Power Mirror

Remove the door trim panel, then disconnect the 3-P connector from the mirror. See Fig 1 .
Test actuator operation.
1. Tilt Up
  
  Connect battery positive to the No. 1 terminal and negative to the No. 2 terminal.
2. Tilt Down
  
  Connect battery positive to the No. 2 terminal and negative to the No. 1 terminal.
3. Swing Left
  
  Connect battery positive to the No. 2 terminal and negative to the No. 3 terminal.
4. Swing Right
  
  Connect battery positive to the No. 3 terminal and negative to the No. 2 terminal.
If the mirror fails to operate properly, replace it.

Fig 1: Testing Power Mirror Operation
Courtesy of AMERICAN HONDA MOTOR CO., INC.