My 2016 Prius 3 having trouble with emissions test in Tennessee

My 2016 Prius 3 won't pass the emissions testing in Tennessee, originally purchased in California and now I live in Tennessee and last year and this year they say my Prius won't communicate with their test equipment- the technician says my gas motor won't stay on long enough -
I don't want to pay toyota 230 dollars to trouble shoot -

Do you think if I put my air conditioner on high that it might keep the gas motor running?

Thanks so much!

 

Thanks- yah, they require it in the county i am living in= but here's a caveat-
* I have a new rav4 hybrid that is in transit (was/is due to arrive in early November)
* The county i am living in will stop the mandatory annual emissions testing in January
So, I can hang tight and see if my new car will arrive in time before I need to update my current tags which technically
I got last year Nov 12th . . .

and RJ Parker thanks for the instructions-
I will copy it so I have it in my notes on my phone and know what to do when my car is parked
for the emissions test-

 

Thanks- there is only one emissions testing center in my city= and they are all connected and the same main guy oversees all of the places in the county- but the good news is i found out my registration is good through the end of this month and since my new car is supposed to arrive in early November - i shouldn't have to get my car retested-
also, a new friend/couple here in Tennessee they have a prius, says they have had that same emissions center test their prius and it has passed easily . . .