Join Date: Apr 2013
Location: Pittsburgh, PA, USA
Confirming ABS Error Codes
After reading every post on this and other BMW sites about ABS issues, I'm pretty sure I know the answer, but I'm just not willing to accept it yet....Poor yourself a drink, this may be lengthy....
The Symptoms: When I bought this '02 LT in March the warning lights blinked alternately and slowly but the power assist brakes worked great. (I thought low reservoir or battery). I took the bike to a dealership for a complete maintenance overhaul including new brake pads and bleeding the system. When I picked up the bike the lights still slow blinked and I was told the battery was the problem. (The battery was new at purchase) So I took the bike home and put the battery on a charger and checked the volts, 12.85v. Lights still blinked slow but brakes were fine. A couple of weeks ago things changed. Blinking went to fast and after 4 or 5 uses of the brakes on a ride, lost power assist and only had residual braking. This pattern continues, Start the bike, fast flashing lights, 4 or 5 uses of brakes then drop to residual.
What I have done: Found a friendly BMW owner with a GS911 and tried to pull codes...got none. I bought and installed a new battery (Odyssey PC680). No change. I found another friendly GS-911 and tried again. This time we got codes. 17419 "Rear ABS Motor Defective" not present, 17910 "Brake Fluid Level Low" present, 17163 "Front ABS Motor Defective" present. I have checked the resevoirs (handlebar and under passenger seat) they are very full. I contacted Module Masters and got a return email stating they cant rebuild my ABS Modulator/Motors.
Am I as screwed as I think I am or is there something I can test or do? (yes I read the post about holding a vibrator against the ABS unit to shake the dirt out of the brushes)
I am seriously thinking about adjusting my levers, putting black electrical tape over the lights and just riding until winter then do the ABS-ectomy that I saw on you-tube.
I forgot to mention....with the key on, when I press the brake pedal the servos kick on but do not stop when I release the pedal. I have to turn the key off to get the brake servos to stop running. Front brake lever does not do this, it stops when I release the lever.
2002 K1200LT "Queen Mary"
Last edited by Str8wsky; Sep 2nd, 2013 at 4:02 pm.
Reason: more info