An apparatus and methods are provided for data communications associated with a heavy duty vehicle. The apparatus preferably includes at least one electronic subsystem associated with the heavy duty vehicle and a plurality of electrical conductors connected to the at least one electronic subsystem and...http://www.google.ca/patents/US20020060625?utm_source=gb-gplus-sharePatent US20020060625 - Apparatus and method for data communication between vehicle and remote data communication terminal
