2000 taurus se w/20K miles, transaxle warning light begins to flash while driving at highway speeds only (w/auto climate control on, I think -- at least the last 2 times it happened, shutting off AC or heater allowed me to drive on w/o the warning light coming on again). I stop and restart the engine and the light is off. May come on again in a few miles or not for a long time. No noticeable shifting or driving/operational problems.
Does it in D1 and in D. I'll have to take it in to get checked but want to be knowledgeable in order to save a mega-buck diagnostic that fails to address/correct the problem.