Applus Technologies, Inc. Smog DADdy User Manual VER 8.2 Page 49 of 55
Auxiliary Power and Alternate Ground Operation.
If it ever happens that you cannot obtain communications after ensuring your DAD has power,
please unplug the DAD from both the vehicle and the USB until all the lights go out. Then, wait
10 seconds and plug it back in. You should be able to resume testing.