ABS light flashing. - BMW Luxury Touring Community
 
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post #1 of 6 Old Jan 11th, 2011, 4:59 am Thread Starter
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ABS light flashing.

I have a 2003 integral brake model.
It is running through the initial self diagnostic ok, but when i pullaway the light still flashes at 1 per second, other light stays out.
It was parked up for a month, & riding has not cleared it, battery approx 1 year old & bike started after a month in freezing temperatures, lights stil flashing after a 70 mile ride, battery seems fully charged.
Brakes are working, but no ABS.
Any ideas, so far have checked the gap at the wheel sensors, thats OK.
It should not be the rear reservoir, this is indicated by the wig wag alternate flashing.
Also does anyone know how to home diagnose on the Integral system??, i found the procedure for the ABS 11.

Many thanks
Stevie
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post #2 of 6 Old Jan 11th, 2011, 9:40 am
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Talking Re: ABS light flashing.

Quote:
Originally Posted by stevie1
I have a 2003 integral brake model.
It is running through the initial self diagnostic ok, but when i pullaway the light still flashes at 1 per second, other light stays out.
It was parked up for a month, & riding has not cleared it, battery approx 1 year old & bike started after a month in freezing temperatures, lights stil flashing after a 70 mile ride, battery seems fully charged.
Brakes are working, but no ABS.
Any ideas, so far have checked the gap at the wheel sensors, thats OK.
It should not be the rear reservoir, this is indicated by the wig wag alternate flashing.
Also does anyone know how to home diagnose on the Integral system??, i found the procedure for the ABS 11.

Many thanks
Stevie

Hi,
Here is what I would do next.

I would disconnect the battery, give it a charge to warm it up and get it excited, reconnect, do the throttle proceedure, start it and ride it so the initial diagnostic is done again. When the light continues to blink at one second , that means the initial diagnostic was NOT performed. When it is performed, then the light stops blinking.

So, if this doesn't fix it, I'd have the dealer have a look.

After having this bike for 4 years now, I've learned to treat it like I woulkd a computer. Sort of like a reboot and sometimes it corrects things. I haven't a clue as to why for it just seems to work sometimes.

Good luck.
Vern


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Bought used K1200LT number 3. This one is green/teal with 31,369(now 7/29/2018 54,143) miles and is an '02. The first 2 bikes made it to near 150,000 miles.
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Due to heart health, the Dr says not to ride under 40 degree air temp. Ugh! Now it is harder to get my 18000 miles a year in just in the summer. Guess that stopped my 20 degree rides now.
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78 years young!
04 Honda Reflex.....Hers (it mostly sits)
Converted HD rider.
Love this LT bike and still waiting for my first speeding ticket. LOL
Vern
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post #3 of 6 Old Jan 11th, 2011, 10:38 am
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Re: ABS light flashing.

Remember not to touch the brakes when the bike is first started and doing its self check, this will affect the ABS. Try charging the battery, with a charger and then try it again. A weak battery will cause the ABS to not initialize. A battery that has sat for a month can loose up to 2% of its charge a day so I have heard. Starting the bike and letting it idle does nothing to charge the battery or help the engine. According to BMW techs, the bike does not really begin to charge the battery effectively until 4K RPM and just starting the bike takes a lot from the battery that won't be replaced unless the bike is actually ridden. I have heard a well charged battery will take about 10-15 minutes run time to recharge from the bike at 4K RPM. Stop and go traffic, heated gear etc all extends this time.


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2005 K1200LT-Ocean Blue
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post #4 of 6 Old Feb 14th, 2014, 8:05 pm
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Re: ABS light flashing.

4000 RPM? Wow, we must not have very good alternators.
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post #5 of 6 Old Feb 14th, 2014, 8:33 pm
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Re: ABS light flashing.

That is a bunch of non-sense about 4,000 rpm needed to charge the battery. Put a volt meter on the battery and start the engine. If it is reading any where above 12.7 volts the battery is charging - period. Now the time to replace the starting current that was consumed will vary over time, but a good 20 minute ride should more than accomplish that.


Now on to the ABS issue. If the general warning light is off and the ABS light is flashing at 1 Hz then the roll away test has not completed. If both lights are flashing at 1 Hz in a wig wag fashion then you are low on fluid. If the general warning light is on and the ABS light is flashing at 1 Hz you have an ABS failure in either the front or the rear circuits.

Since you described the first instance then I suspect one of your wheel sensors are bad and it cannot complete the roll away test. A visit to the dealer or some one with a GS-911 unit can pull the stored code and tell you what is wrong. Other wise track down the connectors for each of the sensors and compare ohm readings with a multimeter to determine which is at fault.

John
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2006 Bushtec Turbo+2 Spell
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Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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post #6 of 6 Old Feb 15th, 2014, 2:24 am
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Re: ABS light flashing.

Quote:
Originally Posted by Sit View Post
.... According to BMW techs, the bike does not really begin to charge the battery effectively until 4K RPM ....
I wouldn't let a tech giving a statement like that anywhere near my bike ever again... Proves his ignorance with that...

Born to be wild so why not

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