97 Accord EX 2.2 AT 'check engine' light on

Hi,

1997 Accord EX 2.2 AT
162,000 miles

Check Engine light is ON (for 1 week now).
I had code pulled: PO715 - Input/Turbine Speed Sensor A Circuit Malfunction

For the last month or so the trans has has a very slight slip on the 1-2
upshift on the first couple of shifts when starting out in the morning
(Northern NJ winter temps). And, it only does that the first few shifts,
only in the morning, and only when I'm hard on the gas. The rest of the
day it shifts perfectly. I've been religious about changing the ATF with
ATF-Z1 every 10 to 15K since new.

Would this be an easy or common fix?

Thanks in advance!

Jim