Here's an excerpt from the 2002 Acura MDX 4WD 6cyl Repair guide for replacing what the reference manual calls the "control assembly" - its located under the console rear trim and may (or may not)
contain the blower resistor - my manual doesn't say - but this is the closest thing I could find for you. Every other blower resistor I've had to find was located close to the heater controls - and this
car seems to be no exception -- its heater controls are located in the console between the seats, rather than in the dash (as in Acura 2003-06 MDX models).
You may want to call your friendly Acura dealership ad speak to the parts department, to make sure where the blower resistor is located - or a visit to a dealership parts counter often (or
Advance Auto Parts is helpful too) ofen clarifies questions I have from Haynes manuals (the cheapest car repair guides).
All this assumes that you've correctly diagnosed your blower control problem -- as in "replace the blower resistor when the blower works only on the MAX/Highest setting."
-- begin excerpt from 2001-2 Acura 4wd 6cyl MDX Repair manual --
Control Assembly Removal & Installation2001-02 Models
Remove the console rear trim. Refer to the accompanying illustration.
Fig. Exploded view of the console rear trim
Remove the self-tapping screws and the rear heater-A/C control unit (A) from the console rear trim (B).
Install the control unit in the reverse order of removal. After
installation, operate the control unit controls to see whether it works
Run the self-diagnosis function to confirm that there are no problems in the system.
Fig. Remove the self-tapping screws and the rear heater-A/C control unit (A) from the console rear trim (B)
--- end excerpt from 2001-2 Acura 4WD MDX 6cyl Repair Manual ---