Take a 7mm socket or nutdriver and remove the bolts that hold the little black PCM case to the kick panel out, remove the case and see for yourself. Sometimes you have to use a long screwdriver down the driver's side of the case to pry the little plastic rib out of the back that holds it. (Grind this off while it's out).
You'll have to get to know how to do this in order to install the chip anyway. Takes all of 5 minutes even if you've never done it before. And it's the only way to know for sure what you've got. There's always the chance that the PCM has been changed for various reasons. My Vin would tell you that I have an AWA3 PCM, yet I have a DAC3 instead.
You can probably find instructions on removing the PCM from whomever you're getting the chip from. And just to see the cache code you don't even have to unplug the harness or actually remove the PCM, just the cover so that you can see the end plug where it's written.