AL, USA
Posts: 13,273
Re: electrical gremlins ate my lunch

The LT uses wire only for the ground not the frame, so yes a bad ground connection can cause a lot of trouble.

On the windshield all the relays are up on the frame by the motor for the windshield. The inputs from the handle bar are as follows:

1. From the handle bar control; Green wire is power, Blue is lower, Gray is lift.

2. A connector up under the dash or in the relay box; wire colors change to Green/Black, Blue/Yellow, and Gray/Yellow. Same functions.

Don't see how this could ever be related to a brake switch even if a ground was missing. I suspect a cross wiring was done in the junction box where one of the handle bar multi-function switches ties in and the brake light relay as they are side by side. This may help you sort it out. This is where the colors change on the windshield control lines.
Attached Thumbnails
Click image for larger version

Name:	Relay ID.JPG
Views:	49
Size:	99.3 KB
ID:	53809  

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
jzeiler is offline  
post #7 of 9 Old Apr 19th, 2014, 12:14 am Thread Starter
Senior Member
 
Join Date: Feb 2014
Posts: 113
Re: electrical gremlins ate my lunch

Will check wiring and see how it is, could not get it to work again today but am making progress as now, horn, turn signals, flashers,neutral light. cruise control light,tail lights and brake light are all back.
I may have had a short or burned out wire to the Hall effect sensor which may be causing me some problems. The Clymer manuel is helping as are members of the forum.
Ignition lights and all work fine and when I pull out the relief relay they will go out. That is the only way they will go out however unless I disconnect the ground. As mentioned progress is slow but I am retired so lots of time and I am stubborn so will keep on posting till I ride again.
O bye the way do you want an all expense paid trip to Cozumel Mexico Mr.Jzeiler.LOL joke of course
mexicoboy is offline  
post #8 of 9 Old Apr 19th, 2014, 1:18 am
Senior Member
 
mycamel's Avatar
 
Join Date: Jun 2012
Location: roswell , ga, usa
Posts: 512
Re: electrical gremlins ate my lunch

he'll be of no help to you there. i suspect he is more in the prone position than erect at this point. maybe if you put him on a flat board and send him down by train or bus. he'll be of no help since he'll drink his way down. and besides----if he likes it he'll stay and i won't be able to ride over from Atlanta and have him fix my issues (with the bike that is). and you're going to have a large terremoto so he'll have to wait that out! and it's too cold down there!

Mike Hammel (My Camel) [WB9GMO/4]
2002 K1200LT-E
1998 ACE Burgundy (now 'retired')
1998 ACE Yellow/Black Tourer (now 'retired')
19?? Suzuki 500 (now 'retired')
1962 modifed 49cc>~55cc Sears MoPed (LONG 'retired')

US Army Security Agency 0582L68 ('64-68)
moderator and owner:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Retired from the business world (finally--sigh --poor and proud)
Georgia Patriot Guard Riders
Roswell, GA
mycamel is offline  
post #9 of 9 Old Apr 19th, 2014, 8:46 am
Lifetime Supporter
 
Voyager's Avatar
 
Join Date: Jun 2007
Location: Lawrenceville, PA, USA
Posts: 7,150
Re: electrical gremlins ate my lunch

Quote:
Originally Posted by mexicoboy View Post
Will check wiring and see how it is, could not get it to work again today but am making progress as now, horn, turn signals, flashers,neutral light. cruise control light,tail lights and brake light are all back.
I may have had a short or burned out wire to the Hall effect sensor which may be causing me some problems. The Clymer manuel is helping as are members of the forum.
Ignition lights and all work fine and when I pull out the relief relay they will go out. That is the only way they will go out however unless I disconnect the ground. As mentioned progress is slow but I am retired so lots of time and I am stubborn so will keep on posting till I ride again.
O bye the way do you want an all expense paid trip to Cozumel Mexico Mr.Jzeiler.LOL joke of course
With issues like this, patience and persistence are 90% of the solution. It sounds like you are well equipped. Just confirm each circuit in turn, both supply and return and you will eventually remove all of the gremlins.

2017 KLR650 "Mule"
2007 K1200LT "Starship Enterprise", VOICE II, Navigator V, Motorrad Communicator
1987 Kawasaki Voyager XII
1976 Kawasaki KH400
1973 Kawasaki 100 G5
1970 Rockford Chibi (the orange one)

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Voyager 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
2002 K1200LT Electrical Gremlins and Other Adventures bmwollman K1200LT 15 Dec 29th, 2013 11:16 pm
electrical gremlins oldtimer54 K1200LT 7 May 29th, 2012 12:51 am
Missing bits... cfell BMWLT Site Support Forum 3 Oct 9th, 2007 10:51 pm
Lunch for Five RMoore007 Northern California 8 Dec 31st, 2005 12:27 am
The Sillycon Valley Lunch Bunch Eats Again! DavidTaylor Northern California 0 Dec 13th, 2005 10:43 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