Passenger's Air Mix Control Motor Replacement

Open the glove box. Remove the damper and the glove box stop on each side, then let the glove box hang down (see DASHBOARD CENTER LOWER COVER DISASSEMBLY/REASSEMBLY ).
Disconnect the 7P connector (A) from the passenger's air mix control motor. Remove the self-tapping screws and the passenger's air mix control motor (B) from the heater unit.

Fig 1: Identifying Passenger's Air Mix Control Motor And 7P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.
With the motor removed, make sure the door linkage moves smoothly and does not bind.
Install the motor in the reverse order of removal. Make sure the pin on the motor is properly engaged with the linkage. After installation, make sure the motor runs smoothly.