Re: Reverse engineer the K1200LT's diagnostic connector (K-/L-line, ISO9141 bus/proto
Thanks a lot for the advice! Yeah, this will become a project now.
Regarding the need for diagnosis, it arose from me being confused by the flashing "Brake Failure" light before starting to roll. I was not aware the bike is running the ABS test every time and that it is ok to see that. So being used to having my little OBD2 helper in my car (an E46, 3L, stick-shifter), I wanted immediately to check error codes and whatnot instead of reading the owner's manual. D'oh! So I started to look for documentation on the connector and found a bunch of stuff on the GS911 device. Was somewhat surprised by the price, but more than that, by the fact that given the high price, they have chosen to "lock" features on it. As an open source type of engineer, I'm easily provoked by manufacturers that lock otherwise available features on their sold devices to force customers into "obedience". I can see why they do that, otherwise one could use a single device to service all his friends' bikes. Kind'a see the problem. But ISO9141 protocol is an industry standard, and like with all standards, there is nothing that prevents development of cheaper DYI tools if someone's interested. I know the problem monopolists have when they are confronted by that. Is what happened to Apple when Android came along, to Intuit when the IRS played with the idea to create a free for all service to let people file directly with them, so the few "oligarchs" in the field lobbied for a compromise that has them offer a limited functionality, free version of their product for all tax-payers that don't have complicated tax returns and/or have low income, in exchange for IRS not supporting by default free-filing for those that have complex tax returns, although by all means, IRS can develop such a solution any time and it would even be fiscally justified. It is done in many countries in the European Union. No TurboTax there. I do believe that the GS911 is a mature and very capable tool. But I believe that people could use a less capable tool just to see what's wrong before they panic and take the bike to an expert mechanic. Sometimes it may be a DYI thing.
I will go through all the stuff you mentioned. The previous owners did stuff too, the brake lines may be already from Spiegler, however, they seemed to not care a lot about the "cowbell" thing. The bike actually spent many years parked at a dealership in LA, then a CHP policeman rode it privately, then it went to an experienced rider that fixed important things (e.g. completely replaced the hydraulic central stand and other things), and was about to fix the cowbell too, he sold me the bike with the parts prepared, I already put the rear brake-pads on, need to find some time this weekend between going skiing while it is cold and being a dad and whatnot to replace the disk too. And the front tire, and oil-change, and, and :-)
Thanks a bunch for the welcome and the advice again!