General Category > ABS related issues
Another ABS problem
Alexm1:
--- Quote from: ManxGS on February 01, 2017, 02:50:10 PM ---I'm certain I'm not following procedure Alex, I've no motor to run up the rear circuit, but the front is running and bleeding fine. I've a known good ABS unit coming tonight to try, so I'll update with the results of that test.
--- End quote ---
The correct procedure is done with the battery removed and thus no motors running. You are wasting your time and money replacing an abs unit before you bleed it correctly. It is of course your time and money to waste as you want.
ManxGS:
This guy seems to say very different about the battery. I thought these boards were supposed to help. I'm proper confused now.
http://www.ukgser.com/technical/nick/Brake%20bleeding%20(All%20BMW%20EVO%20systems,%20'04-'07).pdf
mike d:
--- Quote ---The correct procedure is done with the battery removed and thus no motors running.
--- End quote ---
Sorry Alexm1 never heard of that method before for the servo ABS system.
ManxGS the following shows the GS-911 bleed function is available on the PC/laptop version, but not on the wifi Web version
http://www.hexcode.co.za/products/gs-911/iabs-can
Mike
Alexm1:
--- Quote from: Alexm1 on February 01, 2017, 11:25:27 PM ---
--- Quote from: ManxGS on February 01, 2017, 02:50:10 PM ---I'm certain I'm not following procedure Alex, I've no motor to run up the rear circuit, but the front is running and bleeding fine. I've a known good ABS unit coming tonight to try, so I'll update with the results of that test.
--- End quote ---
The correct procedure is done with the battery removed and thus no motors running. You are wasting your time and money replacing an abs unit before you bleed it correctly. It is of course your time and money to waste as you want.
--- End quote ---
ManxGS, sorry, I did not mean to confuse you. It is me that is confused! I have a k1200 with iABS and I have been giving you advice about a completely different brake system. I jumped in without reading the question, again sorry.
Found this procedure, I hope it is the correct one for your bike
http://advwisdom.hogranch.com/Wisdom/service_abs3.pdf
ManxGS:
Good morning. Update so far. Another known good and fault free unit removed from a GS and fitted. Tried to bleed up and the same 1 motor startup is heard and no rear servo motor runs. The front one will run for about 5 or 6 lever pulls then stops. I read the codes and it's 24971, and description is now that the front circuit pressure is too high. Live data shows circuit pressures bouncing around the 50bar range again. What could possibly be on the bike that can affect the ABS units so much? Do they get controlled by the bikes ECU and not just their own one?
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