07 lt abs light stays on - BMW Luxury Touring Community
 1Likes
  • 1 Post By jzeiler
 
LinkBack Thread Tools Display Modes
post #1 of 13 Old Jul 15th, 2017, 1:13 pm Thread Starter
Senior Member
 
mr1150gs's Avatar
 
Join Date: Feb 2005
Posts: 303
07 lt abs light stays on

Bought this bike with non fuctioning headlight and brake fault warning indicator on. Bike also had aftermarket brake strobe light that was removed. Center rear brake bulb works. Brake fluid was very dark so I bled them and checked all fluid reservoir levels. Headlight was replaced and is functioning. The brake fault fault light is not blinking and does not go off but you can hear the relay working. Brakes are functioning. Battery was previously low but now fully charged.

Is there a reset for the integrated abs system? Not sure what else to look for.

"If at first you don't succeed... well, so much for skydiving."

BMWMOA - #47511
2015 F700GS - For my better half whenever I'm not using it!
2007 K1200LT - Nice now!
2003 R1150GS -Black Beauty (sold)
2006 K1200LT - Blue Baby (sold)
2003 R1150GS - Yellowbird (sold)
1981 R100CS - Sadly gone
1991 K1100RS - Sold and burned
1986 K100RS - In the past

Last edited by mr1150gs; Jul 15th, 2017 at 1:14 pm. Reason: Spelling
mr1150gs is offline  
Sponsored Links
Advertisement
 
post #2 of 13 Old Jul 15th, 2017, 2:51 pm
Lifetime Supporter
 
Join Date: Jul 2002
Location: Pelham, AL, United States
Posts: 530
Re: 07 lt abs light stays on

Look at this chart to diagnose what the lights indicate.

http://www.bmwlt.com/forums/attachme...abs-legend.jpg

There is a drive off rolling test before they go out so just starting it and not moving isn't enough since the wheel sensors have to sense the pickup rings.

Only reset I know of without a computer is disconnecting the battery.

The dealer or a gs911 could read the fault codes to further diagnose the issue.

_____________

Kim Thomson
Motorcycle Cigar Smoker
05 K1200LT - The Golden Rocket Ship
91 K100RS - The White Stallion
85 K100 Standard - Big Red
79 R65 - "The Bee" is a buzzin' again!
06 525i - Premium, Sport, Comfort, Xenons

Gone, but not forgotten...
02 K1200LTC - Big Blue (accident at 40k)
88 K100RT - Chocolate (it was brown, melted - fire)
85 K100RT - (wore out)
82 Yamaha Vision - (electrics)
72 Yamaha R5C 350 - (broke trans)

Last edited by alabrew; Jul 15th, 2017 at 3:11 pm.
alabrew is offline  
post #3 of 13 Old Jul 15th, 2017, 7:12 pm Thread Starter
Senior Member
 
mr1150gs's Avatar
 
Join Date: Feb 2005
Posts: 303
Re: 07 lt abs light stays on

Thanks alabrew. Based on the chart I'm experiencing the first of the faults on the list which is risidual braking only. Rolling test does not eliminate the fault code. I will have to see if anyone has a 911. Also wonde.ring if the relay is stuck but I do hear it ticking. Have disconnected battery but no luck to reset.

I also have a GS with the same abs system so may be worth a try to interchange relays.

"If at first you don't succeed... well, so much for skydiving."

BMWMOA - #47511
2015 F700GS - For my better half whenever I'm not using it!
2007 K1200LT - Nice now!
2003 R1150GS -Black Beauty (sold)
2006 K1200LT - Blue Baby (sold)
2003 R1150GS - Yellowbird (sold)
1981 R100CS - Sadly gone
1991 K1100RS - Sold and burned
1986 K100RS - In the past
mr1150gs is offline  
 
post #4 of 13 Old Jul 16th, 2017, 10:04 pm
Wrencher Extraordinaire
 
jzeiler's Avatar
 
Join Date: May 2004
Location: Hazel Green, AL, USA
Posts: 13,263
Re: 07 lt abs light stays on

There is no "relay" to drive the ABS it is all in the ABS solid state brain. The servos trigger on input pressure and/or application of a brake switch (front or rear). These feed directly into the brain and the brain then sends a signal to the brake light relay to light the lights. This system is self resetting once the fault is eliminated. So if you still see the light the fault is still there. Really need to get a fault code and go from there.

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 13 Old Jul 17th, 2017, 9:27 am
Senior Member
 
Join Date: Mar 2005
Location: Palma de Mallorca
Posts: 1,985
Re: 07 lt abs light stays on

Brake fluid levels ?
simoncharles is offline  
post #6 of 13 Old Jul 17th, 2017, 9:42 am Thread Starter
Senior Member
 
mr1150gs's Avatar
 
Join Date: Feb 2005
Posts: 303
Re: 07 lt abs light stays on

Quote:
Originally Posted by jzeiler View Post
There is no "relay" to drive the ABS it is all in the ABS solid state brain. The servos trigger on input pressure and/or application of a brake switch (front or rear). These feed directly into the brain and the brain then sends a signal to the brake light relay to light the lights. This system is self resetting once the fault is eliminated. So if you still see the light the fault is still there. Really need to get a fault code and go from there.
Thanks John,

Previous owner indicated he had a mechanic read the codes that pointed to the then non-functioning head light. The head light has since been replaced but the brake fault indicator on the dash remains.

The brake fluid was very dark and I believe I may have allowed air in the system but I re-bled the brakes to be sure.

I was hoping to eliminate the blue relay that manages the dash light (understand it does not drive the ABS) being at fault as I would think a faulty ABS pump would not allow the brakes to function as well as they do.

Hopefully someone local will have a 911 as the closest BMW dealer is 2 1/2 hours away.

"If at first you don't succeed... well, so much for skydiving."

BMWMOA - #47511
2015 F700GS - For my better half whenever I'm not using it!
2007 K1200LT - Nice now!
2003 R1150GS -Black Beauty (sold)
2006 K1200LT - Blue Baby (sold)
2003 R1150GS - Yellowbird (sold)
1981 R100CS - Sadly gone
1991 K1100RS - Sold and burned
1986 K100RS - In the past
mr1150gs is offline  
post #7 of 13 Old Jul 17th, 2017, 9:44 am Thread Starter
Senior Member
 
mr1150gs's Avatar
 
Join Date: Feb 2005
Posts: 303
Re: 07 lt abs light stays on

Quote:
Originally Posted by simoncharles View Post
Brake fluid levels ?
Fluid levels are all fine and the battery is now fully charged.

Thanks for replying.

"If at first you don't succeed... well, so much for skydiving."

BMWMOA - #47511
2015 F700GS - For my better half whenever I'm not using it!
2007 K1200LT - Nice now!
2003 R1150GS -Black Beauty (sold)
2006 K1200LT - Blue Baby (sold)
2003 R1150GS - Yellowbird (sold)
1981 R100CS - Sadly gone
1991 K1100RS - Sold and burned
1986 K100RS - In the past
mr1150gs is offline  
post #8 of 13 Old Jul 17th, 2017, 11:15 am
Senior Member
 
Join Date: Mar 2005
Location: Palma de Mallorca
Posts: 1,985
Re: 07 lt abs light stays on

You are more than welcome.

I had more or less the same problem on my 2005, and it wasn´t until I filled the rear brake round container up to MAX that I managed to solve the problem.

Worth a try.
simoncharles is offline  
post #9 of 13 Old Jul 17th, 2017, 11:38 am Thread Starter
Senior Member
 
mr1150gs's Avatar
 
Join Date: Feb 2005
Posts: 303
Re: 07 lt abs light stays on

Quote:
Originally Posted by simoncharles View Post
You are more than welcome.

I had more or less the same problem on my 2005, and it wasn´t until I filled the rear brake round container up to MAX that I managed to solve the problem.

Worth a try.
Thanks for this but have already ensured all levels are up.

"If at first you don't succeed... well, so much for skydiving."

BMWMOA - #47511
2015 F700GS - For my better half whenever I'm not using it!
2007 K1200LT - Nice now!
2003 R1150GS -Black Beauty (sold)
2006 K1200LT - Blue Baby (sold)
2003 R1150GS - Yellowbird (sold)
1981 R100CS - Sadly gone
1991 K1100RS - Sold and burned
1986 K100RS - In the past
mr1150gs is offline  
post #10 of 13 Old Jul 17th, 2017, 2:48 pm
Wrencher Extraordinaire
 
jzeiler's Avatar
 
Join Date: May 2004
Location: Hazel Green, AL, USA
Posts: 13,263
Re: 07 lt abs light stays on

The relay is triggered by a ground signal from pin 10 on the ABS unit. If that relay was stuck all the time the light would never flash even during start up and I believe that is what you said that is never flashes. But you are correct - the trouble shooting chart says only residual is available if the that light is steady on. That would mean very weak braking so there may be another reason for the light if you have decent brakes.

You may not have a fault at all just a stuck relay. #2 in the picture.
Attached Thumbnails
Click image for larger version

Name:	Relay ID 1.JPG
Views:	136
Size:	99.3 KB
ID:	129001  
simoncharles likes this.

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 #11 of 13 Old Jul 17th, 2017, 6:07 pm Thread Starter
Senior Member
 
mr1150gs's Avatar
 
Join Date: Feb 2005
Posts: 303
Re: 07 lt abs light stays on

EURICKAH!!! I found a yellow/brown wire to the #4 terminal on the relay that was not making good connection. When this wire is jiggled, the dash light flashes as required. Thing is, how do I secure this connection inside the plastic cubical that the wire sits in?

"If at first you don't succeed... well, so much for skydiving."

BMWMOA - #47511
2015 F700GS - For my better half whenever I'm not using it!
2007 K1200LT - Nice now!
2003 R1150GS -Black Beauty (sold)
2006 K1200LT - Blue Baby (sold)
2003 R1150GS - Yellowbird (sold)
1981 R100CS - Sadly gone
1991 K1100RS - Sold and burned
1986 K100RS - In the past
mr1150gs is offline  
post #12 of 13 Old Jul 18th, 2017, 5:55 pm
Wrencher Extraordinaire
 
jzeiler's Avatar
 
Join Date: May 2004
Location: Hazel Green, AL, USA
Posts: 13,263
Re: 07 lt abs light stays on

If you mean here the relay plugs in... just a spade connector in there. Should be able to bend it a little with a small screw driver blade to tighten it up.

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 #13 of 13 Old Jul 18th, 2017, 9:10 pm Thread Starter
Senior Member
 
mr1150gs's Avatar
 
Join Date: Feb 2005
Posts: 303
Re: 07 lt abs light stays on

Quote:
Originally Posted by jzeiler View Post
If you mean here the relay plugs in... just a spade connector in there. Should be able to bend it a little with a small screw driver blade to tighten it up.
Thanks John yes the spade connector on the middle pin. It never fails to amaze how such a small issue cause so much angst and bewilderment.

"If at first you don't succeed... well, so much for skydiving."

BMWMOA - #47511
2015 F700GS - For my better half whenever I'm not using it!
2007 K1200LT - Nice now!
2003 R1150GS -Black Beauty (sold)
2006 K1200LT - Blue Baby (sold)
2003 R1150GS - Yellowbird (sold)
1981 R100CS - Sadly gone
1991 K1100RS - Sold and burned
1986 K100RS - In the past
mr1150gs 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
Coming home from work.. ABS light lights up and ABS pump won't turn off Ksnarf K1200LT 19 Mar 1st, 2015 4:42 am
My Father purchased 2002 K1200LT with 7000 miles the abs pump stays on all the time Autodeal1 K1200LT 6 May 2nd, 2012 7:02 am
Turning off the ABS Flashing light tpfeffer RT Series 4 Jul 7th, 2011 12:18 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