ABS / ASC warnings...Any thoughts? - K-Bikes.com - Excellence in Motion
 
LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old May 4th, 2008, 6:51 pm Thread Starter
 
Join Date: Mar 2007
Posts: 90
ABS / ASC warnings...Any thoughts?

Just a few days ago, I started getting "Brake Failure" and ASC warnings on my display panel. Not to be confused with the erroneous brake pad wear indicator warning which has already been on for several thousand miles.

My brake pads have plenty of meat left on them and my fluid resiviors are within correct range.

It just started out of nowhere. The initial symptom that I noticed along with the ABS / ASC warnings was when I got on the throttle pretty hard in first, and then cracked the throttle really hard in second, the front end started to lift. Just as it began lifting, the engine cut the power dropping the front end back to the ground very hard and abruptly. I have been able to replicate this 3 or 4 times now.

I have never ridden the bike with the ASC turned off, and this is the first time I have ever been able to lift the front wheel.

Additionally, after inital start up, sometimes the "brake failure" message goes away after riding the bike a few feet like it normally should, other times, it doesn't turn off.

Sometimes they will come on during riding, stay on, and cutting the engine stopped in traffic will reset them. Other times it will not.

Anyone have similar experiences? I have a 2007 GT, with a Feb 2007 build date. Appx. 5500 miles on the clock.
PUREBRAD is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old May 4th, 2008, 7:57 pm
Member
 
Join Date: Mar 2008
Location: Livermore, CA, USA
Posts: 110
Sounds right to me. My understanding of how ASC works is that it is comparing front to back wheel speed and if the back suddenly increases, it assumes loss of traction. Lifting the front would logically trigger this. Never read this anywhere but it seems to make sense to me.

For the other "brake failure" symptoms, it sounds like a sensor issue on one of the wheels?
cbdane is offline  
post #3 of 4 (permalink) Old May 5th, 2008, 12:08 am
Addict
 
Doru-in-Romania's Avatar
 
Join Date: May 2006
Location: Bucharest, , Romania
Posts: 434
had exactly same issue with a gs1200 and was caused by rain. sold the bike never knew real cause. i think is a sensor or something.


2010 R1200RT
2009 X6
2010 X1
former and future k owner
Doru-in-Romania is offline  
Sponsored Links
Advertisement
 
post #4 of 4 (permalink) Old May 5th, 2008, 4:22 pm
Enthusiast
 
Join Date: Apr 2007
Location: Arnold, CA, USA
Posts: 353
Quote:
Originally Posted by PUREBRAD
Additionally, after inital start up, sometimes the "brake failure" message goes away after riding the bike a few feet like it normally should, other times, it doesn't turn off.
I would check the wheel speed sensors for gap. I would also buy a GS-911 and read the ABS controller for faults, and go from there.

Guy Howard
K12LT 05 (sold)
K12GT 07 - build 12/06 BMSK-P ECU (ASC retrofit), V.3 airbox, new o2 sensor @18k, PowerFrk module @25k
howfly is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the K-Bikes.com - Excellence in Motion 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










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
ABS Woes Re5guy K1200RS/GT (Classic) 7 Aug 3rd, 2011 5:00 am
Infuence of ABS on rear-brake pedal usage kurtk12gt K12/1300GT (Next Gen) 13 Apr 20th, 2007 4:21 pm
ABS II Troubleshooting Request PSB K1200RS/GT (Classic) 12 Oct 18th, 2006 10:58 am
New ABS System and Advanced Stability Control Details eljeffe Bike Talk 0 Jul 16th, 2006 5:43 pm
Integral ABS and ASC - New Riding Dynamic Control Systems for BMW Motorcycles SilverRT K12/1300GT (Next Gen) 1 Jul 14th, 2006 4:09 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