Mazda CX-5 emisión recall (PCM) problem

I got this letter yesterday of my Mazda cx-5 2013 41,000 miles emisión recall 8915K.
And I went to the dealer .for a normal oil change and they told me that i have to change my tranfer case because is leaking.
Now my question is this powertrain control module recall has anything to do of fail the transfer case.