didn't say that at all. just staying focused on the issue at hand. i am not inclined to go searching for a problem in an area that is not showing symptoms. i do not think this is related to the abs system directly. i think this is only related to the abs system in that there might be shared components at play with the speedometer.
keep in mind that this car is extremely clean, and only has a bit less than 28k miles on it. the likelihood of an abs issue is extremely minimal. it is far more likely that it is a relay.
as for not knowing how to fix something, i just forgot which wheel the speed sensor was on, and didn't want to go removing them all to find it. it has been over a year since i had to work on a 968 at all, and a lot longer than that since i had to have a brake rotor off to expose any sensors. i was being lazy. the only thing i don't know how to do is test the relays here, other than swapping them out, which was not immediately available, as i don't have a second car here anymore. i was hoping somebody knew which pins to short, so i could disconnect the relay, short the pins, and then see if it worked.
the one thing i do find puzzling is that clearly there is a fault in the system, yet it does not pop a fault code on either a blink test or on the durametric. that seems to be at odds with itself, since it does provide those faults. it can test the speed sensor, and throw a code if it is faulty, but it cannot seem to test the current path to that sensor if it is something other than the sensor. it can trigger an antilock warning light, but not tell you which component is at fault. but, it can tell you about an individual fuel injector. lame.
as for not being grateful, that is not the case. however, people on this site often tend to run off on a tangent when they read something. somebody reads "abs" and then draws a connection to the abs pump. i understand that anecdotal conclusions are common, and that differential diagnostic skills are not, and i have no issue with that, as sometimes it will bring up something not otherwise immediately thought of. however, in this particular case, i think it is important to stay focused on the symptoms, and their likely cause.
the speedometer ceased working abruptly.
the antilock light came on simultaneously.
the durametric showed a speed sensor fault (19)
the likely cause would be a component shared by both the speedometer and the antilock system. since there is only one sensor in common, and i think the 2 relays in the same signal path, it is likely that it is there. i will be able to test that theory friday.
there is a chance it is back at the tiptronic, though i tend to discount this as the transmission operates normally otherwise. if the speed signal there was at fault, i think it would shift oddly, but it does not.
