BMW R1200GS Brake Failure Warning Light
If you are having trouble with the brake warning light on your BMW R1200GS, if the brake failure light is flashing for approximately 4 times per second and the ABS servos will not start. Try these simple test 1) Switch the bike off, 2) Flick the brake levers several times, 3) Switch the bike on, 4) If servos still do not work, 5)Switch bike off, 6) Whilst pushing front lever out & holding rear lever up, 7) Switch bike on 8) If servos still do not work, 9) Switch bike off, 10) Check the rear brake light switch by the back level 11) ensure there isn’t any grit in it, 12)Switch bike on. If you are still having issues consider downloading the BMW R1200GS repair manual, the manual covers all aspects of repair and will be an asset to any R1200GS owner.
Link : BMW R1200GS Repair Manual