Brake failure light - BMW Luxury Touring Community
 
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post #1 of 12 Old Apr 17th, 2019, 9:01 am Thread Starter
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Brake failure light

I had the slow alternating brake failure light come on a few days ago. It started out slow and then became rapid. I did get the bake fluid and toped off both reservoirs. Now the warning light stays on and the brake failure light is blinking. I did disconnect the battery to see if it would reset things and that did not work. Any suggestions?

G-Glove
2003 Silver LTC

Last edited by gglove; Apr 17th, 2019 at 3:29 pm.
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post #2 of 12 Old Apr 17th, 2019, 4:19 pm
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Re: Brake failure light

I had that happen last year and found that the rear brake reservoir was low. I topped it up and bled the brakes. You may need to bleed the brakes to rectify the problem.
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post #3 of 12 Old Apr 17th, 2019, 5:48 pm
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Re: Brake failure light

gglove, do you hear the abs pump when you pull the hand lever and do you hear the pump when you press the rear brake? Have you checked that all the switches are clicking? See other abs thread for more info...

_____________

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)
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post #4 of 12 Old Apr 17th, 2019, 6:17 pm Thread Starter
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Re: Brake failure light

Quote:
Originally Posted by alabrew View Post
gglove, do you hear the abs pump when you pull the hand lever and do you hear the pump when you press the rear brake? Have you checked that all the switches are clicking? See other abs thread for more info...
Kim I do hear the pump when I pull the hand trigger and rear when the bike is off. When the bike is running the rear I hear the front not sure but don't think so. I hear the front switch and the rear switch.
What other threads are you referring to?

Thanks Patrick

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post #5 of 12 Old Apr 19th, 2019, 1:02 pm
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Re: Brake failure light

Lets start with this chart of what the lights mean, and you can then determine where to start...

https://www.bmwlt.com/forums/attachm...abs-legend.jpg

You don’t mention when the last bleed was done...

_____________

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; Apr 19th, 2019 at 1:12 pm.
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post #6 of 12 Old Apr 19th, 2019, 2:34 pm
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Re: Brake failure light

Also this system is self canceling on faults, in other words once you fix the issue the lights will go away. No reset necessary.

But a steady light on with the other flashing means bad stuff and the only way to tell what it is is the dealers computer or some one with a GS-911 unit to read the fault codes.

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

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post #7 of 12 Old Apr 20th, 2019, 11:39 am Thread Starter
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Re: Brake failure light

Last bleed was 2 years ago
Thanks for the link to the chart
I don't know anyone with the GS-911 tool
Looks like I will be removing Tupperware and my wife will begrudgingly help with the bleeding ;-(

Thanks

G-Glove
2003 Silver LTC
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post #8 of 12 Old Apr 24th, 2019, 7:06 pm Thread Starter
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Re: Brake failure light

Update

I did flush the brake system today and the problem remains. Both the front and rear brake switches seem to be working, I hear the clicks when I squeeze and depress them. The pumps activate when the brake are applied when the bike is not running and the key is turned to the on position. I am not sure if the pumps are activating when the bike is running.

Any other thoughts?
Is there anyone in the Charleston / Mount Pleasant area of South Carolina that has a scan tool that I could check the codes or has knowledge and skill that could help me out?

Thanks

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2003 Silver LTC
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post #9 of 12 Old Apr 25th, 2019, 11:03 am
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Re: Brake failure light

Just to be sure, the lights are flashing as you are riding the bike and the rolling check is completed? They always flash until you start rolling.

The pumps pushed the fluid through both front and rear?

What does the chart tell you is the issue from the flashing pattern?

_____________

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)
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post #10 of 12 Old Apr 25th, 2019, 1:14 pm Thread Starter
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Re: Brake failure light

Quote:
Originally Posted by alabrew View Post
Just to be sure, the lights are flashing as you are riding the bike and the rolling check is completed? They always flash until you start rolling.

The pumps pushed the fluid through both front and rear?

What does the chart tell you is the issue from the flashing pattern?

Yes they are flashing after the rolling check is completed.
Lights
warning light is on
ABS is blinking quickly 4 Hz I assume
at least one brake circuit residual braking function

G-Glove
2003 Silver LTC
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post #11 of 12 Old Apr 25th, 2019, 2:57 pm
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Re: Brake failure light

Were you able to pump fluid from both the front and rear wheel circuits? If so that means your pump motors are OK so the fault may in the pressure sensing circuits. Really need the fault codes to help further.

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

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post #12 of 12 Old Apr 25th, 2019, 6:09 pm Thread Starter
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Re: Brake failure light

Quote:
Originally Posted by jzeiler View Post
Were you able to pump fluid from both the front and rear wheel circuits? If so that means your pump motors are OK so the fault may in the pressure sensing circuits. Really need the fault codes to help further.
John
I was able to pump fluid through both front and rear circuits. I followed the procedure video I found on Illinois BMW Riders site.
I am trying to find a scan tool locally and or will have to find a way to get it to the dealer for a scan, hoping to avoid that

G-Glove
2003 Silver LTC
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