To convince the transmission control module that a working automatic was still installed and clear the fourteen-odd diagnostic codes, [Dean] put together a block of eight common automotive relays.

Geotab subscribers using Allison transmissions can now access diagnostic and maintenance information already visible to drivers to make better decisions to drive uptime. For the Driver.

Simply plug the Automatic dongle into your OBD-II port (most 1996-and-later models are compatible), and let the Bluetooth low-energy connection to your Automatic app–equipped phone do the rest.