Originally Posted by
Blacky
The AT1 designation is not the version number.
AT1 means a GM specific cable.
AT2 means a Ford specific cable
AT3 means a Chrysler specific cable
AT123 mean a cable that supports all three manufacturers.
AutoTap V1 cables come in AT1, AT2, AT3 and AT123 versions, are black and are RS232 serial cables. (Not supported by EFILive)
AutoTap V2 cables come in AT1, AT2, AT3 and AT123 versions, are black and are RS232 serial cables. (Supported by EFILive)
AutoTap V3 cables support GM, Ford and Chrysle, are red and are USB. (Supported by EFILive)
Regards
Paul