If the damage abuts the AC units you might be able to see the plywood from below. If you need to actually check your roof from above you can examine the plywood in this way. Purchase a length of Eaternabond tape and a roller. I would suggest the 4 inch by 10 foot should be enough for this. Then, with a new blade in your zip blade cut an X across the suspect spot. After the inspection you can apply Etearnabond across the X extending a few inches beyond the ends of the cut to seal it up forever.
If you do find water damage then you can still seal it up till you can either have it fixed or are ready to do it yourself.
2017 SLX 195RB
2021 Jeep Grand Cherokee Summit L 5.7L V8
Andersen WDH hitch, Renogy 100 AH Lithium &
200 Watts solar panels from Renogy
Prev. '14 Jeep Grand Cherokee Overland, gas 3.6 V6