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Hi Everyone I am a new member based in Basingstoke, England so I would like to say hello in the first instance.

Secondly, my bike (K1200GT, 2004) has been laid up for a few months and when I took it out again recently it started fine, ran ok but then after a few miles the ABS light started flashing and the General Warning light came on too. The brakes seemed to be operating normally so I continued for a while to see if it would clear but it didn't.

After a bit of on-line research it looked like it might have been the battery failing, (it is about seven years old now) in any case I changed the battery and everything is fine once again and no other problems.

So, I would say if you get such problems, don't go for the expensive 'it must be an ABS/Servo problem straight away, test and if necessary change the battery, it could be as simple as that.
 

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Good advice. The servo brakes on these bikes are hard on batteries, and will throw a false "ABS and General Warning" light when the voltage gets too low. I always keep my bike hooked up to a battery tender when I'm not riding it to do my best to start out with a fully charged battery. Even then, no battery lasts forever. Seven years is very good for an AGM battery.
 

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Also have an 04 K1200GT, and just experienced the exact same issue. Recharged my battery overnight and problem gone.
 

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Er... not always. Sometimes those lights that won't stop flashing mean something really is starting to let go. BTDT on my '03 KRS and a loaner RT. If the problem shows up once and not again, things probably aren't that bad. If it returns. Not so good. At the very least battery charging or holding a charge may be compromised. Or the bake system may want attention. "Can't start" isn't a big deal, "can't stop" is.
 

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According to my dealer there are a number of reasons for this issue. Mine was diagnosed as a failed ABS pump but turned out to be low fluid in the rear reservoir. Look for the simple fixes first as the pump is sometimes more than the bike is worth.
 

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Definitely time for a new battery but don't be surprised if the problem returns and you need an ABS controller. In the states, we have a resource that will rebuild the unit for about $200 USD. Info is in other posts on the subject. Cheers!
 

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According to my dealer there are a number of reasons for this issue. Mine was diagnosed as a failed ABS pump but turned out to be low fluid in the rear reservoir. Look for the simple fixes first as the pump is sometimes more than the bike is worth.
Good advice! Rear reservoir needs to be full, mine did the same thing.
 

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what a great thread. thanks to everyone for their replies. I do all my own wrenching but it's been mostly cars. this info has been really helpful.

looking for a diagnostic tool now. I found gs911usa.com, which looks very promising. looks like some of those tools can't read the ABS unit though.
 
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