Control Unit Input Test: Notes
WARNING: This page is about a different car, the 2006 Acura MDX, 2005 Acura MDX, 2004 Acura MDX, and 2003 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
If the power window cannot be operated by its own window switch, the problem is not a multiplex control unit. Troubleshoot power or ground to the window switch or motor.